Table Of Contents
D through F Commands
debug aaa
debug arp
debug arp-inspection
debug asdm history
debug cmgr
debug context
debug cplane
debug crypto ca
debug crypto engine
debug crypto ipsec
debug crypto isakmp
debug ctiqbe
debug dhcpc
debug dhcpd
debug dhcprelay
debug disk
debug dns
debug entity
debug fixup
debug fover
debug fsm
debug ftp client
debug generic
debug gtp
debug h323
debug http
debug http-map
debug icmp
debug igmp
debug ils
debug imagemgr
debug ipsec-over-tcp
debug ipsec-pass-thru
debug ipv6
debug iua-proxy
debug kerberos
debug ldap
debug mac-address-table
debug menu
debug mfib
debug mgcp
debug module-boot
debug mrib
debug ntdomain
debug ntp
debug ospf
debug parser cache
debug pim
debug pix pkt2pc
debug pix process
debug pptp
debug radius
debug rip
debug rtsp
debug sdi
debug sequence
debug session-command
debug sip
debug skinny
debug smtp
debug sqlnet
debug ssh
debug ssl
debug sunrpc
debug tacacs
debug tcp-map
debug timestamps
debug vpn-sessiondb
debug xdmcp
default
default (crl configure)
default (time-range)
default enrollment
default-domain
default-group-policy
default-group-policy (webvpn)
default-idle-timeout
default-information originate
delete
deny version
description
dhcp-network-scope
dhcp-server
dhcpd address
dhcpd auto_config
dhcpd dns
dhcpd domain
dhcpd enable
dhcpd lease
dhcpd option
dhcpd ping_timeout
dhcpd wins
dhcprelay enable
dhcprelay server
dhcprelay setroute
dhcprelay timeout
dir
disable
distance ospf
dns domain-lookup
dns-guard
dns name-server
dns retries
dns timeout
dns-server
domain-name
downgrade
drop
duplex
email
enable
enable (webvpn)
enable password
enforcenextupdate
enrollment retry count
enrollment retry period
enrollment terminal
enrollment url
erase
established
exceed-mss
exit
failover
failover active
failover group
failover interface ip
failover interface-policy
failover key
failover lan enable
failover lan interface
failover lan unit
failover link
failover mac address
failover polltime
failover reload-standby
failover replication http
failover reset
failover timeout
filter
filter activex
filter ftp
filter https
filter java
filter url
fips enable
fips self-test poweron
firewall transparent
format
fqdn
fragment
ftp-map
ftp mode passive
functions
D through F Commands
debug aaa
To show debug messages for AAA, use the debug aaa command in privileged EXEC mode. To stop showing AAA messages, use the no form of this command.
debug aaa [ accounting | authentication | authorization | internal | vpn [ level ] ]
no debug aaa
Syntax Description
accounting
|
(Optional) Show debug messages for accounting only.
|
authentication
|
(Optional) Show debug messages for authentication only.
|
authorization
|
(Optional) Show debug messages for authorization only.
|
internal
|
(Optional) Show debug messages for AAA functions supported by the local database only.
|
level
|
(Optional) Specifies the debug level. Valid with the vpn keyword only.
|
vpn
|
(Optional) Show debug messages for VPN-related AAA functions only.
|
Defaults
The default level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was modified to include new keywords.
|
Usage Guidelines
The debug aaa command displays detailed information about AAA activity. The no debug all or undebug all commands turn off all enabled debugs.
Examples
The following example enables debugging for AAA functions supported by the local database:
hostname(config)# debug aaa internal
debug aaa internal enabled at level 1
hostname(config)# uap allocated. remote address: 10.42.15.172, Session_id: 2147483841
uap freed for user . remote address: 10.42.15.172, session id: 2147483841
Related Commands
Command
|
Description
|
show running-config aaa
|
Displays running configuration related to AAA.
|
debug arp
To show debug messages for ARP, use the debug arp command in privileged EXEC mode. To stop showing debug messages for ARP, use the no form of this command.
debug arp
no debug arp
Syntax Description
This command has no arguments or keywords.
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for ARP:
Related Commands
Command
|
Description
|
arp
|
Adds a static ARP entry.
|
show arp statistics
|
Shows ARP statistics.
|
show debug
|
Shows all enabled debuggers.
|
debug arp-inspection
To show debug messages for ARP inspection, use the debug arp-inspection command in privileged EXEC mode. To stop showing debug messages for ARP inspection, use the no form of this command.
debug arp-inspection
no debug arp-inspection
Syntax Description
This command has no arguments or keywords.
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
—
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for ARP inspection:
hostname# debug arp-inspection
Related Commands
Command
|
Description
|
arp
|
Adds a static ARP entry.
|
arp-inspection
|
For transparent firewall mode, inspects ARP packets to prevent ARP spoofing.
|
show debug
|
Shows all enabled debuggers.
|
debug asdm history
To view debug information for ASDM, use the debug asdm history command in privileged EXEC mode.
debug asdm history level
Syntax Description
level
|
(Optional) Specifies the debug level.
|
Defaults
The default level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was changed from the debug pdm history command to the debug asdm history command.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables level 1 debugging of ASDM:
hostname# debug asdm history
debug asdm history enabled at level 1
Related Commands
Command
|
Description
|
show asdm history
|
Displays the contents of the ASDM history buffer.
|
debug cmgr
To show debug messages about the SSM card manager, use the debug cmgr command in privileged EXEC mode. To stop showing debug messages for the card manager, use the no form of this command.
debug cmgr [level]
no debug cmgr [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
—
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for the card manager:
Related Commands
Command
|
Description
|
hw-module module recover
|
Recovers an AIP SSM by loading a recovery image from a TFTP server.
|
hw-module module reset
|
Shuts down an AIP SSM and performs a hardware reset.
|
hw-module module reload
|
Reloads the AIP SSM software.
|
hw-module module shutdown
|
Shuts down the AIP SSM software in preparation for being powered off without losing configuration data.
|
show module
|
Shows SSM information.
|
debug context
To show debug messages when you add or delete a security context, use the debug context command in privileged EXEC mode. To stop showing debug messages for contexts, use the no form of this command.
debug context [level]
no debug context [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
—
|
—
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for context management:
Related Commands
Command
|
Description
|
context
|
Creates a security context in the system configuration and enters context configuration mode.
|
show context
|
Shows context information.
|
show debug
|
Shows all enabled debuggers.
|
debug cplane
To show debug messages about the control plane that connects internally to an SSM, use the debug cplane command in privileged EXEC mode. To stop showing debug messages for the control plane, use the no form of this command.
debug cplane [level]
no debug cplane [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
—
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for the control plane:
Related Commands
Command
|
Description
|
hw-module module recover
|
Recovers an intelligent SSM by loading a recovery image from a TFTP server.
|
hw-module module reset
|
Shuts down an SSM and performs a hardware reset.
|
hw-module module reload
|
Reloads the intelligent SSM software.
|
hw-module module shutdown
|
Shuts down the SSM software in preparation for being powered off without losing configuration data.
|
show module
|
Shows SSM information.
|
debug crypto ca
To show debug messages for PKI activity (used with CAs), use the debug crypto ca command in privileged EXEC mode. To stop showing debug messages for PKI, use the no form of this command.
debug crypto ca [messages | transactions] [level]
no debug crypto ca [messages | transactions] [level]
Syntax Description
messages
|
(Optional) Shows only debug messages for PKI input and output messages.
|
transactions
|
(Optional) Shows only debug messages for PKI transactions.
|
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number. Level 1 (the default) shows messages only when errors occur. Level 2 shows warnings. Level 3 shows informational messages. Levels 4 and up show additional information for troubleshooting.
|
Defaults
By default, this command shows all debug messages. The default level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for PKI:
hostname# debug crypto ca
Related Commands
Command
|
Description
|
debug crypto engine
|
Shows debug messages for the crypto engine.
|
debug crypto ipsec
|
Shows debug messages for IPSec.
|
debug crypto isakmp
|
Shows debug messages for ISAKMP.
|
debug crypto engine
To show debug messages for the crypto engine, use the debug crypto engine command in privileged EXEC mode. To stop showing debug messages for the crypto engine, use the no form of this command.
debug crypto engine [level]
no debug crypto engine [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for the crypto engine:
hostname# debug crypto engine
Related Commands
Command
|
Description
|
debug crypto ca
|
Shows debug messages for the CA.
|
debug crypto ipsec
|
Shows debug messages for IPSec.
|
debug crypto isakmp
|
Shows debug messages for ISAKMP.
|
debug crypto ipsec
To show debug messages for IPSec, use the debug crypto ipsec command in privileged EXEC mode. To stop showing debug messages for IPSec, use the no form of this command.
debug crypto ipsec [level]
no debug crypto ipsec [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for IPSec:
hostname# debug crypto ipsec
Related Commands
Command
|
Description
|
debug crypto ca
|
Shows debug messages for the CA.
|
debug crypto engine
|
Shows debug messages for the crypto engine.
|
debug crypto isakmp
|
Shows debug messages for ISAKMP.
|
debug crypto isakmp
To show debug messages for ISAKMP, use the debug crypto isakmp command in privileged EXEC mode. To stop showing debug messages for ISAKMP, use the no form of this command.
debug crypto isakmp [timers] [level]
no debug crypto isakmp [timers] [level]
Syntax Description
timers
|
(Optional) Shows debug messages for ISAKMP timer expiration.
|
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number. Level 1 (the default) shows messages only when errors occur. Levels 2 through 7 show additional information. Level 254 shows decrypted ISAKMP packets in a human readable format. Level 255 shows hexadecimal dumps of decrypted ISAKMP packets.
|
Defaults
The default level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for ISAKMP:
hostname# debug crypto isakmp
Related Commands
Command
|
Description
|
debug crypto ca
|
Shows debug messages for the CA.
|
debug crypto engine
|
Shows debug messages for the crypto engine.
|
debug crypto ipsec
|
Shows debug messages for IPSec.
|
debug ctiqbe
To show debug messages for CTIQBE application inspection, use the debug ctiqbe command in privileged EXEC mode. To stop showing debug messages for CTIQBE application inspection, use the no form of this command.
debug ctiqbe [level]
no debug ctiqbe [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
To see the current debug command settings, enter the show debug command. To stop the debug output, enter the no debug command. To stop all debug messages from being displayed, enter the no debug all command.
Note
Enabling the debug ctiqbe command may slow down traffic on busy networks.
Examples
The following example enables debug messages at the default level (1) for CTIQBE application inspection:
Related Commands
Command
|
Description
|
inspect ctiqbe
|
Enables CTIQBE application inspection.
|
show ctiqbe
|
Displays information about CTIQBE sessions established through the security appliance.
|
show conn
|
Displays the connection state for different connection types.
|
timeout
|
Sets the maximum idle time duration for different protocols and session types.
|
debug dhcpc
To enable debugging of the DHCP client, use the debug dhcpc command in privileged EXEC mode. To disable debugging, use the no form of this command.
debug dhcpc {detail | packet | error} [level]
no debug dhcpc {detail | packet | error} [level]
Syntax Description
detail
|
Displays detail event information that is associated with the DHCP client.
|
error
|
Displays error messages that are associated with the DHCP client.
|
level
|
(Optional) Specifies the debug level. Valid valuse range from 1 to 255.
|
packet
|
Displays packet information that is associated with the DHCP client.
|
Defaults
The default debug level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
—
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Displays DHCP client debug information.
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example shows how to enable debugging for the DHCP client:
hostname# debug dhcpc detail 5
debug dhcpc detail enabled at level 5
Related Commands
Command
|
Description
|
show ip address dhcp
|
Displays detailed information about the DHCP lease for an interface.
|
show running-config interface
|
Displays the running configuration of the specified interface.
|
debug dhcpd
To enable debugging of the DHCP server, use the debug dhcpd command in privileged EXEC mode. To disable debugging, use the no form of this command.
debug dhcpd {event | packet} [level]
no debug dhcpd {event | packet} [level]
Syntax Description
event
|
Displays event information that is associated with the DHCP server.
|
level
|
(Optional) Specifies the debug level. Valid valuse range from 1 to 255.
|
packet
|
Displays packet information that is associated with the DHCP server.
|
Defaults
The default debug level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
The debug dhcpd event command displays event information about the DHCP server. The debug dhcpd packet command displays packet information about the DHCP server.
Use the no form of the debug dhcpd commands to disable debugging.
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following shows an example of enabling DHCP event debugging:
hostname# debug dhcpd event
debug dhcpd event enabled at level 1
Related Commands
Command
|
Description
|
show dhcpd
|
Displays DHCP binding, statistic, or state information.
|
show running-config dhcpd
|
Displays the current DHCP server configuration.
|
debug dhcprelay
To enable debugging of the DHCP relay server, use the debug dhcpreleay command in privileged EXEC mode. To disable debugging, use the no form of this command.
debug dhcprelay {event | packet | error} [level]
no debug dhcprelay {event | packet | error} [level]
Syntax Description
error
|
Displays error messages that are associated with the DHCP relay agent.
|
event
|
Displays event information that is associated with the DHCP relay agent.
|
level
|
(Optional) Specifies the debug level. Valid valuse range from 1 to 255.
|
packet
|
Displays packet information that is associated with the DHCP relay agent.
|
Defaults
The default debug level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
—
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example shows how to enable debugging for DHCP relay agent error messages:
hostname# debug dhcprelay error
debug dhcprelay error enabled at level 1
Related Commands
Command
|
Description
|
clear configure dhcprelay
|
Removes all DHCP relay agent settings.
|
clear dhcprelay statistics
|
Clears the DHCP relay agent statistic counters.
|
show dhcprelay statistics
|
Displays DHCP relay agent statistic information.
|
show running-config dhcprelay
|
Displays the current DHCP relay agent configuration.
|
debug disk
To display file system debug information, use the debug disk command in privileged EXEC mode. To disable the display of debug information, use the no form of this command.
debug disk {file | file-verbose | filesystem} [level]
no debug disk {file | file-verbose | filesystem}
Syntax Description
file
|
Enables file-level disk debug messages.
|
file-verbose
|
Enables verbose file-level disk debug messages
|
filesystem
|
Enables file system debug messages.
|
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
—
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables file-level disk debug messages. The show debug command reveals that file-level disk debug messages are enabled. The dir command causes several debug messages.
hostname# debug disk file
debug disk file enabled at level 1
debug vpn-sessiondb enabled at level 1
IFS: Opening: file flash:/, flags 1, mode 0
IFS: Opened: file flash:/ as fd 3
IFS: Opening: file flash:/, flags 1, mode 0
4 -rw- 5124096 14:42:27 Apr 04 2005 cdisk.binIFS: Opened: file flash:/ as fd 3
9 -rw- 5919340 14:53:39 Apr 04 2005 ASDMIFS: Getdent: fd 3
11 drw- 0 15:18:56 Apr 21 2005 syslog
16128000 bytes total (5047296 bytes free)
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug dns
To show debug messages for DNS, use the debug dns command in privileged EXEC mode. To stop showing debug messages for DNS, use the no form of this command.
debug dns [resolver | all] [level]
no debug dns [resolver | all] [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
resolver
|
(Optional) Shows only DNS resolver messages.
|
all
|
(Default) Shows all messages, including messages about the DNS cache.
|
Defaults
The default level is 1. If you do not specify any keywords, the security appliance shows all mesages.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for DNS:
Related Commands
Command
|
Description
|
class-map
|
Defines the traffic class to which to apply security actions.
|
inspect dns
|
Enables DNS application inspection.
|
policy-map
|
Associates a class map with specific security actions.
|
service-policy
|
Applies a policy map to one or more interfaces.
|
debug entity
To display management information base (MIB) debug information, use the debug entity command in privileged EXEC mode. To disable the display of debug information, use the no form of this command.
debug entity [level]
no debug entity
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables MIB debug messages. The show debug command reveals that MIB debug messages are enabled.
debug entity enabled at level 1
debug entity enabled at level 1
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug fixup
To display detailed information about application inspection, use the debug fixup command in privileged EXEC mode. To disable debugging, Use the no form of this command.
debug fixup
no debug fixup
Defaults
All options are enabled by default.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
The debug fixup command displays detailed information about application inspection. The no debug all or undebug all commands turn off all enabled debugs.
Examples
The following example enables the display of detailed information about application inspection:
Related Commands
Commands
|
Description
|
class-map
|
Defines the traffic class to which to apply security actions.
|
inspect protocol
|
Enables application inspection for specific protocols.
|
policy-map
|
Associates a class map with specific security actions.
|
debug fover
To display failover debug information, use the debug fover command in privileged EXEC mode. To disable the display of debug information, use the no form of this command.
debug fover {cable | fail | fmsg | ifc | open | rx | rxdmp | rxip | switch | sync | tx | txdmp | txip |
verify}
no debug fover {cable | fail | fmsg | ifc | open | rx | rxdmp | rxip | switch | sync | tx | txdmp | txip
| verify}
Syntax Description
cable
|
Failover LAN status or serial cable status.
|
fail
|
Failover internal exception.
|
fmsg
|
Failover message.
|
ifc
|
Network interface status trace.
|
open
|
Failover device open.
|
rx
|
Failover message receive.
|
rxdmp
|
Failover receive message dump (serial console only).
|
rxip
|
IP network failover packet receive.
|
switch
|
Failover switching status.
|
sync
|
Failover configuration/command replication.
|
tx
|
Failover message transmit.
|
txdmp
|
Failover transmit message dump (serial console only).
|
txip
|
IP network failover packet transmit.
|
verify
|
Failover message verify.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was modified. It includes additional debug keywords.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example shows how to display debug information for failover command replication:
hostname# debug fover sync
Related Commands
Command
|
Description
|
show failover
|
Displays information about the failover configuration and operational statistics.
|
debug fsm
To display FSM debug information, use the debug fsm command in privileged EXEC mode. To disable the display of debug information, use the no form of this command.
debug fsm [level]
no debug fsm
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables FSM debug messages. The show debug command reveals that FSM debug messages are enabled.
debug fsm enabled at level 1
debug fsm enabled at level 1
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug ftp client
To show debug messages for FTP, use the debug ftp client command in privileged EXEC mode. To stop showing debug messages for FTP, use the no form of this command.
debug ftp client [level]
no debug ftp client [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
To see the current debug command settings, enter the show debug command. To stop the debug output, enter the no debug command. To stop all debug messages from being displayed, enter the no debug all command.
Note
Enabling the debug ftp client command may slow down traffic on busy networks.
Examples
The following example enables debug messages at the default level (1) for FTP:
hostname# debug ftp client
Related Commands
Command
|
Description
|
copy
|
Uploads or downloads image files or configuration files to or from an FTP server.
|
ftp mode passive
|
Configures the mode for FTP sessions.
|
show running-config ftp mode
|
Displays FTP client configuration.
|
debug generic
To display miscellaneous debug information, use the debug generic command in privileged EXEC mode. To disable the display of miscellaneous debug information, use the no form of this command.
debug generic [level]
no debug generic
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables miscellaneous debug messages. The show debug command reveals that miscellaneous debug messages are enabled.
debug generic enabled at level 1
debug generic enabled at level 1
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug gtp
To display detailed information about GTP inspection, use the debug gtp command in privileged EXEC mode. To disable debugging, Use the no form of this command.
debug gtp [ error | event | ha | parser ]
no debug gtp [ error | event | ha | parser ]
Syntax Description
error
|
(Optional) Displays debug information on errors encountered while processing the GTP message.
|
event
|
(Optional) Displays debug information on GTP events.
|
ha option
|
(Optional) Debugs information on GTP HA events.
|
parser
|
(Optional) Displays debug information for parsing the GTP messages.
|
Defaults
All options are enabled by default.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
The debug gtp command displays detailed information about GTP inspection. The no debug all or undebug all commands turn off all enabled debugs.
Note
GTP inspection requires a special license.
Examples
The following example enables the display of detailed information about GTP inspection:
Related Commands
Commands
|
Description
|
clear service-policy inspect gtp
|
Clears global GTP statistics.
|
gtp-map
|
Defines a GTP map and enables GTP map configuration mode.
|
inspect gtp
|
Applies a GTP map to use for application inspection.
|
show service-policy inspect gtp
|
Displays the GTP configuration.
|
show running-config gtp-map
|
Shows the GTP maps that have been configured.
|
debug h323
To show debug messages for H.323, use the debug h323 command in privileged EXEC mode. To stop showing debug messages for H.323, use the no form of this command.
debug h323 {h225 | h245 | ras} [asn | event]
no debug h323 {h225 | h245 | ras} [asn | event]
Syntax Description
h225
|
Specifies H.225 signaling.
|
h245
|
Specifies H.245 signaling.
|
ras
|
Specifies the registration, admission, and status protocol.
|
asn
|
(Optional) Displays the output of the decoded protocol data units (PDU)s.
|
event
|
(Optional) Displays the events of the H.245 signaling or turns on both traces.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
To see the current debug command settings, enter the show debug command. To stop the debug output, enter the no debug command. To stop all debug messages from being displayed, enter the no debug all command.
Note
Enabling the debug h323 command may slow down traffic on busy networks.
Examples
The following example enables debug messages at the default level (1) for H.225 signaling
hostname# debug h323 h225
Related Commands
Command
|
Description
|
inspect h323
|
Enables H.323 application inspection.
|
show h225
|
Displays information for H.225 sessions established across the security appliance.
|
show h245
|
Displays information for H.245 sessions established across the security appliance by endpoints using slow start.
|
show h323-ras
|
Displays information for H.323 RAS sessions established across the security appliance.
|
timeout h225 | h323
|
Configures idle time after which an H.225 signalling connection or an H.323 control connection will be closed.
|
debug http
To display detailed information about HTTP traffic, use the debug http command in privileged EXEC mode. To disable debugging, Use the no form of this command.
debug http [ level ]
no debug http [ level ]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The defafult for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
The debug http command displays detailed information about HTTP traffic. The no debug all or undebug all commands turn off all enabled debugs.
Examples
The following example enables the display of detailed information about HTTP traffic:
Related Commands
Commands
|
Description
|
http
|
Specifies hosts that can access the HTTP server internal to the security appliance.
|
http-proxy
|
Configures an HTTP proxy server.
|
http redirect
|
Redirects HTTP traffic to HTTPS.
|
http server enable
|
Enables the security appliance HTTP server.
|
debug http-map
To show debug messages for HTTP application inspection maps, use the debug http-map command in privileged EXEC mode. To stop showing debug messages for HTTP application inspection, use the no form of this command.
debug http-map
no debug http-map
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
To see the current debug command settings, enter the show debug command. To stop the debug output, enter the no debug command. To stop all debug messages from being displayed, enter the no debug all command.
Note
Enabling the debug http-map command may slow down traffic on busy networks.
Examples
The following example enables debug messages at the default level (1) for HTTP application inspection:
Related Commands
Command
|
Description
|
class-map
|
Defines the traffic class to which to apply security actions.
|
debug appfw
|
Displays detailed information about HTTP application inspection.
|
http-map
|
Defines an HTTP map for configuring enhanced HTTP inspection.
|
inspect http
|
Applies a specific HTTP map to use for application inspection.
|
policy-map
|
Associates a class map with specific security actions.
|
debug icmp
To display detailed information about ICMP inspection, use the debug icmp command in privileged EXEC mode. To disable debugging, Use the no form of this command.
debug icmp trace [ level ]
no debug icmp trace [ level ]
Syntax Description
trace
|
Displays debug information about ICMP trace activity.
|
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
All options are enabled.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
The debug icmp command displays detailed information about ICMP inspection. The no debug all or undebug all commands turn off all enabled debugs.
Examples
The following example enables the display of detailed information about ICMP inspection:
Related Commands
Commands
|
Description
|
clear configure icmp
|
Clears the ICMP configuration.
|
icmp
|
Configures access rules for ICMP traffic that terminates at a security appliance interface.
|
show conn
|
Displays the state of connections through the security appliance for different protocols and session types.
|
show icmp
|
Displays ICMP configuration.
|
timeout icmp
|
Configures idle timeout for ICMP.
|
debug igmp
To display IGMP debug information, use the debug igmp command in privileged EXEC mode. To stop the display of debug information, use the no form of this command.
debug igmp [group group_id | interface if_name]
no debug igmp [group group_id | interface if_name]
Syntax Description
group group_id
|
Displays IGMP debug information for the specified group.
|
interface if_name
|
Display IGMP debug information for the specified interface.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
—
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following is sample output from the debug igmp command:
IGMP: Received v2 Query on outside from 192.168.3.2
IGMP: Send v2 general Query on dmz
IGMP: Received v2 Query on dmz from 192.168.4.1
IGMP: Send v2 general Query on outside
IGMP: Received v2 Query on outside from 192.168.3.1
IGMP: Send v2 general Query on inside
IGMP: Received v2 Query on inside from 192.168.1.1
IGMP: Received v2 Report on inside from 192.168.1.6 for 224.1.1.1
IGMP: Updating EXCLUDE group timer for 224.1.1.1
Related Commands
Command
|
Description
|
show igmp groups
|
Displays the multicast groups with receivers that are directly connected to the security appliance and that were learned through IGMP.
|
show igmp interface
|
Displays multicast information for an interface.
|
debug ils
To show debug messages for ILS, use the debug ils command in privileged EXEC mode. To stop showing debug messages for ILS, use the no form of this command.
debug ils [level]
no debug ils [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
To see the current debug command settings, enter the show debug command. To stop the debug output, enter the no debug command. To stop all debug messages from being displayed, enter the no debug all command.
Note
Enabling the debug ils command may slow down traffic on busy networks.
Examples
The following example enables debug messages at the default level (1) for ILS application inspection:
Related Commands
Command
|
Description
|
class-map
|
Defines the traffic class to which to apply security actions.
|
inspect ils
|
Enables ILS application inspection.
|
policy-map
|
Associates a class map with specific security actions.
|
service-policy
|
Applies a policy map to one or more interfaces.
|
debug imagemgr
To display Image Manager debug information, use the debug imagemgr command in privileged EXEC mode. To disable the display of debug information, use the no form of this command.
debug imagemgr [level]
no debug imagemgr
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables Image Manager debug messages. The show debug command reveals that Image Manager debug messages are enabled.
debug imagemgr enabled at level 1
debug imagemgr enabled at level 1
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug ipsec-over-tcp
To display IPSec-over-TCP debug information, use the debug ipsec-over-tcp command in privileged EXEC mode. To disable the display of debug information, use the no form of this command.
debug ipsec-over-tcp [level]
no debug ipsec-over-tcp
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables IPSec-over-TCP debug messages. The show debug command reveals that IPSec-over-TCP debug messages are enabled.
hostname# debug ipsec-over-tcp
debug ipsec-over-tcp enabled at level 1
debug ipsec-over-tcp enabled at level 1
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug ipsec-pass-thru
To show debug messages for ipsec-pass-thru, use the debug ipsec-pass-thru command in privileged EXEC mode. To stop showing debug messages for DNS, use the no form of this command.
debug ipsec-pass-thru level
no debug ipsec-pass-thru
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default level is 1. If you do not specify any keywords, the security appliance shows all mesages.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0(5)
|
This command was introduced.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for DNS:
hostname# debug ipsec-pass-thru
Related Commands
Command
|
Description
|
inspect ipsec-pass-thru
|
Enables IPSec pass-thru application inspection.
|
debug ipv6
To display ipv6 debug messages, use the debug ipv6 command in privileged EXEC mode. To stop the display of debug messages, use the no form of this command.
debug ipv6 {icmp | interface | nd | packet | routing}
no debug ipv6 {icmp | interface | nd | packet | routing}
Syntax Description
icmp
|
Displays debug messages for IPv6 ICMP transactions, excluding ICMPv6 neighbor discovery transactions.
|
interface
|
Displays debug information for IPv6 interfaces.
|
nd
|
Displays debug messages for ICMPv6 neighbor discovery transactions.
|
packet
|
Displays debug messages for IPv6 packets.
|
routing
|
Displays debug messages for IPv6 routing table updates and route cache updates.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
—
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following is sample output for the debug ipv6 icmp command:
hostname# debug ipv6 icmp
13:28:40:ICMPv6:Received ICMPv6 packet from 2000:0:0:3::2, type 136
13:28:45:ICMPv6:Received ICMPv6 packet from FE80::203:A0FF:FED6:1400, type 135
13:28:50:ICMPv6:Received ICMPv6 packet from FE80::203:A0FF:FED6:1400, type 136
13:28:55:ICMPv6:Received ICMPv6 packet from FE80::203:A0FF:FED6:1400, type 135
Related Commands
Command
|
Description
|
ipv6 icmp
|
Defines access rules for ICMP messages that terminate on a security appliance interface.
|
ipv6 address
|
Configures an interface with an IPv6 address or addresses.
|
ipv6 nd dad attempts
|
Defines the number of neighbor discovery attempts performed during duplicate address detection.
|
ipv6 route
|
Defines a static entry in the IPv6 routing table.
|
debug iua-proxy
To display individual user authentication (IUA) proxy debug information, use the debug iua-proxy command in privileged EXEC mode. To disable the display of debug information, use the no form of this command.
debug iua-proxy [level]
no debug iua-proxy
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables IUA-proxy debug messages. The show debug command reveals that IUA-proxy debug messages are enabled.
hostname# debug iua-proxy
debug iua-proxy enabled at level 1
debug iua-proxy enabled at level 1
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug kerberos
To display Kerberos authentication debug information, use the debug kerberos command in privileged EXEC mode. To disable the display of debug information, use the no form of this command.
debug kerberos [level]
no debug kerberos
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables Kerberos debug messages. The show debug command reveals that Kerberos debug messages are enabled.
debug kerberos enabled at level 1
debug kerberos enabled at level 1
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug ldap
To display LDAP debug information, use the debug ldap command in privileged EXEC mode. To disable the display of debug information, use the no form of this command.
debug ldap [level]
no debug ldap
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables LDAP debug messages. The show debug command reveals that LDAP debug messages are enabled.
debug ldap enabled at level 1
debug ldap enabled at level 1
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug mac-address-table
To show debug messages for the MAC address table, use the debug mac-address-table command in privileged EXEC mode. To stop showing debug messages for the MAC address table, use the no form of this command.
debug mac-address-table [level]
no debug mac-address-table [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
—
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for the MAC address table:
hostname# debug mac-address-table
Related Commands
Command
|
Description
|
mac-address-table aging-time
|
Sets the timeout for dynamic MAC address entries.
|
mac-address-table static
|
Adds static MAC address entries to the MAC address table.
|
mac-learn
|
Disables MAC address learning.
|
show debug
|
Shows all enabled debuggers.
|
show mac-address-table
|
Shows MAC address table entries.
|
debug menu
To display detailed debug information for specific features, use the debug menu command in privileged EXEC mode.
debug menu
Caution 
The
debug menu command should be used only under the supervision of Cisco technical support staff.
Syntax Description
This command should be used only under the supervision of Cisco technical support staff.
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
This command should be used only under the supervision of Cisco technical support staff.
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug mfib
To display MFIB debug information, use the debug mfib command in privileged EXEC mode. To stop displaying debug information, use the no form of this command.
debug mfib {db | init | mrib | pak | ps | signal} [group]
no debug mfib {db | init | mrib | pak | ps | signal} [group]
Syntax Description
db
|
(Optional) Displays debug information for route database operations.
|
group
|
(Optional) IP address of the multicast group.
|
init
|
(Optional) Displays system initialization activity.
|
mrib
|
(Optional) Displays debug information for communication with MRIB.
|
pak
|
(Optional) Displays debug information for packet forwarding operations.
|
ps
|
(Optional) Displays debug information for process switching operations.
|
signal
|
(Optional) Displays debug information for MFIB signaling to routing protocols.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
—
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example displays MFIB dabase operation debug information:
MFIB IPv4 db debugging enabled
Related Commands
Command
|
Description
|
show mfib
|
Displays MFIB forwarding entries and interfaces.
|
debug mgcp
To display detailed information about MGCP application inspection, use the debug mgcp command in privileged EXEC mode. To disable debugging, Use the no form of this command.
debug mgcp {messages | parser | sessions}
no debug mgcp {messages | parser | sessions}
messages
|
Displays debug information about MGCP messages.
|
parser
|
Displays debug information for parsing MGCP messages.
|
sessions
|
Displays debug information about MGCP sessions.
|
Defaults
All options are enabled.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
The debug mgcp command displays detailed information about mgcp inspection. The no debug all or undebug all commands turn off all enabled debugs.
Examples
The following example enables the display of detailed information about MGCP application inspection:
Related Commands
Commands
|
Description
|
class-map
|
Defines the traffic class to which to apply security actions.
|
inspect mgcp
|
Enables MGCP application inspection.
|
mgcp-map
|
Defines an MGCP map and enables MGCP map configuration mode.
|
show mgcp
|
Displays information about MGCP sessions established through the security appliance.
|
show conn
|
Displays the connection state for different connection types.
|
debug module-boot
To show debug messages about the SSM booting process, use the debug module-boot command in privileged EXEC mode. To stop showing debug messages for the SSM booting process, use the no form of this command.
debug module-boot [level]
no debug module-boot [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
—
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for the SSM booting process:
hostname# debug module-boot
Related Commands
Command
|
Description
|
hw-module module recover
|
Recovers an intelligent SSM by loading a recovery image from a TFTP server.
|
hw-module module reset
|
Shuts down an SSM and performs a hardware reset.
|
hw-module module reload
|
Reloads the intelligent SSM software.
|
hw-module module shutdown
|
Shuts down the SSM software in preparation for being powered off without losing configuration data.
|
show module
|
Shows SSM information.
|
debug mrib
To display MRIB debug information, use the debug mrib command in privileged EXEC mode. To stop the display of debug information, use the no form of this command.
debug mrib {client | io | route [group] | table}
no debug mrib {client | io | route [group] | table}
Syntax Description
client
|
Enables debugging for MRIB client management activity.
|
io
|
Enables debugging of MRIB I/O events.
|
route
|
Enables debugging of MRIB routing entry activity.
|
group
|
Enables debugging of MRIB routing entry activity for the specified group.
|
table
|
Enables debugging of MRIB table management activity.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
—
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example shows how to enable debugging of MRIB I/O events:
IPv4 MRIB io debugging is on
Related Commands
Command
|
Description
|
show mrib client
|
Displays information about the MRIB client connections.
|
show mrib route
|
Displays MRIB table entries.
|
debug ntdomain
To display NT domain authentication debug information, use the debug ntdomain command in privileged EXEC mode. To disable the display of NT domain debug information, use the no form of this command.
debug ntdomain [level]
no debug ntdomain
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables NT domain debug messages. The show debug command reveals that NT domain debug messages are enabled.
debug ntdomain enabled at level 1
debug ntdomain enabled at level 1
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug ntp
To show debug messages for NTP, use the debug ntp command in privileged EXEC mode. To stop showing debug messages for NTP, use the no form of this command.
debug ntp {adjust | authentication | events | loopfilter | packets | params | select | sync | validity}
no debug ntp {adjust | authentication | events | loopfilter | packets | params | select | sync |
validity}
Syntax Description
adjust
|
Shows messages about NTP clock adjustments.
|
authentication
|
Shows messages about NTP authentication.
|
events
|
Shows messages about NTP events.
|
loopfilter
|
Shows messages about NTP loop filter.
|
packets
|
Shows messages about NTP packets.
|
params
|
Shows messages about NTP clock parameters.
|
select
|
Shows messages about NTP clock selection.
|
sync
|
Shows messages about NTP clock synchronization.
|
validity
|
Shows messages about NTP peer clock validity.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for NTP:
hostname# debug ntp events
Related Commands
Command
|
Description
|
ntp authenticate
|
Enables NTP authentication.
|
ntp server
|
Identifies an NTP server.
|
show debug
|
Shows all enabled debuggers.
|
show ntp associations
|
Shows the NTP servers with which the security appliance is associated.
|
show ntp status
|
Shows the status of the NTP association.
|
debug ospf
To display debug information about the OSPF routing processes, use the debug ospf command in privileged EXEC mode.
debug ospf [adj | database-timer | events | flood | lsa-generation | packet | retransmission | spf
[external | inter | intra] | tree]
no debug ospf [adj | database-timer | events | flood | lsa-generation | packet | retransmission |
spf [external | inter | intra] | tree]
Syntax Description
adj
|
(Optional) Enables the debugging of OSPF adjacency events.
|
database-timer
|
(Optional) Enables the debugging of OSPF timer events.
|
events
|
(Optional) Enables the debugging of OSPF events.
|
external
|
(Optional) Limits SPF debugging to external events.
|
flood
|
(Optional) Enables the debugging of OSPF flooding.
|
inter
|
(Optional) Limits SPF debugging to inter-area events.
|
intra
|
(Optional) Limits SPF debugging to intra-area events.
|
lsa-generation
|
(Optional) Enables the debugging of OSPF summary LSA generation.
|
packet
|
(Optional) Enables the debugging of received OSPF packets.
|
retransmission
|
(Optional) Enables the debugging of OSPF retransmission events.
|
spf
|
(Optional) Enables the debugging of OSPF shortest path first calculations. You can limit the SPF debug information by using the external, inter, and intra keywords.
|
tree
|
(Optional) Enables the debugging of OSPF database events.
|
Defaults
Displays all OSPF debug information if no keyword is provided.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
—
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following is sample output from the debug ospf events command:
hostname# debug ospf events
ospf event debugging is on
OSPF:hello with invalid timers on interface Ethernet0
hello interval received 10 configured 10
net mask received 255.255.255.0 configured 255.255.255.0
dead interval received 40 configured 30
Related Commands
Command
|
Description
|
show ospf
|
Displays general information about the OSPF routing process.
|
debug parser cache
To display CLI parser debug information, use the debug parser cache command in privileged EXEC mode. To disable the display of CLI parser debug information, use the no form of this command.
debug parser cache [level]
no debug parser cache
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables CLI parser debug messages. The show debug command reveals the current debug configuration. The CLI parser debug messages appear before and after the output of the show debug command.
hostname# debug parser cache
debug parser cache enabled at level 1
parser cache: try to match 'show debug' in exec mode
debug parser cache enabled at level 1
parser cache: hit at index 8
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug pim
To display PI M debug information, use the debug pim command in privileged EXEC mode. To stop displaying debug information, use the no form of this command.
debug pim [df-election [interface if_name | rp rp] | group group | interface if_name | neighbor]
no debug pim [df-election [interface if_name | rp rp] | group group | interface if_name |
neighbor]
Syntax Description
df-election
|
(Optional) Displays debug messages for PIM bidirectional DF-election message processing.
|
group group
|
(Optional) Displays debug information for the specified group. The value for group can be one of the following:
• Name of the multicast group, as defined in the DNS hosts table or with the domain ipv4 host command.
• IP address of the multicast group. This is a multicast IP address in four-part dotted-decimal notation.
|
interface if_name
|
(Optional) When used with the df-election keyword, it limits the DF election debug display to information for the specified interface.
When used without the df-election keyword, displays PIM error messages for the specified interface.
Note The debug pim interface command does not display PIM protocol activity messages; it only displays error messages. To see debug information for PIM protocol activity, use the debug pim command without the interface keyword. You can use the group keyword to limit the display to the specified multicast group.
|
neighbor
|
(Optional) Displays only the sent/received PIM hello messages.
|
rp rp
|
(Optional) Can be either one of the following:
• Name of the RP, as defined in the Domain Name System (DNS) hosts table or with the domain ipv4 host command.
• IP address of the RP. This is a multicast IP address in four-part dotted-decimal notation.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
—
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Logs PIM packets received and transmitted and also PIM-related events.
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following is sample output from the debug pim command:
PIM: Received Join/Prune on Ethernet1 from 172.24.37.33
PIM: Received Join/Prune on Ethernet1 from 172.24.37.33
PIM: Received Join/Prune on Tunnel0 from 10.3.84.1
PIM: Received Join/Prune on Ethernet1 from 172.24.37.33
PIM: Received Join/Prune on Ethernet1 from 172.24.37.33
PIM: Received RP-Reachable on Ethernet1 from 172.16.20.31
PIM: Update RP expiration timer for 224.2.0.1
PIM: Forward RP-reachability packet for 224.2.0.1 on Tunnel0
PIM: Received Join/Prune on Ethernet1 from 172.24.37.33
PIM: Prune-list (10.221.196.51/32, 224.2.0.1)
PIM: Set join delay timer to 2 seconds for (10.221.0.0/16, 224.2.0.1) on Ethernet1
PIM: Received Join/Prune on Ethernet1 from 172.24.37.6
PIM: Received Join/Prune on Ethernet1 from 172.24.37.33
PIM: Received Join/Prune on Tunnel0 from 10.3.84.1
PIM: Join-list: (*, 224.2.0.1) RP 172.16.20.31
PIM: Add Tunnel0 to (*, 224.2.0.1), Forward state
PIM: Join-list: (10.0.0.0/8, 224.2.0.1)
PIM: Add Tunnel0 to (10.0.0.0/8, 224.2.0.1), Forward state
PIM: Join-list: (10.4.0.0/16, 224.2.0.1)
PIM: Prune-list (172.24.84.16/28, 224.2.0.1) RP-bit set RP 172.24.84.16
PIM: Send Prune on Ethernet1 to 172.24.37.6 for (172.24.84.16/28, 224.2.0.1), RP
PIM: For RP, Prune-list: 10.9.0.0/16
PIM: For RP, Prune-list: 10.16.0.0/16
PIM: For RP, Prune-list: 10.49.0.0/16
PIM: For RP, Prune-list: 10.84.0.0/16
PIM: For RP, Prune-list: 10.146.0.0/16
PIM: For 10.3.84.1, Join-list: 172.24.84.16/28
PIM: Send periodic Join/Prune to RP via 172.24.37.6 (Ethernet1)
Related Commands
Command
|
Description
|
show pim group-map
|
Displays group-to-protocol mapping table.
|
show pim interface
|
Displays interface-specific information for PIM.
|
show pim neighbor
|
Displays entries in the PIM neighbor table.
|
debug pix pkt2pc
To show debug messages that trace packets sent to the uauth code and that trace the event where the uauth proxy session is cut through to the data path, use the debug pix pkt2pc command in privileged EXEC mode. To stop showing debug messages, use the no form of this command.
debug pix pkt2pc
no debug pix pkt2pc
Syntax Description
This command has no arguments or keywords.
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages that trace packets sent to the uauth code and that trace the event where the uauth proxy session is cut through to the data path:
hostname# debug pix pkt2pc
Related Commands
Command
|
Description
|
debug pix process
|
Shows debug messages for xlate and secondary connections processing.
|
show debug
|
Shows all enabled debuggers.
|
debug pix process
To show debug messages for xlate and secondary connections processing, use the debug pix process command in privileged EXEC mode. To stop showing debug messages, use the no form of this command.
debug pix process
no debug pix process
Syntax Description
This command has no arguments or keywords.
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for xlate and secondary connections processing:
hostname# debug pix process
Related Commands
Command
|
Description
|
debug pix pkt2pc
|
Shows debug messages that trace packets sent to the uauth code and that trace the event where the uauth proxy session is cut through to the data path.
|
show debug
|
Shows all enabled debuggers.
|
debug pptp
To show debug messages for PPTP, use the debug pptp command in privileged EXEC mode. To stop showing debug messages for PPTP, use the no form of this command.
debug pptp [level]
no debug pptp [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
To see the current debug command settings, enter the show debug command. To stop the debug output, enter the no debug command. To stop all debug messages from being displayed, enter the no debug all command.
Note
Enabling the debug pptp command may slow down traffic on busy networks.
Examples
The following example enables debug messages at the default level (1) for PPTP application inspection:
Related Commands
Command
|
Description
|
class-map
|
Defines the traffic class to which to apply security actions.
|
inspect pptp
|
Enables PPTP application inspection.
|
policy-map
|
Associates a class map with specific security actions.
|
service-policy
|
Applies a policy map to one or more interfaces.
|
debug radius
To show debug messages for AAA, use the debug radius command in privileged EXEC mode. To stop showing RADIUS messages, use the no form of this command.
debug radius [ all | decode | session | user username ] ]
no debug radius
Syntax Description
all
|
(Optional) Show RADIUS debugging messages for all users and sessions, including decoded RADIUS messages.
|
decode
|
(Optional) Show decoded content of RADIUS messages. Content of all RADIUS packets display, including hexadecimal values and the decoded, eye-readable versions of these values.
|
session
|
(Optional) Show session-related RADIUS messages. Packet types for sent and received RADIUS messages display but not the packet content.
|
user
|
(Optional) Show RADIUS debugging messages for a specific user.
|
username
|
Specifies the user whose messages you want to see. Valid with the user keyword only.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
The debug radius command displays detailed information about RADIUS messaging between the security appliance and a RADIUS AAA server. The no debug all or undebug all commands turn off all enabled debugs.
Examples
The following example shows decoded RADIUS messages, which happen to be accounting packets:
hostname(config)# debug radius decode
hostname(config)# RADIUS packet decode (accounting request)
--------------------------------------
Raw packet data (length = 216).....
Radius: Identifier = 105 (0x69)
Radius: Length = 216 (0x00D8)
Radius: Vector: 842E0E99F44C00C05A0A19AB88A81312
Radius: Type = 40 (0x28) Acct-Status-Type
Radius: Length = 6 (0x06)
Radius: Value (Hex) = 0x2
Radius: Type = 5 (0x05) NAS-Port
Radius: Length = 6 (0x06)
Radius: Value (Hex) = 0x1
Radius: Type = 4 (0x04) NAS-IP-Address
Radius: Length = 6 (0x06)
Radius: Value (IP Address) = 10.1.1.1 (0x0A010101)
Radius: Type = 14 (0x0E) Login-IP-Host
Radius: Length = 6 (0x06)
Radius: Value (IP Address) = 10.2.0.50 (0xD0FE1291)
Radius: Type = 16 (0x10) Login-TCP-Port
Radius: Length = 6 (0x06)
Radius: Value (Hex) = 0x50
Radius: Type = 44 (0x2C) Acct-Session-Id
Radius: Length = 12 (0x0C)
30 78 31 33 30 31 32 39 66 65 | 0x130129fe
Radius: Type = 1 (0x01) User-Name
Radius: Length = 9 (0x09)
62 72 6f 77 73 65 72 | browser
Radius: Type = 46 (0x2E) Acct-Session-Time
Radius: Length = 6 (0x06)
Radius: Value (Hex) = 0x0
Radius: Type = 42 (0x2A) Acct-Input-Octets
Radius: Length = 6 (0x06)
Radius: Value (Hex) = 0x256D
Radius: Type = 43 (0x2B) Acct-Output-Octets
Radius: Length = 6 (0x06)
Radius: Value (Hex) = 0x3E1
Radius: Type = 26 (0x1A) Vendor-Specific
Radius: Length = 30 (0x1E)
Radius: Vendor ID = 9 (0x00000009)
Radius: Type = 1 (0x01) Cisco-AV-pair
Radius: Length = 24 (0x18)
69 70 3a 73 6f 75 72 63 65 2d 69 70 3d 31 30 2e | ip:source-ip=10.
31 2e 31 2e 31 30 | 1.1.10
Radius: Type = 26 (0x1A) Vendor-Specific
Radius: Length = 27 (0x1B)
Radius: Vendor ID = 9 (0x00000009)
Radius: Type = 1 (0x01) Cisco-AV-pair
Radius: Length = 21 (0x15)
69 70 3a 73 6f 75 72 63 65 2d 70 6f 72 74 3d 33 | ip:source-port=3
Radius: Type = 26 (0x1A) Vendor-Specific
Radius: Length = 40 (0x28)
Radius: Vendor ID = 9 (0x00000009)
Radius: Type = 1 (0x01) Cisco-AV-pair
Radius: Length = 34 (0x22)
69 70 3a 64 65 73 74 69 6e 61 74 69 6f 6e 2d 69 | ip:destination-i
70 3d 32 30 38 2e 32 35 34 2e 31 38 2e 31 34 35 | p=10.2.0.50
Radius: Type = 26 (0x1A) Vendor-Specific
Radius: Length = 30 (0x1E)
Radius: Vendor ID = 9 (0x00000009)
Radius: Type = 1 (0x01) Cisco-AV-pair
Radius: Length = 24 (0x18)
69 70 3a 64 65 73 74 69 6e 61 74 69 6f 6e 2d 70 | ip:destination-p
6f 72 74 3d 38 30 | ort=80
Related Commands
Command
|
Description
|
show running-config
|
Displays the configuration that is running on the security appliance.
|
debug rip
To display debug information for RIP, use the debug rip command in privileged EXEC mode. To disable the debug information display, use the no form of this command.
debug rip
no debug rip
Syntax Description
This command has no arguments or keywords.
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
—
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables level 1 debugging of RIP:
debug rip enabled at level 1
Related Commands
Command
|
Description
|
clear configure rip
|
Clears all RIP commands from the running configuration.
|
rip
|
Configures RIP on the specified interface.
|
show running-config rip
|
Displays the RIP commands in the running configuration.
|
debug rtsp
To show debug messages for RTSP application inspection, use the debug rtsp command in privileged EXEC mode. To stop showing debug messages for RTSP application inspection, use the no form of this command.
debug rtsp [level]
no debug rtsp [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
To see the current debug command settings, enter the show debug command. To stop the debug output, enter the no debug command. To stop all debug messages from being displayed, enter the no debug all command.
Note
Enabling the debug rtsp command may slow down traffic on busy networks.
Examples
The following example enables debug messages at the default level (1) for RTSP application inspection:
Related Commands
Command
|
Description
|
class-map
|
Defines the traffic class to which to apply security actions.
|
inspect rtsp
|
Enables RTSP application inspection.
|
policy-map
|
Associates a class map with specific security actions.
|
service-policy
|
Applies a policy map to one or more interfaces.
|
debug sdi
To display SDI authentication debug information, use the debug sdi command in privileged EXEC mode. To disable the display of SDI debug information, use the no form of this command.
debug sdi [level]
no debug sdi
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables SDI debug messages. The show debug command reveals that SDI debug messages are enabled.
debug sdi enabled at level 1
debug sdi enabled at level 1
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug sequence
To add a sequence number to the beginning of all debug messages, use the debug sequence command in privileged EXEC mode. To disable the use of debug sequence numbers, use the no form of this command.
debug sequence [level]
no debug sequence
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The defaults are as follows:
•
Debug message sequence numbers are disabled.
•
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables sequence numbers in debug messages. The debug parser cache command enables CLI parser debug messages. The show debug command reveals the current debug configuration. The CLI parser debug messages shown include sequence numbers before each message.
debug sequence enabled at level 1
hostname# debug parser cache
debug parser cache enabled at level 1
0: parser cache: try to match 'show debug' in exec mode
debug parser cache enabled at level 1
debug sequence enabled at level 1
1: parser cache: hit at index 8
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug session-command
To show debug messages for a session to an SSM, use the debug session-command command in privileged EXEC mode. To stop showing debug messages for sessions, use the no form of this command.
debug session-command [level]
no debug session-command [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
—
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Using debug commands might slow down traffic on busy networks.
Examples
The following example enables debug messages for sessions:
hostname# debug session-command
Related Commands
Command
|
Description
|
session
|
Sessions to an SSM.
|
debug sip
To show debug messages for SIP application inspection, use the debug sip command in privileged EXEC mode. To stop showing debug messages for SIP application inspection, use the no form of this command.
debug sip [level]
no debug sip [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
To see the current debug command settings, enter the show debug command. To stop the debug output, enter the no debug command. To stop all debug messages from being displayed, enter the no debug all command.
Note
Enabling the debug sip command may slow down traffic on busy networks.
Examples
The following example enables debug messages at the default level (1) for SIP application inspection:
Related Commands
Command
|
Description
|
class-map
|
Defines the traffic class to which to apply security actions.
|
inspect sip
|
Enables SIP application inspection.
|
show conn
|
Displays the connection state for different connection types.
|
show sip
|
Displays information about SIP sessions established through the security appliance.
|
timeout
|
Sets the maximum idle time duration for different protocols and session types.
|
debug skinny
To show debug messages for SCCP (Skinny) application inspection, use the debug skinny command in privileged EXEC mode. To stop showing debug messages for SCCP application inspection, use the no form of this command.
debug skinny [level]
no debug skinny [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
To see the current debug command settings, enter the show debug command. To stop the debug output, enter the no debug command. To stop all debug messages from being displayed, enter the no debug all command.
Note
Enabling the debug skinny command may slow down traffic on busy networks.
Examples
The following example enables debug messages at the default level (1) for SCCP application inspection:
Related Commands
Command
|
Description
|
class-map
|
Defines the traffic class to which to apply security actions.
|
inspect skinny
|
Enables SCCP application inspection.
|
show skinny
|
Displays information about SCCP sessions established through the security appliance.
|
show conn
|
Displays the connection state for different connection types.
|
timeout
|
Sets the maximum idle time duration for different protocols and session types.
|
debug smtp
To show debug messages for SMTP/ESMTP application inspection, use the debug smtp command in privileged EXEC mode. To stop showing debug messages for SMTP/ESMTP application inspection, use the no form of this command.
debug smtp [level]
no debug smtp [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
To see the current debug command settings, enter the show debug command. To stop the debug output, enter the no debug command. To stop all debug messages from being displayed, enter the no debug all command.
Note
Enabling the debug smtp command may slow down traffic on busy networks.
Examples
The following example enables debug messages at the default level (1) for SMTP/ESMTP application inspection:
Related Commands
Command
|
Description
|
class-map
|
Defines the traffic class to which to apply security actions.
|
inspect esmtp
|
Enables ESMTP application inspection.
|
policy-map
|
Associates a class map with specific security actions.
|
service-policy
|
Applies a policy map to one or more interfaces.
|
show conn
|
Displays the connection state for different connection types, including SMTP.
|
debug sqlnet
To show debug messages for SQL*Net application inspection, use the debug sqlnet command in privileged EXEC mode. To stop showing debug messages for SQL*Net application inspection, use the no form of this command.
debug sqlnet [level]
no debug sqlnet [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
To see the current debug command settings, enter the show debug command. To stop the debug output, enter the no debug command. To stop all debug messages from being displayed, enter the no debug all command.
Note
Enabling the debug sqlnet command may slow down traffic on busy networks.
Examples
The following example enables debug messages at the default level (1) for SQL*Net application inspection:
Related Commands
Command
|
Description
|
class-map
|
Defines the traffic class to which to apply security actions.
|
inspect sqlnet
|
Enables SQL*Net application inspection.
|
policy-map
|
Associates a class map with specific security actions.
|
service-policy
|
Applies a policy map to one or more interfaces.
|
show conn
|
Displays the connection state for different connection types, including SQL*Net.
|
debug ssh
To display debug information and error messages associated with SSH, use the debug ssh command in privileged EXEC mode. To disable the display of debug information, use the no form of this command.
debug ssh [level]
no debug ssh [level]
Syntax Description
level
|
(Optional) Specifies an optional level of debug.
|
Defaults
The default level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following is sample output from the debug ssh 255 command:
debug ssh enabled at level 255
SSH2 0: send: len 64 (includes padlen 17)
SSH2 0: done calc MAC out #239
SSH2 0: send: len 32 (includes padlen 7)
SSH2 0: done calc MAC out #240
SSH2 0: send: len 64 (includes padlen 15)
SSH2 0: done calc MAC out #241
SSH2 0: send: len 32 (includes padlen 16)
SSH2 0: done calc MAC out #242
SSH2 0: send: len 64 (includes padlen 7)
SSH2 0: done calc MAC out #243
SSH2 0: send: len 64 (includes padlen 18)
SSH2 0: done calc MAC out #244
SSH2 0: send: len 64 (includes padlen 8)
SSH2 0: done calc MAC out #245
SSH2 0: send: len 64 (includes padlen 18)
SSH2 0: done calc MAC out #246
SSH2 0: send: len 64 (includes padlen 7)
SSH2 0: done calc MAC out #247
SSH2 0: send: len 64 (includes padlen 18)
SSH2 0: done calc MAC out #248
SSH2 0: send: len 64 (includes padlen 7)
SSH2 0: done calc MAC out #249
SSH2 0: send: len 64 (includes padlen 18)
SSH2 0: done calc MAC out #250
SSH2 0: send: len 64 (includes padlen 8)
SSH2 0: done calc MAC out #251
SSH2 0: send: len 64 (includes padlen 18)
SSH2 0: done calc MAC out #252
SSH2 0: send: len 64 (includes padlen 7)
SSH2 0: done calc MAC out #253
SSH2 0: send: len 64 (includes padlen 18)
SSH2 0: done calc MAC out #254
SSH2 0: send: len 64 (includes padlen 8)
SSH2 0: done calc MAC out #255
SSH2 0: send: len 64 (includes padlen 18)
SSH2 0: done calc MAC out #256
SSH2 0: send: len 64 (includes padlen 7)
SSH2 0: done calc MAC out #257
SSH2 0: send: len 64 (includes padlen 18)
SSH2 0: done calc MAC out #258
Related Commands
Command
|
Description
|
clear configure ssh
|
Clears all SSH commands from the running configuration.
|
show running-config ssh
|
Displays the current SSH commands in the running configuration.
|
show ssh sessions
|
Displays information about active SSH sessions to the security appliance.
|
ssh
|
Allows SSH connectivity to the security appliance from the specified client or network.
|
debug ssl
To display SSL debug information, use the debug ssl command in privileged EXEC mode. To disable the display of SSL debug information, use the no form of this command.
debug ssl {cipher | device} [level]
no debug ssl {cipher | device}
Syntax Description
cipher
|
Display information about the cipher negotiation between the HTTP server and the client.
|
device
|
Displays information about the SSL device including session initiation and ongoing status.
|
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
—
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables SSL debug messages, specifically for cipher negotiation. The show debug command reveals that SSL debug messages are enabled.
hostname# debug ssl cipher
debug ssl cipher enabled at level 1
debug ssl cipher enabled at level 1
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug sunrpc
To show debug messages for RPC application inspection, use the debug sunrpc command in privileged EXEC mode. To stop showing debug messages for RPC application inspection, use the no form of this command.
debug sunrpc [level]
no debug sunrpc [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
To see the current debug command settings, enter the show debug command. To stop the debug output, enter the no debug command. To stop all debug messages from being displayed, enter the no debug all command.
Note
Enabling the debug sunrpc command may slow down traffic on busy networks.
Examples
The following example enables debug messages at the default level (1) for RPC application inspection:
Related Commands
Command
|
Description
|
class-map
|
Defines the traffic class to which to apply security actions.
|
inspect sunrpc
|
Enables Sun RPC application inspection.
|
policy-map
|
Associates a class map with specific security actions.
|
show conn
|
Displays the connection state for different connection types, including RPC.
|
timeout
|
Sets the maximum idle time duration for different protocols and session types.
|
debug tacacs
To display TACACS+ debug information, use the debug tacacs command in privileged EXEC mode. To disable the display of TACACS+ debug information, use the no form of this command.
debug tacacs [session | user username]
no debug tacacs [session | user username]
Syntax Description
session
|
Displays session-related TACACS+ debug messages.
|
user
|
Displays user-specific TACACS+ debug messages. You can display TACACS+ debug messages for only one user at a time.
|
username
|
Specifies the user whose TACACS+ debug messages you want to view.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables TACACS+ debug messages. The show debug command reveals that TACACS+ debug messages are enabled.
hostname# debug tacacs user admin342
debug tacacs user admin342
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug tcp-map
To show debug messages for TCP application inspection maps, use the debug tcp-map command in privileged EXEC mode. To stop showing debug messages for TCP application inspection, use the no form of this command.
debug tcp-map
no debug tcp-map
Syntax Description
This command has no arguments or keywords.
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables debug messages for TCP application inspection maps. The show debug command reveals that debug messages for TCP application inspection maps are enabled.
debug tcp-map enabled at level 1.
debug tcp-map enabled at level 1.
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug timestamps
To add timestamp information to the beginning of all debug messages, use the debug timestamps command in privileged EXEC mode. To disable the use of debug timestamps, use the no form of this command.
debug timestamps [level]
no debug timestamps
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The defaults are as follows:
•
Debug timestamp information is disabled.
•
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables timestamps in debug messages. The debug parser cache command enables CLI parser debug messages. The show debug command reveals the current debug configuration. The CLI parser debug messages shown include timestamps before each message.
hostname# debug timestamps
debug timestamps enabled at level 1
hostname# debug parser cache
debug parser cache enabled at level 1
1982769.770000000: parser cache: try to match 'show debug' in exec mode
1982769.770000000: parser cache: hit at index 8
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug vpn-sessiondb
To display VPN-session database debug information, use the debug vpn-sessiondb command in privileged EXEC mode. To disable the display of VPN-session database debug information, use the no form of this command.
debug vpn-sessiondb [level]
no debug vpn-sessiondb
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Because debugging output is assigned high priority in the CPU process, it can render the system unusable. For this reason, use debug commands only to troubleshoot specific problems or during troubleshooting sessions with Cisco technical support staff. Moreover, it is best to use debug commands during periods of lower network traffic and fewer users. Debugging during these periods decreases the likelihood that increased debug command processing overhead will affect system use.
Examples
The following example enables VPN-session database debug messages. The show debug command reveals that VPN-session database debug messages are enabled.
hostname# debug vpn-sessiondb
debug vpn-sessiondb enabled at level 1
debug vpn-sessiondb enabled at level 1
Related Commands
Command
|
Description
|
show debug
|
Displays current debug configuration.
|
debug xdmcp
To show debug messages for XDMCP application inspection, use the debug xdmcp command in privileged EXEC mode. To stop showing debug messages for XDMCP application inspection, use the no form of this command.
debug xdmcp [level]
no debug xdmcp [level]
Syntax Description
level
|
(Optional) Sets the debug message level to display, between 1 and 255. The default is 1. To display additional messages at higher levels, set the level to a higher number.
|
Defaults
The default value for level is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
To see the current debug command settings, enter the show debug command. To stop the debug output, enter the no debug command. To stop all debug messages from being displayed, enter the no debug all command.
Note
Enabling the debug xdmcp command may slow down traffic on busy networks.
Examples
The following example enables debug messages at the default level (1) for XDMCP application inspection:
Related Commands
Command
|
Description
|
class-map
|
Defines the traffic class to which to apply security actions.
|
inspect xdmcp
|
Enables XDMCP application inspection.
|
policy-map
|
Associates a class map with specific security actions.
|
service-policy
|
Applies a policy map to one or more interfaces.
|
default
To restore default settings for the time-range command absolute and periodic keywords, use the default command in time-range configuration mode.
default {absolute | periodic days-of-the-week time to [days-of-the-week] time}
Syntax Description
absolute
|
Defines an absolute time when a time range is in effect.
|
days-of-the-week
|
(Optional) The first occurrence of this argument is the starting day or day of the week that the associated time range is in effect. The second occurrence is the ending day or day of the week the associated statement is in effect.
This argument is any single day or combinations of days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday. Other possible values are:
• daily—Monday through Sunday
• weekdays—Monday through Friday
• weekend—Saturday and Sunday
If the ending days of the week are the same as the starting days of the week, you can omit them.
|
periodic
|
Specifies a recurring (weekly) time range for functions that support the time-range feature.
|
time
|
Specifies the time in the format HH:MM. For example, 8:00 is 8:00 a.m. and 20:00 is 8:00 p.m.
|
to
|
Entry of the to keyword is required to complete the range "from start-time to end-time."
|
Defaults
No default behaviors or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Time-range configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
If the end days-of-the-week value is the same as the start value, you can omit them.
If a time-range command has both absolute and periodic values specified, then the periodic commands are evaluated only after the absolute start time is reached, and are not further evaluated after the absolute end time is reached.
The time-range feature relies on the system clock of the security appliance; however, the feature works best with NTP synchronization.
Examples
The following example shows how to restore the default behavior of the absolute keyword:
hostname(config-time-range)# default absolute
Related Commands
Command
|
Description
|
absolute
|
Defines an absolute time when a time range is in effect.
|
periodic
|
Specifies a recurring (weekly) time range for functions that support the time-range feature.
|
time-range
|
Defines access control to the security appliance based on time.
|
default (crl configure)
To return all CRL parameters to their system default values, use the default command in crl configure configuration mode. The crl configure configuration mode is accessible from the crypto ca trustpoint configuration mode. These parameters are used only when the LDAP server requires them.
default
Syntax Description
This command has no arguments or keywords.
Defaults
No default behaviors or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Crl configure configuration
|
·
|
|
·
|
|
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Invocations of this command do not become part of the active configuration.
Examples
The following example enters ca-crl configuration mode, and returns CRL command values to their defaults:
hostname(config)# crypto ca trustpoint central
hostname(ca-trustpoint)# crl configure
hostname(ca-crl)# default
Related Commands
Command
|
Description
|
crl configure
|
Enters crl configure configuration mode.
|
crypto ca trustpoint
|
Enters trustpoint configuration mode.
|
protocol ldap
|
Specifies LDAP as a retrieval method for CRLs.
|
default (time-range)
To restore default settings for the absolute and periodic commands, use the default command in time-range configuration mode.
default {absolute | periodic days-of-the-week time to [days-of-the-week] time}
Syntax Description
absolute
|
Defines an absolute time when a time range is in effect.
|
days-of-the-week
|
The first occurrence of this argument is the starting day or day of the week that the associated time range is in effect. The second occurrence is the ending day or day of the week the associated statement is in effect.
This argument is any single day or combinations of days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday. Other possible values are:
• daily—Monday through Sunday
• weekdays—Monday through Friday
• weekend—Saturday and Sunday
If the ending days of the week are the same as the starting days of the week, you can omit them.
|
periodic
|
Specifies a recurring (weekly) time range for functions that support the time-range feature.
|
time
|
Specifies the time in the format HH:MM. For example, 8:00 is 8:00 a.m. and 20:00 is 8:00 p.m.
|
to
|
Entry of the to keyword is required to complete the range "from start-time to end-time."
|
Defaults
There are no default settings for this command.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Time-range configuration
|
·
|
·
|
·
|
·
|
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
If the end days-of-the-week value is the same as the start value, you can omit them.
If a time-range command has both absolute and periodic values specified, then the periodic commands are evaluated only after the absolute start time is reached, and are not further evaluated after the absolute end time is reached.
The time-range feature relies on the system clock of the security appliance; however, the feature works best with NTP synchronization.
Examples
The following example shows how to restore the default behavior of the absolute keyword:
hostname(config-time-range)# default absolute
Related Commands
Command
|
Description
|
absolute
|
Defines an absolute time when a time range is in effect.
|
periodic
|
Specifies a recurring (weekly) time range for functions that support the time-range feature.
|
time-range
|
Defines access control to the security appliance based on time.
|
default enrollment
To return all enrollment parameters to their system default values, use the default enrollment command in crypto ca trustpoint configuration mode.
default enrollment
Syntax Description
This command has no arguments or keywords.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Crypto ca trustpoint configuration
|
·
|
·
|
·
|
·
|
·
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Invocations of this command do not become part of the active configuration.
Examples
The following example enters crypto ca trustpoint configuration mode for trustpoint central, and returns all enrollment parameters to their default values within trustpoint central:
hostname<config># crypto ca trustpoint central
hostname<ca-trustpoint># default enrollment
Related Commands
Command
|
Description
|
clear configure crypto ca trustpoint
|
Removes all trustpoints.
|
crl configure
|
Enters crl configuration mode.
|
crypto ca trustpoint
|
Enters trustpoint configuration mode.
|
default-domain
To set a default domain name for users of the group policy, use the default-domain command in group-policy configuration mode. To delete a domain name, use the no form of this command.
To prevent users from inheriting a domain name, use the default-domain none command.
The security appliance passes the default domain name to the IPSec client to append to DNS queries that omit the domain field. This domain name applies only to tunneled packets. When there are no default domain names, users inherit the default domain name in the default group policy.
default-domain {value domain-name | none}
no default-domain [domain-name]
Syntax Description
none
|
Indicates that there is no default domain name. Sets a default domain name with a null value, thereby disallowing a default domain name. Prevents inheriting a default domain name from a default or specified group policy.
|
value domain-name
|
Identifies the default domain name for the group.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Group-policy
|
•
|
—
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
You can use only alphanumeric characters, hyphens (-), and periods (.) in default domain names.
Examples
The following example shows how to set a default domain name of FirstDomain for the group policy named FirstGroup:
hostname(config)# group-policy FirstGroup attributes
hostname(config-group-policy)# default-domain value FirstDomain
Related Commands
Command
|
Description
|
split-dns
|
Provides a list of domains to be resolved through the split tunnel.
|
split-tunnel-network-list
|
Identifies the access list the security appliance uses to distinguish networks that require tunneling and those that do not.
|
split-tunnel-policy
|
Lets an IPSec client conditionally direct packets over an IPSec tunnel in encrypted form, or to a network interface in cleartext form
|
default-group-policy
To specify the set of attributes that the user inherits by default, use the default-group-policy command in tunnel-group general-attributes configuration mode. To eliminate a default group policy name, use the no form of this command.
default-group-policy group-name
no default-group-policy group-name
Syntax Description
group-name
|
Specifies the name of the default group.
|
Defaults
The default group name is DfltGrpPolicy.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Tunnel-group general attributes configuration
|
•
|
|
•
|
|
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
The default group policy DfltGrpPolicy comes with the initial configuration of the security appliance. You can apply this attribute to all tunnel-group types.
Examples
The following example entered in config-general configuration mode, specifies a set of attributes for users to inherit by default for an IPSec LAN-to-LAN tunnel group named standard-policy. This set of commands defines the accounting server, the authentication server, the authorization server and the address pools.
hostname(config)# tunnel-group standard-policy type ipsec-ra
hostname(config)# tunnel-group standard-policy general-attributes
hostname(config-general)# default-group-policy first-policy
hostname(config-general)# accounting-server-group aaa-server123
hostname(config-general)# address-pool (inside) addrpool1 addrpool2 addrpool3
hostname(config-general)# authentication-server-group aaa-server456
hostname(config-general)# authorization-server-group aaa-server78
hostname(config-general)#
Related Commands
Command
|
Description
|
clear-configure tunnel-group
|
Clears all configured tunnel groups.
|
group-policy
|
Creates or edits a group policy
|
show running-config tunnel group
|
Shows the tunnel group configuration for all tunnel groups or for a particular tunnel group.
|
tunnel-group-map default group
|
Associates the certificate map entries created using the crypto ca certificate map command with tunnel groups.
|
default-group-policy (webvpn)
To specify the name of the group policy to use when the WebVPN or e-mail proxy configuration does not specify a group policy, use the default-group-policy command. WebVPN, IMAP4S, POP3S, and SMTPS sessions require either a specified or a default group policy. For WebVPN, use this command in webvpn mode. For e-mail proxy, use this command in the applicable e-mail proxy mode. To remove the attribute from the configuration, use the no version of this command.
default-group-policy groupname
no default-group-policy
Syntax Description
groupname
|
Identifies the previously configured group policy to use as the default group policy. Use the group-policy command in configuration mode to configure a group policy.
|
Defaults
A default group policy, named DfltGrpPolicy, always exists on the security appliance. This default-group-policy command lets you substitute a group policy that you create as the default group policy for WebVPN and e-mail proxy sessions. An alternative is to edit the DfltGrpPolicy.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Webvpn
|
•
|
—
|
•
|
—
|
—
|
Imap4s
|
•
|
—
|
•
|
—
|
—
|
Pop3s
|
•
|
—
|
•
|
—
|
—
|
Smtps
|
•
|
—
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
You can edit, but not delete the system DefaultGroupPolicy. It has the following AVPs:
Attribute
|
Default Value
|
wins-server
|
none
|
dns-server
|
none
|
dhcp-network-scope
|
none
|
vpn-access-hours
|
unrestricted
|
vpn-simultaneous-logins
|
3
|
vpn-idle-timeout
|
30 minutes
|
vpn-session-timeout
|
none
|
vpn-filter
|
none
|
vpn-tunnel-protocol
|
WebVPN
|
ip-comp
|
disable
|
re-xauth
|
disable
|
group-lock
|
none
|
pfs
|
disable
|
client-access-rules
|
none
|
banner
|
none
|
password-storage
|
disabled
|
ipsec-udp
|
disabled
|
ipsec-udp-port
|
0
|
backup-servers
|
keep-client-config
|
split-tunnel-policy
|
tunnelall
|
split-tunnel-network-list
|
none
|
default-domain
|
none
|
split-dns
|
none
|
intercept-dhcp
|
disable
|
client-firewall
|
none
|
secure-unit-authentication
|
disabled
|
user-authentication
|
disabled
|
user-authentication-idle-timeout
|
none
|
ip-phone-bypass
|
disabled
|
leap-bypass
|
disabled
|
nem
|
disabled
|
webvpn attributes:
|
|
filter
|
none
|
functions
|
disabled
|
homepage
|
none
|
html-content-filter
|
none
|
port-forward
|
disabled
|
port-forward-name
|
none
|
url-list
|
mpme
|
Examples
The following example shows how to specify a default group policy called WebVPN7 for WebVPN:
hostname(config-webvpn)# default-group-policy WebVPN7
default-idle-timeout
To set a default idle timeout value for WebVPN users, use the default-idle-timeout command in webvpn mode. To remove the default idle timeout value from the configuration and reset the default, use the no form of this command.
The default idle timeout prevents stale sessions.
default-idle-timeout seconds
no default-idle-timeout
Syntax Description
seconds
|
Specifies the number of seconds for the idle time out. The minimum is 60 seconds, maximum is 1 day (86400 seconds).
|
Defaults
1800 seconds (30 minutes).
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Webvpn
|
•
|
—
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
The security appliance uses the value you set here if there is no idle timeout defined for a user, if the value is 0, or if the value does not fall into the valid range.
We recommend that you set this command to a short time period. This is because a browser set to disable cookies (or one that prompts for cookies and then denies them) can result in a user not connecting but nevertheless appearing in the sessions database. If the maximum number of connections permitted is set to one (vpn-simultaneous-logins command), the user cannot log back in because the database indicates that the maximum number of connections already exists. Setting a low idle timeout removes such phantom sessions quickly, and lets a user log in again.
Examples
The following example shows how to set the default idle timeout to 1200 seconds (20 minutes):
hostname(config-webvpn)# default-idle-timeout 1200
Related Commands
Command
|
Description
|
vpn-simultaneous-logins
|
Sets the maximum number of simultaneous VPN sessions permitted. Use in group-policy or username mode.
|
default-information originate
To generate a default external route into an OSPF routing domain, use the default-information originate command in router configuration mode. To disable this feature, use the no form of this command.
default-information originate [always] [metric value] [metric-type {1 | 2}] [route-map name]
no default-information originate [[always] [metric value] [metric-type {1 | 2}] [route-map
name]]
Syntax Description
always
|
(Optional) Always advertises the default route regardless of whether the software has a default route.
|
metric value
|
(Optional) Specifies the OSPF default metric value from 0 to 16777214.
|
metric-type {1 | 2}
|
(Optional) External link type associated with the default route advertised into the OSPF routing domain. Valid values are as follows:
• 1—Type 1 external route.
• 2—Type 2 external route.
|
route-map name
|
(Optional) Name of the route map to apply.
|
Defaults
The default values are as follows:
•
metric value is 1.
•
metric-type is 2.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Router configuration
|
•
|
—
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Using the no form of this command with optional keywords and arguments only removes the optional information from the command. For example, entering no default-information originate metric 3 removes the metric 3 option from the command in the running configuration. To remove the complete command from the running configuration, use the no form of the command without any options: no default-information originate.
Examples
The following example shows how to use the default-information originate command with an optional metric and metric type:
hostname(config-router)# default-information originate always metric 3 metric-type 2
Related Commands
Command
|
Description
|
router ospf
|
Enters router configuration mode.
|
show running-config router
|
Displays the commands in the global router configuration.
|
delete
To delete a file in the disk partition, use the delete command in privileged EXEC mode.
delete [/noconfirm] [/recursive] [disk0: | disk1: | flash:]filename
Syntax Description
/noconfirm
|
(Optional) Specifies not to prompt for confirmation.
|
/recursive
|
(Optional) Deletes the specified file recursively in all subdirectories.
|
disk0:
|
(Optional) Specifies the internal Flash memory, followed by a colon.
|
disk1:
|
(Optional) Specifies the external Flash memory card, followed by a colon.
|
filename
|
Specifies the name of the file to delete.
|
flash:
|
Specifies the nonremovable internal Flash, followed by a colon. In the ASA 5500 series, the flash keyword is aliased to disk0.
|
Defaults
If you do not specify a directory, the directory is the current working directory by default.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
—
|
•
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
The file is deleted from the current working directory if a path is not specified. Wildcards are supported when deleting files. When deleting files, you are prompted with the filename and you must confirm the deletion.
The following example shows how to delete a file named test.cfg in the current working directory:
hostname# delete test.cfg
Related Commands
Command
|
Description
|
cd
|
Changes the current working directory to the one specified.
|
rmdir
|
Removes a file or directory.
|
show file
|
Displays the specified file.
|
deny version
To deny a specific version of SNMP traffic, use the deny version command in SNMP map configuration mode, which is accessible by entering the snmp-map command from global configuration mode. To disable this command, use the no version of the command.
deny version version
deny version version
Syntax Description
version
|
Specifies the version of SNMP traffic that the security appliance drops. The permitted values are 1, 2, 2c, and 3.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
SNMP map configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Use the deny version command to restrict SNMP traffic to specific versions of SNMP. Earlier versions of SNMP were less secure so restricting SNMP traffic to Version 2 may be specified by your security policy. You use the deny version command within an SNMP map, which you configure using the snmp-map command. After creating the SNMP map, you enable the map using the inspect snmp command and then apply it to one or more interfaces using the service-policy command.
Examples
The following example shows how to identify SNMP traffic, define a SNMP map, define a policy, and apply the policy to the outside interface:
hostname(config)# access-list snmp-acl permit tcp any any eq 161
hostname(config)# access-list snmp-acl permit tcp any any eq 162
hostname(config)# class-map snmp-port
hostname(config-cmap)# match access-list snmp-acl
hostname(config-cmap)# exit
hostname(config)# snmp-map inbound_snmp
hostname(config-snmp-map)# deny version 1
hostname(config-snmp-map)# exit
hostname(config)# policy-map inbound_policy
hostname(config-pmap)# class snmp-port
hostname(config-pmap-c)# inspect snmp inbound_snmp
hostname(config-pmap-c)# exit
hostname(config-pmap)# exit
hostname(config)# service-policy inbound_policy interface outside
Related Commands
Commands
|
Description
|
class-map
|
Defines the traffic class to which to apply security actions.
|
inspect snmp
|
Enable SNMP application inspection.
|
policy-map
|
Associates a class map with specific security actions.
|
snmp-map
|
Defines an SNMP map and enables SNMP map configuration mode.
|
service-policy
|
Applies a policy map to one or more interfaces.
|
description
To add a description for a named configuration unit (for example, for a context or for an object group), use the description command in various configuration modes. To remove the description, use the no form of this command. The description adds helpful notes in your configuration.
description text
no description
Syntax Description
text
|
Sets the description as a text string up to 200 characters in length. If you want to include a question mark (?) in the string, you must type Ctrl-V before typing the question mark so you do not inadvertently invoke CLI help.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Class-map configuration
|
•
|
•
|
•
|
•
|
—
|
Context configuration
|
•
|
•
|
—
|
—
|
•
|
Gtp-map configuration
|
•
|
•
|
•
|
•
|
—
|
Interface configuration
|
•
|
•
|
•
|
•
|
•
|
Object-group configuration
|
•
|
•
|
•
|
•
|
—
|
Policy-map configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was added to several new configuration modes.
|
Examples
The following example adds a description to the "Administration" context configuration:
hostname(config)# context administrator
hostname(config-context)# description This is the admin context.
hostname(config-context)# allocate-interface gigabitethernet0/0.1
hostname(config-context)# allocate-interface gigabitethernet0/1.1
hostname(config-context)# config-url flash://admin.cfg
Related Commands
Command
|
Description
|
class-map
|
Identifies traffic to which you apply actions in the policy-map command.
|
context
|
Creates a security context in the system configuration and enters context configuration mode.
|
gtp-map
|
Controls parameters for the GTP inspection engine.
|
interface
|
Configures an interface and enters interface configuration mode.
|
object-group
|
Identifies traffic to include in the access-list command.
|
policy-map
|
Identifies actions to apply to traffic identified by the class-map command.
|
dhcp-network-scope
To specify the range of IP addresses the security appliance DHCP server should use to assign addresses to users of this group policy, use the dhcp-network-scope command in group-policy configuration mode. To remove the attribute from the running configuration, use the no form of this command. This option allows inheritance of a value from another group policy. To prevent inheriting a value, use the dhcp-network-scope none command.
dhcp-network-scope {ip_address} | none
no dhcp-network-scope
Syntax Description
ip_address
|
Specifies the IP subnetwork the DHCP server should use to assign IP addresses to users of this group policy.
|
none
|
Sets the DHCP subnetwork to a null value, thereby allowing no IP addresses. Prevents inheriting a value from a default or specified group policy.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Group-policy
|
•
|
—
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Examples
The following example shows how to set an IP subnetwork of 10.10.85.0 for the group policy named First Group:
hostname(config)# group-policy FirstGroup attributes
hostname(config-group-policy)# dhcp-network-scope 10.10.85.0
dhcp-server
To configure support for DHCP servers that assign IP addresses to clients as a VPN tunnel is established, use the dhcp-server command in tunnel-group general-attributes configuration mode. To return this command to the default, use the no form of this command.
dhcp-server hostname1 [...hostname10]
no dhcp-server hostname
Syntax Description
hostname1 ...hostname10
|
Specifies the IP address of the DHCP server. You can specify up to 10 DHCP servers.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Tunnel-group general attributes configuration
|
•
|
|
•
|
|
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
You can apply this attribute to IPSec remote access tunnel-group types only.
Examples
The following command entered in config-general configuration mode, adds three DHCP servers (dhcp1, dhcp2, and dhcp3) to the IPSec remote-access tunnel group remotegrp:
hostname(config)# tunnel-group remotegrp type ipsec_ra
hostname(config)# tunnel-group remotegrp general
hostname(config-general)# default-group-policy remotegrp
hostname(config-general)# dhcp-server dhcp1 dhcp2 dhcp3
Related Commands
Command
|
Description
|
clear-configure tunnel-group
|
Clears all configured tunnel groups.
|
show running-config tunnel group
|
Shows the tunnel group configuration for all tunnel groups or for a particular tunnel group.
|
tunnel-group-map default group
|
Associates the certificate map entries created using the crypto ca certificate map command with tunnel groups.
|
dhcpd address
To define the IP address pool used by the DHCP server, use the dhcpd address command in global configuration mode. To remove an existing DHCP address pool, use the no form of this command.
dhcpd address IP_address1[-IP_address2] interface_name
no dhcpd address interface_name
Syntax Description
interface_name
|
Interface the address pool is assigned to.
|
IP_address1
|
Start address of the DHCP address pool.
|
IP_address2
|
End address of the DHCP address pool.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
The dhcpd address ip1[-ip2] interface_name command specifies the DHCP server address pool. The address pool of a security appliance DHCP server must be within the same subnet of the security appliance interface on which it is enabled, and you must specify the associated security appliance interface using interface_name.
The size of the address pool is limited to 256 addresses per pool on the security appliance. If the address pool range is larger than 253 addresses, the netmask of the security appliance interface cannot be a Class C address (for example, 255.255.255.0) and needs to be something larger, for example, 255.255.254.0.
DHCP clients must be physically connected to the subnet of the security appliance DCHP server interface.
The dhcpd address command cannot use interface names with a "-" (dash) character because the "-" character is interpreted as a range specifier instead of as part of the object name.
The no dhcpd address interface_name command removes the DHCP server address pool that you configured for the specified interface.
Refer to the Cisco Security Appliance Command Line Configuration Guide for information on how to implement the DHCP server feature into the security appliance.
Examples
The following example shows how to use the dhcpd address, dhcpd dns, and dhcpd enable interface_name commands to configure an address pool and DNS server for the DHCP clients on the dmz interface of the security appliance:
hostname(config)# dhcpd address 10.0.1.100-10.0.1.108 dmz
hostname(config)# dhcpd dns 209.165.200.226
hostname(config)# dhcpd enable dmz
The following example shows how to configure a DHCP server on the inside interface. It uses the dhcpd address command to assign a pool of 10 IP addresses to the DHCP server on that interface.
hostname(config)# dhcpd address 10.0.1.101-10.0.1.110 inside
hostname(config)# dhcpd dns 198.162.1.2 198.162.1.3
hostname(config)# dhcpd wins 198.162.1.4
hostname(config)# dhcpd lease 3000
hostname(config)# dhcpd ping_timeout 1000
hostname(config)# dhcpd domain example.com
hostname(config)# dhcpd enable inside
Related Commands
Command
|
Description
|
clear configure dhcpd
|
Removes all DHCP server settings.
|
dhcpd enable
|
Enables the DHCP server on the specified interface.
|
show dhcpd
|
Displays DHCP binding, statistic, or state information.
|
show running-config dhcpd
|
Displays the current DHCP server configuration.
|
dhcpd auto_config
To enable the security appliance to automatically configure DNS, WINS and domain name values for the DHCP server based on the values obtained from an interface running a DHCP client, use the dhcpd auto_config command in global configuration mode. To discontinue the automatic configuration of DHCP parameters, use the no form of this command.
dhcpd auto_config client_if_name
no dhcpd auto_config client_if_name
Syntax Description
client_if_name
|
Specifies the interface running the DHCP client that supplies the DNS, WINS, and domain name parameters.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
—
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
If you specify DNS, WINS, or domain name parameters using the CLI commands, then the CLI-configured parameters overwrite the parameters obtained by automatic configuration.
Examples
The following example shows how to configure DHCP on the inside interface. The dhcpd auto_config command is used to pass DNS, WINS, and domain information obtained from the DHCP client on the outside interface to the DHCP clients on the inside interface.
hostname(config)# dhcpd address 10.0.1.101-10.0.1.110 inside
hostname(config)# dhcpd autoconfig outside
hostname(config)# dhcpd enable inside
Related Commands
Command
|
Description
|
clear configure dhcpd
|
Removes all DHCP server settings.
|
dhcpd enable
|
Enables the DHCP server on the specified interface.
|
show ip address dhcp server
|
Displays detailed information about the DHCP options provided by a DHCP server to an interface acting as a DHCP client.
|
show running-config dhcpd
|
Displays the current DHCP server configuration.
|
dhcpd dns
To define the DNS servers for DHCP clients, use the dhcpd dns command in global configuration mode. To clear defined servers, use the no form of this command.
dhcpd dns dnsip1 [dnsip2]
no dhcpd dns [dnsip1 [dnsip2]]
Syntax Description
dnsip1
|
IP address of the primary DNS server for the DHCP client.
|
dnsip2
|
(Optional) IP address of the alternate DNS server for the DHCP client.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
The dhcpd dns command lets you specify the IP address or addresses of the DNS server(s) for the DHCP client. You can specify two DNS servers. The no dhcpd dns command lets you remove the DNS IP address(es) from the configuration.
Examples
The following example shows how to use the dhcpd address, dhcpd dns, and dhcpd enable interface_name commands to configure an address pool and DNS server for the DHCP clients on the dmz interface of the security appliance.
hostname(config)# dhcpd address 10.0.1.100-10.0.1.108 dmz
hostname(config)# dhcpd dns 192.168.1.2
hostname(config)# dhcpd enable dmz
Related Commands
Command
|
Description
|
clear configure dhcpd
|
Removes all DHCP server settings.
|
dhcpd address
|
Specifies the address pool used by the DHCP server on the specified interface.
|
dhcpd enable
|
Enables the DHCP server on the specified interface.
|
dhcpd wins
|
Defines the WINS servers for DHCP clients.
|
show running-config dhcpd
|
Displays the current DHCP server configuration.
|
dhcpd domain
To define the DNS domain name for DHCP clients, use the dhcpd domain command in global configuration mode. To clear the DNS domain name, use the no form of this command.
dhcpd domain domain_name
no dhcpd domain [domain_name]
Syntax Description
domain_name
|
The DNS domain name, for example example.com.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
The dhcpd domain command lets you specify the DNS domain name for the DHCP client. The no dhcpd domain command lets you remove the DNS domain server from the configuration.
Examples
The following example shows how to use the dhcpd domain command to configure the domain name supplied to DHCP clients by the DHCP server on the security appliance:
hostname(config)# dhcpd address 10.0.1.101-10.0.1.110 inside
hostname(config)# dhcpd dns 198.162.1.2 198.162.1.3
hostname(config)# dhcpd wins 198.162.1.4
hostname(config)# dhcpd lease 3000
hostname(config)# dhcpd ping_timeout 1000
hostname(config)# dhcpd domain example.com
hostname(config)# dhcpd enable inside
Related Commands
Command
|
Description
|
clear configure dhcpd
|
Removes all DHCP server settings.
|
show running-config dhcpd
|
Displays the current DHCP server configuration.
|
dhcpd enable
To enable the DHCP server, use the dhcpd enable command in global configuration mode. To disable the DHCP server, use the no form of this command. The DHCP server provides network configuration parameters to DHCP clients. Support for the DHCP server within the security appliance means that the security appliance can use DHCP to configure connected clients.
dhcpd enable interface
no dhcpd enable interface
Syntax Description
interface
|
Specifies the interface on which to enable the DHCP server.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
The dhcpd enable interface command lets you enable the DHCP daemon to listen for the DHCP client requests on the DHCP-enabled interface. The no dhcpd enable command disables the DHCP server feature on the specified interface.
Note
For multiple context mode, you cannot enable the DHCP server on an interface that is used by more than one context (a shared VLAN).
When the security appliance responds to a DHCP client request, it uses the IP address and subnet mask of the interface where the request was received as the IP address and subnet mask of the default gateway in the response.
Note
The security appliance DHCP server daemon does not support clients that are not directly connected to a security appliance interface.
Refer to the Cisco Security Appliance Command Line Configuration Guide for information on how to implement the DHCP server feature into the security appliance.
Examples
The following example shows how to use the dhcpd enable command to enable the DHCP server on the inside interface:
hostname(config)# dhcpd address 10.0.1.101-10.0.1.110 inside
hostname(config)# dhcpd dns 198.162.1.2 198.162.1.3
hostname(config)# dhcpd wins 198.162.1.4
hostname(config)# dhcpd lease 3000
hostname(config)# dhcpd ping_timeout 1000
hostname(config)# dhcpd domain example.com
hostname(config)# dhcpd enable inside
Related Commands
Command
|
Description
|
debug dhcpd
|
Displays debug information for the DHCP server.
|
dhcpd address
|
Specifies the address pool used by the DHCP server on the specified interface.
|
show dhcpd
|
Displays DHCP binding, statistic, or state information.
|
show running-config dhcpd
|
Displays the current DHCP server configuration.
|
dhcpd lease
To specify the DHCP lease length, use the dhcpd lease command in global configuration mode. To restore the default value for the lease, use the no form of this command.
dhcpd lease lease_length
no dhcpd lease [lease_length]
Syntax Description
lease_length
|
Length of the IP address lease, in seconds, granted to the DHCP client from the DHCP server; valid values are from 300 to 1048575 seconds.
|
Defaults
The default lease_length is 3600 seconds.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
The dhcpd lease command lets you specify the length of the lease, in seconds, that is granted to the DHCP client. This lease indicates how long the DHCP client can use the assigned IP address that the DHCP server granted.
The no dhcpd lease command lets you remove the lease length that you specified from the configuration and replaces this value with the default value of 3600 seconds.
Examples
The following example shows how to use the dhcpd lease command to specify the length of the lease of DHCP information for DHCP clients:
hostname(config)# dhcpd address 10.0.1.101-10.0.1.110 inside
hostname(config)# dhcpd dns 198.162.1.2 198.162.1.3
hostname(config)# dhcpd wins 198.162.1.4
hostname(config)# dhcpd lease 3000
hostname(config)# dhcpd ping_timeout 1000
hostname(config)# dhcpd domain example.com
hostname(config)# dhcpd enable inside
Related Commands
Command
|
Description
|
clear configure dhcpd
|
Removes all DHCP server settings.
|
show running-config dhcpd
|
Displays the current DHCP server configuration.
|
dhcpd option
To configure DHCP options, use the dhcpd option command in global configuration mode. To clear the option, use the no form of this command. You can use the dhcpd option command to provide TFTP server information to Cisco IP Phones and routers.
dhcpd option code {ascii string} | {ip IP_address [IP_address]} | {hex hex_string}
no dhcpd option code
Syntax Description
ascii
|
Specifies that the option parameter is an ASCII character string.
|
code
|
A number representing the DHCP option being set. Valid values are 0 to 255.
|
hex
|
Specifies that the option parameter is a hexadecimal string.
|
hex_string
|
Specifies a hexadecimal string with an even number of digits and no spaces. You do not need to use a 0x prefix.
|
ip
|
Specifies that the option parameter is an IP address. You can specify a maximum of two IP addresses with the ip keyword.
|
IP_address
|
Specifies a dotted-decimal IP address.
|
string
|
Specifies an ASCII character string without spaces.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
When a DHCP option request arrives at the security appliance DHCP server, the security appliance places the value or values that are specified by the dhcpd option command in the response to the client.
The dhcpd option 66 and dhcpd option 150 commands specify TFTP servers that Cisco IP Phones and routers can use to download configuration files. Use the commands as follows:
•
dhcpd option 66 ascii string, where string is either the IP address or hostname of the TFTP server. Only one TFTP server can be specified for option 66.
•
dhcpd option 150 ip IP_address [IP_address], where IP_address is the IP address of the TFTP server. You can specify a maximum of two IP addresses for option 150.
Note
The dhcpd option 66 command only takes an ascii parameter, and the dhcpd option 150 only takes an ip parameter.
Use the following guidelines when specifying an IP address for the dhcpd option 66 | 150 commands:
•
If the TFTP server is located on the DHCP server interface, use the local IP address of the TFTP server.
•
If the TFTP server is located on a less secure interface than the DHCP server interface, then general outbound rules apply. Create a group of NAT, global, and access-list entries for the DHCP clients, and use the actual IP address of the TFTP server.
•
If the TFTP server is located on a more secure interface, then general inbound rules apply. Create a group of static and access-list statements for the TFTP server and use the global IP address of the TFTP server.
For information about other DHCP options, refer to RFC2132.
Examples
The following example shows how to specify a TFTP server for DHCP option 66:
hostname(config)# dhcpd option 66 ascii MyTftpServer
Related Commands
Command
|
Description
|
clear configure dhcpd
|
Removes all DHCP server settings.
|
show running-config dhcpd
|
Displays the current DHCP server configuration.
|
dhcpd ping_timeout
To change the default timeout for DHCP ping, use the dhcpd ping_timeout command in global configuration mode. To return to the default value, use the no form of this command. To avoid address conflicts, the DHCP server sends two ICMP ping packets to an address before assigning that address to a DHCP client. This command specifies the ping timeout in milliseconds.
dhcpd ping_timeout number
no dhcpd ping_timeout
Syntax Description
number
|
The timeout value of the ping, in milliseconds. The minimum value is 10, the maximum is 10000. The default is 50.
|
Defaults
The default number of milliseconds for number is 50.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
The security appliance waits for both ICMP ping packets to time out before assigning an IP address to a DHCP client. For example, if the default value is used, the security appliance waits for 1500 milliseconds (750 milliseconds for each ICMP ping packet) before assigning an IP address.
A long ping timeout value can adversely affect the performance of the DHCP server.
Examples
The following example shows how to use the dhcpd ping_timeout command to change the ping timeout value for the DHCP server:
hostname(config)# dhcpd address 10.0.1.101-10.0.1.110 inside
hostname(config)# dhcpd dns 198.162.1.2 198.162.1.3
hostname(config)# dhcpd wins 198.162.1.4
hostname(config)# dhcpd lease 3000
hostname(config)# dhcpd ping_timeout 1000
hostname(config)# dhcpd domain example.com
hostname(config)# dhcpd enable inside
Related Commands
Command
|
Description
|
clear configure dhcpd
|
Removes all DHCP server settings.
|
show running-config dhcpd
|
Displays the current DHCP server configuration.
|
dhcpd wins
To define the WINS servers for DHCP clients, use the dhcpd wins command in global configuration mode. To remove the WINS servers from the DHCP server, use the no form of this command.
dhcpd wins server1 [server2]
no dhcpd wins [server1 [server2]]
Syntax Description
server1
|
Specifies the IP address of the primary Microsoft NetBIOS name server (WINS server).
|
server2
|
(Optional) Specifies the IP address of the alternate Microsoft NetBIOS name server (WINS server).
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
The dhcpd wins command lets you specify the addresses of the WINS servers for the DHCP client. The no dhcpd wins command removes the WINS server IP addresses from the configuration.
Examples
The following example shows how to use the dhcpd wins command to specify WINS server information that is sent to DHCP clients:
hostname(config)# dhcpd address 10.0.1.101-10.0.1.110 inside
hostname(config)# dhcpd dns 198.162.1.2 198.162.1.3
hostname(config)# dhcpd wins 198.162.1.4
hostname(config)# dhcpd lease 3000
hostname(config)# dhcpd ping_timeout 1000
hostname(config)# dhcpd domain example.com
hostname(config)# dhcpd enable inside
Related Commands
Command
|
Description
|
clear configure dhcpd
|
Removes all DHCP server settings.
|
dhcpd address
|
Specifies the address pool used by the DHCP server on the specified interface.
|
dhcpd dns
|
Defines the DNS servers for DHCP clients.
|
show dhcpd
|
Displays DHCP binding, statistic, or state information.
|
show running-config dhcpd
|
Displays the current DHCP server configuration.
|
dhcprelay enable
To enable the DHCP relay agent, use the dhcprelay enable command in global configuration mode. To disable DHCP relay agent, use the no form of this command. The DHCP relay agent allows DHCP requests to be forwarded from a specified security appliance interface to a specified DHCP server.
dhcprelay enable interface_name
no dhcprelay enable interface_name
Syntax Description
interface_name
|
Name of the interface on which the DHCP relay agent accepts client requests.
|
Defaults
The DHCP relay agent is disabled.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
—
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
For the security appliance to start the DHCP relay agent with the dhcprelay enable interface_name command, you must have a dhcprelay server command already in the configuration. Otherwise, the security appliance displays an error message similar to the following:
DHCPRA: Warning - There are no DHCP servers configured!
No relaying can be done without a server!
Use the 'dhcprelay server <server_ip> <server_interface>' command
You cannot enable DHCP relay under the following conditions:
•
You cannot enable DHCP relay and the DHCP relay server on the same interface.
•
You cannot enable DCHP relay and a DHCP server (dhcpd enable) on the same interface.
•
You cannot enable DHCP relay in a context at the same time as the DHCP server.
•
For multiple context mode, you cannot enable DHCP relay on an interface that is used by more than one context (a shared VLAN).
The no dhcprelay enable interface_name command removes the DHCP relay agent configuration for the interface that is specified by interface_name only.
Examples
The following example shows how to configure the DHCP relay agent for a DHCP server with an IP address of 10.1.1.1 on the outside interface of the security appliance, client requests on the inside interface of the security appliance, and a timeout value up to 90 seconds:
hostname(config)# dhcprelay server 10.1.1.1 outside
hostname(config)# dhcprelay timeout 90
hostname(config)# dhcprelay enable inside
hostname(config)# show running-config dhcprelay
dhcprelay server 10.1.1.1 outside
The following example shows how to disable the DHCP relay agent:
hostname(config)# no dhcprelay enable inside
hostname(config)# show running-config dhcprelay
dhcprelay server 10.1.1.1 outside
Related Commands
Command
|
Description
|
clear configure dhcprelay
|
Removes all DHCP relay agent settings.
|
debug dhcp relay
|
Displays debug information for the DHCP relay agent.
|
dhcprelay server
|
Specifies the DHCP server that the DHCP relay agent forwards DHCP requests to.
|
dhcprelay setroute
|
Defines IP address that the DHCP relay agent uses as the default router address in DHCP replies.
|
show running-config dhcprelay
|
Displays the current DHCP relay agent configuration.
|
dhcprelay server
To specify the DHCP server that DHCP requests are forwarded to, use the dhcpreplay server command in global configuration mode. To remove the DHCP server from the DHCP relay configuration, use the no form of this command. The DHCP relay agent allows DHCP requests to be forwarded from a specified security appliance interface to a specified DHCP server.
dhcprelay server IP_address interface_name
no dhcprelay server IP_address [interface_name]
Syntax Description
interface_name
|
Name of the security appliance interface on which the DHCP server resides.
|
IP_address
|
The IP address of the DHCP server to which the DHCP relay agent forwards client DHCP requests.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
—
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
You can add up to four DHCP relay servers per interface. You must add at least one dhcprelay server command to the security appliance configuration before you can enter the dhcprelay enable command. You cannot configure a DHCP client on an interface that has a DHCP relay server configured.
The dhcprelay server command opens UDP port 67 on the specified interface and starts the DHCP relay task as soon as the dhcprelay enable command is added to the configuration. If there is no dhcprelay enable command in the configuration, then the sockets are not opened and the DHCP relay task does not start.
When you use the no dhcprelay server IP_address [interface_name] command, the interface stops forwarding DHCP packets to that server.
The no dhcprelay server IP_address [interface_name] command removes the DHCP relay agent configuration for the DHCP server that is specified by IP_address [interface_name] only.
Examples
The following example shows how to configure the DHCP relay agent for a DHCP server with an IP address of 10.1.1.1 on the outside interface of the security appliance, client requests on the inside interface of the security appliance, and a timeout value up to 90 seconds:
hostname(config)# dhcprelay server 10.1.1.1 outside
hostname(config)# dhcprelay timeout 90
hostname(config)# dhcprelay enable inside
hostname(config)# show running-config dhcprelay
dhcprelay server 10.1.1.1 outside
Related Commands
Command
|
Description
|
clear configure dhcprelay
|
Removes all DHCP relay agent settings.
|
dhcprelay enable
|
Enables the DHCP relay agent on the specified interface.
|
dhcprelay setroute
|
Defines IP address that the DHCP relay agent uses as the default router address in DHCP replies.
|
dhcprelay timeout
|
Specifies the timeout value for the DHCP relay agent.
|
show running-config dhcprelay
|
Displays the current DHCP relay agent configuration.
|
dhcprelay setroute
To set the default gateway address in the DHCP reply, use the dhcprelay setroute command in global configuration mode. To remove the default router, use the no form of this command. This command causes the default IP address of the DHCP reply to be substituted with the address of the specified security appliance interface.
dhcprelay setroute interface
no dhcprelay setroute interface
Syntax Description
interface
|
Configures the DHCP relay agent to change the first default IP address (in the packet sent from the DHCP server) to the address of interface.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
—
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
The dhcprelay setroute interface command lets you enable the DHCP relay agent to change the first default router address (in the packet sent from the DHCP server) to the address of interface.
If there is no default router option in the packet, the security appliance adds one containing the address of interface. This action allows the client to set its default route to point to the security appliance.
When you do not configure the dhcprelay setroute interface command (and there is a default router option in the packet), it passes through the security appliance with the router address unaltered.
Examples
The following example shows how to use the dhcprelay setroute command to set the default gateway in the DHCP reply from the external DHCP server to the inside interface of the security appliance:
hostname(config)# dhcprelay server 10.1.1.1 outside
hostname(config)# dhcprelay timeout 90
hostname(config)# dhcprelay setroute inside
hostname(config)# dhcprelay enable inside
Related Commands
Command
|
Description
|
clear configure dhcprelay
|
Removes all DHCP relay agent settings.
|
dhcprelay enable
|
Enables the DHCP relay agent on the specified interface.
|
dhcprelay server
|
Specifies the DHCP server that the DHCP relay agent forwards DHCP requests to.
|
dhcprelay timeout
|
Specifies the timeout value for the DHCP relay agent.
|
show running-config dhcprelay
|
Displays the current DHCP relay agent configuration.
|
dhcprelay timeout
To set the DHCP relay agent timeout value, use the dhcprelay timeout command in global configuration mode. To restore the timeout value to its default value, use the no form of this command.
dhcprelay timeout seconds
no dhcprelay timeout
Syntax Description
seconds
|
Specifies the number of seconds that are allowed for DHCP relay address negotiation.
|
Defaults
The default value for the dhcprelay timeout is 60 seconds.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
—
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
The dhcprelay timeout command lets you set the amount of time, in seconds, allowed for responses from the DHCP server to pass to the DHCP client through the relay binding structure.
Examples
The following example shows how to configure the DHCP relay agent for a DHCP server with an IP address of 10.1.1.1 on the outside interface of the security appliance, client requests on the inside interface of the security appliance, and a timeout value up to 90 seconds:
hostname(config)# dhcprelay server 10.1.1.1 outside
hostname(config)# dhcprelay timeout 90
hostname(config)# dhcprelay enable inside
hostname(config)# show running-config dhcprelay
dhcprelay server 10.1.1.1 outside
Related Commands
Command
|
Description
|
clear configure dhcprelay
|
Removes all DHCP relay agent settings.
|
dhcprelay enable
|
Enables the DHCP relay agent on the specified interface.
|
dhcprelay server
|
Specifies the DHCP server that the DHCP relay agent forwards DHCP requests to.
|
dhcprelay setroute
|
Defines IP address that the DHCP relay agent uses as the default router address in DHCP replies.
|
show running-config dhcprelay
|
Displays the current DHCP relay agent configuration.
|
dir
To display the directory contents, use the dir command in privileged EXEC mode.
dir [/all] [all-filesystems] [/recursive] [disk0: | disk1: | flash: | system:] [path]
Syntax Description
/all
|
(Optional) Displays all files.
|
all-filesystems
|
(Optional) Displays the files of all filesystems
|
disk0:
|
(Optional) Specifies the internal Flash memory, followed by a colon.
|
disk1:
|
(Optional) Specifies the external Flash memory card, followed by a colon.
|
/recursive
|
(Optional) Displays the directory contents recursively.
|
system:
|
(Optional) Displays the directory contents of the file system.
|
flash:
|
(Optional) Displays the directory contents of the default Flash partition.
|
path
|
(Optional) Specifies a specific path.
|
Defaults
If you do not specify a directory, the directory is the current working directory by default.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
—
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
The dir command without keywords or arguments displays the directory contents of the current directory.
Examples
The following example shows how to display the directory contents:
1 -rw- 1519 10:03:50 Jul 14 2003 my_context.cfg
2 -rw- 1516 10:04:02 Jul 14 2003 my_context.cfg
3 -rw- 1516 10:01:34 Jul 14 2003 admin.cfg
60985344 bytes total (60973056 bytes free)
This example shows how to display recursively the contents of the entire file system:
hostname# dir /recursive disk0:
1 -rw- 1519 10:03:50 Jul 14 2003 my_context.cfg
2 -rw- 1516 10:04:02 Jul 14 2003 my_context.cfg
3 -rw- 1516 10:01:34 Jul 14 2003 admin.cfg
60985344 bytes total (60973056 bytes free)
This example shows how display the contents of the Flash partition:
1 -rw- 1519 10:03:50 Jul 14 2003 my_context.cfg
2 -rw- 1516 10:04:02 Jul 14 2003 my_context.cfg
3 -rw- 1516 10:01:34 Jul 14 2003 admin.cfg
60985344 bytes total (60973056 bytes free)
Related Commands
Command
|
Description
|
cd
|
Changes the current working directory to the one specified.
|
pwd
|
Displays the current working directory.
|
mkdir
|
Creates a directory.
|
rmdir
|
Removes a directory.
|
disable
To exit privileged EXEC mode and return to unprivileged EXEC mode, use the disable command in privileged EXEC mode.
disable
Syntax Description
This command has no arguments or keywords.
Defaults
No default behaviors or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
Use the enable command to enter privileged mode. The disable command allows you to exit privileged mode and returns you to unprivileged mode.
Examples
The following example shows how to enter privileged mode:
The following example shows how to exit privileged mode:
Related Commands
Command
|
Description
|
enable
|
Enables privileged EXEC mode.
|
distance ospf
To define OSPF route administrative distances based on route type, use the distance ospf command in router configuration mode. To restore the default values, use the no form of this command.
distance ospf [intra-area d1] [inter-area d2] [external d3]
no distance ospf
Syntax Description
d1, d2, and d3
|
Distance for each route types. Valid values range from 1 to 255.
|
external
|
(Optional) Sets the distance for routes from other routing domains that are learned by redistribution.
|
inter-area
|
(Optional) Sets the distance for all routes from one area to another area.
|
intra-area
|
(Optional) Sets the distance for all routes within an area.
|
Defaults
The default values for d1, d2, and d3 are 110.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Router configuration
|
•
|
—
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
You must specify at least one keyword and argument. You can enter the commands for each type of administrative distance separately, however they appear as a single command in the configuration. If you reenter an administrative distance, the administrative distance for only that route type changes; the administrative distances for any other route types remain unaffected.
The no form of the command does not take any keywords or arguments. Using the no form of the command restores the default administrative distance for all of the route types. If you want to restore the default administrative distance for a single route type when you have multiple route types configured, you can do one of the following:
•
Manually set that route type to the default value.
•
Use the no form of the command to remove the entire configuration and then re-enter the configurations for the route types you want to keep.
Examples
The following example sets the administrative distance of external routes to 150:
hostname(config-router)# distance ospf external 105
The following example shows how entering separate commands for each route type appears as a single command in the router configuration:
hostname(config-router)# distance ospf intra-area 105 inter-area 105
hostname(config-router)# distance ospf intra-area 105
hostname(config-router)# distance ospf external 105
hostname(config-router)# exit
hostname(config)# show running-config router ospf 1
distance ospf intra-area 105 inter-area 105 external 105
The following example shows how to set each administrative distance to 105, and then change only the external administrative distance to 150. The show running-config router ospf command shows how only the external route type value changed, while the other route types retained the value previously set.
hostname(config-router)# distance ospf external 105 intra-area 105 inter-area 105
hostname(config-router)# distance ospf external 150
hostname(config-router)# exit
hostname(config)# show running-config router ospf 1
distance ospf intra-area 105 inter-area 105 external 150
Related Commands
Command
|
Description
|
router ospf
|
Enters router configuration mode.
|
show running-config router
|
Displays the commands in the global router configuration.
|
dns domain-lookup
To enable the security appliance to send DNS requests to a DNS server to perform a name lookup for supported commands, use the dns domain-lookup command in global configuration mode. To disable DNS lookup, use the no form of this command.
dns domain-lookup interface_name
no dns domain-lookup interface_name
Syntax Description
interface_name
|
Specifies the interface on which you want to enable DNS lookup. If you enter this command multiple times to enable DNS lookup on multiple interfaces, the security appliance tries each interface in order until it receives a response.
|
Defaults
DNS lookup is disabled by default.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Use the dns name-server command to configure the DNS server addresses to which you want to send DNS requests. See the dns name-server command for a list of commands that support DNS lookup.
The security appliance maintains a cache of name resolutions that consists of dynamically learned entries. Instead of making queries to external DNS servers each time an hostname-to-IP-address translation is needed, the security appliance caches information returned from external DNS requests. The security appliance only makes requests for names that are not in the cache. The cache entries time out automatically according to the DNS record expiration, or after 72 hours, whichever comes first.
Examples
The following example enables DNS lookup on the inside interface:
hostname(config)# dns domain-lookup inside
Related Commands
Command
|
Description
|
dns name-server
|
Configures a DNS server address.
|
dns retries
|
Specifies the number of times to retry the list of DNS servers when the security appliance does not receive a response.
|
dns timeout
|
Specifies the amount of time to wait before trying the next DNS server.
|
domain-name
|
Sets the default domain name.
|
show dns-hosts
|
Shows the DNS cache.
|
dns-guard
To enable the DNS guard function, use the dns-guard command in global configuration mode. To disable the DNS guard feature, use the no form of this command.
dns-guard
no dns-guard
Defaults
This command is enabled by default.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0(5)
|
This command was introduced.
|
Usage Guidelines
DNS guard tears down the DNS session associated with a DNS request as soon as the DNS response is forwarded by the security appliance. DNS guard also monitors the message exchange to ensure that the ID of the DNS response matches the ID of the DNS request.
The dns-guard command provides the capability to turn on or off the DNS guard function when DNS inspection is not enabled (when the inspect dns command is not configured). This command is only effective on the interfaces without DNS inspection. When DNS inspection is effective, the DNS guard function is always performed.
DNS guard is enabled together with the inspect dns command or the fixup protocol dns in earlier versions, and remains active when the inspection is disabled. This is still the default behavior, but now you have the option to disable this function.
Examples
The following example shows how to enable DNS guard:
hostname(config)# dns-guard
The following example shows how to disable DNS guard:
hostname(config)# no dns-guard
Related Commands
Commands
|
Description
|
inspect dns
|
Enables the DNS inspection.
|
class-map
|
Defines the traffic class to which to apply security actions.
|
policy-map
|
Associates a class map with specific security actions.
|
service-policy
|
Applies a policy map to one or more interfaces.
|
dns name-server
To identify one or more DNS servers, use the dns name-server command in global configuration mode. To remove a server, use the no form of this command. The security appliance uses DNS to resolve server names in your WebVPN configuration or certificate configuration (see "Usage Guidelines" for a list of supported commands). Other features that define server names (such as AAA) do not support DNS resolution. You must enter the IP address or manually resolve the name to an IP address by using the name command.
dns name-server ip_address [ip_address2] [...] [ip_address6]
no dns name-server ip_address [ip_address2] [...] [ip_address6]
Syntax Description
ip_address
|
Specifies the DNS server IP address. You can specify up to six addresses as separate commands, or for convenience, up to six addresses in one command separated by spaces. If you enter multiple servers in one command, the security appliance saves each server in a separate command in the configuration. The security appliance tries each DNS server in order until it receives a response.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
To enable DNS lookup, configure the dns domain-lookup command. If you do not enable DNS lookup, the DNS servers are not used.
WebVPN commands that support DNS resolution include the following:
•
server (pop3s)
•
server (imap4s)
•
server (smtps)
•
port-forward
•
url-list
Certificate commands that support DNS resolution include the following:
•
enrollment url
•
url
You can manually enter names and IP addresses using the name command.
See the dns retries command to set how many times the security appliance tries the list of DNS servers.
Examples
The following example adds three DNS servers:
hostname(config)# dns name-server 10.1.1.1 10.2.3.4 192.168.5.5
The security appliance saves the configuration as separate commands, as follows:
dns name-server 192.168.5.5
To add two additional servers, you can enter them as one command:
hostname(config)# dns name-server 10.5.1.1 10.8.3.8
hostname(config)# show running-config dns
dns name-server 192.168.5.5
Or you can enter them as two commands:
hostname(config)# dns name-server 10.5.1.1
hostname(config)# dns name-server 10.8.3.8
To delete multiple servers you can enter them as multiple commands or as one command, as follows:
hostname(config)# no dns name-server 10.5.1.1 10.8.3.8
Related Commands
Command
|
Description
|
dns domain-lookup
|
Enables the security appliance to perform a name lookup.
|
dns retries
|
Specifies the number of times to retry the list of DNS servers when the security appliance does not receive a response.
|
dns timeout
|
Specifies the amount of time to wait before trying the next DNS server.
|
domain-name
|
Sets the default domain name.
|
show dns-hosts
|
Shows the DNS cache.
|
dns retries
To specify the number of times to retry the list of DNS servers when the security appliance does not receive a response, use the dns retries command in global configuration mode. To restore the default setting, use the no form of this command.
dns retries number
no dns retries [number]
Syntax Description
number
|
Specifies the number of retries between 0 and 10. The default is 2.
|
Defaults
The default number of retries is 2.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Add DNS servers using the dns name-server command.
Examples
The following example sets the number of retries to 0. The security appliance only tries each server one time.
hostname(config)# dns retries 0
Related Commands
Command
|
Description
|
dns domain-lookup
|
Enables the security appliance to perform a name lookup.
|
dns name-server
|
Configures a DNS server address.
|
dns timeout
|
Specifies the amount of time to wait before trying the next DNS server.
|
domain-name
|
Sets the default domain name.
|
show dns-hosts
|
Shows the DNS cache.
|
dns timeout
To specify the amount of time to wait before trying the next DNS server, use the dns timeout command in global configuration mode. To restore the default timeout, use the no form of this command.
dns timeout seconds
no dns timeout [seconds]
Syntax Description
seconds
|
Specifies the timeout in seconds between 1 and 30. The default is 2 seconds. Each time the security appliance retries the list of servers, this timeout doubles. See the dns retries command to configure the number of retries.
|
Defaults
The default timeout is 2 seconds.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Examples
The following example sets the timeout to 1 second:
hostname(config)# dns timeout 1
Related Commands
Command
|
Description
|
dns name-server
|
Configures a DNS server address.
|
dns retries
|
Specifies the number of times to retry the list of DNS servers when the security appliance does not receive a response.
|
dns domain-lookup
|
Enables the security appliance to perform a name lookup.
|
domain-name
|
Sets the default domain name.
|
show dns-hosts
|
Shows the DNS cache.
|
dns-server
To set the IP address of the primary and secondary DNS servers, use the dns-server command in group-policy mode. To remove the attribute from the running configuration, use the no form of this command. This option allows inheritance of a DNS server from another group policy. To prevent inheriting a server, use the dns-server none command.
dns-server {value ip_address [ip_address] | none}
no dns-server
Syntax Description
none
|
Sets dns-servers to a null value, thereby allowing no DNS servers. Prevents inheriting a value from a default or specified group policy.
|
value ip_address
|
Specifies the IP address of the primary and secondary DNS servers.
|
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Group-policy
|
•
|
—
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Every time you issue the dns-server command you overwrite the existing setting. For example, if you configure DNS server x.x.x.x and then configure DNS server y.y.y.y, the second command overwrites the first, and y.y.y.y becomes the sole DNS server. The same holds true for multiple servers. To add a DNS server rather than overwrite previously configured servers, include the IP addresses of all DNS servers when you enter this command.
Examples
The following example shows how to configure DNS servers with the IP addresses 10.10.10.15, 10.10.10.30, and 10.10.10.45 for the group policy named FirstGroup.
hostname(config)# group-policy FirstGroup attributes
hostname(config-group-policy)# dns-server value 10.10.10.15 10.10.10.30 10.10.10.45
domain-name
To set the default domain name, use the domain-name command in global configuration mode. To remove the domain name, use the no form of this command. The security appliance appends the domain name as a suffix to unqualified names. For example, if you set the domain name to "example.com," and specify a syslog server by the unqualified name of "jupiter," then the security appliance qualifies the name to "jupiter.example.com."
domain-name name
no domain-name [name]
Syntax Description
name
|
Sets the domain name, up to 63 characters.
|
Defaults
The default domain name is default.domain.invalid.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
For multiple context mode, you can set the domain name for each context, as well as within the system execution space.
Examples
The following example sets the domain as example.com:
hostname(config)# domain-name example.com
Related Commands
Command
|
Description
|
dns domain-lookup
|
Enables the security appliance to perform a name lookup.
|
dns name-server
|
Configures a DNS server address.
|
hostname
|
Sets the security appliance hostname.
|
show running-config domain-name
|
Shows the domain name configuration.
|
downgrade
To downgrade to a previous version of the operating system software (software image), use the downgrade command in privileged EXEC mode.
Caution 
Do not load a previous version of software if your PIX security appliance is currently running PIX Version 7.0 or later. Loading a software image from monitor mode, on a PIX security appliance that has a PIX Version 7.0 file system, results in unpredictable behavior and is not supported. We strongly recommend that you use the
downgrade command from a running PIX Version 7.0 image that facilitates the downgrade process.
downgrade image_url [activation-key [flash | 4-part_key | file]] [config start_config_url]
Syntax Description
4-part_key
|
(Optional) Specifies the four-part activation key to write to the image.
If you are using a five-part key, a warning with the list of features that might be lost by going back to the four-part key is generated.
If the system Flash has been reformatted or erased, no default key is available for the downgrade. In that case, the CLI prompts you to enter an activation key at the command line. This is the default behavior if the activation-key keyword is not specified at the command line.
|
activation-key
|
(Optional) Specifies the activation key to use with the downgraded software image.
|
config
|
(Optional) Specifies the startup configuration file.
|
file
|
(Optional) Specifies the path/URL and name of the activation key file to use after the downgrade procedure completes. If the source image file is the one saved in Flash during the upgrade process, the activation key in this file is used with the downgrade.
|
flash
|
(Optional) Specifies to look in Flash memory for the four-part activation key that was used on the device prior to using a five-part activation key. This is the default behavior if the activation-key keyword is not specified at the command line.
|
image_url
|
Specifies the path/URL and name of the software image to downgrade to. The software image must be a version prior to 7.0.
|
start_config_url
|
(Optional) Specifies the path/URL and name of the configuration file to use after the downgrade procedure completes.
|
Defaults
If the activation-key keyword is not specified, the security appliance tries to use the last four-part activation key used. If the security appliance cannot find a four-part activation key in Flash, the command is rejected and an error message displays. In this case, a valid four-part activation-key must be specified at the command line next time. The default activation key or the user specified activation key is compared with the activation key currently in effect. If there is a potential loss of features by using the chosen activation key, a warning displays with the list of features that could be lost after downgrade.
The security appliance uses downgrade.cfg by default if the startup configuration file is not specified.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
|
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
This command is not supported on Cisco ASA 5500 series security appliances.
Caution 
A power failure during the downgrade process might corrupt the Flash memory. As a precaution, backup all data on the Flash memory to an external device prior to starting the downgrade process.
Recovering corrupt Flash memory requires direct console access. See the
format command for more information.
Examples
The following example downgrades the software to Release 6.3.3:
hostname# downgrade tftp://17.13.2.25//tftpboot/mananthr/cdisk.6.3.3 activation-key
32c261f3 062afe24 c94ef2ea 0e299a3f
This command will reformat the flash and automatically reboot the system.
Do you wish to continue? [confirm]
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
All items have been buffered successfully.
If the flash reformat is interrupted or fails, data in flash will be lost
and the system might drop to monitor mode.
Do you wish to continue? [confirm]
Installing the correct file system for the image and saving the buffered data
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Flash downgrade succeeded
The following example shows what happens if you enter an invalid activation key:
hostname# downgrade tftp://17.13.2.25//tftpboot/mananthr/cdisk.6.3.3 activation-key
This command will reformat the flash and automatically reboot the system.
Do you wish to continue? [confirm]
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Error: activation key entered is invalid.
Enter the file option when there is no actkey in the source image (happens if the source
is in tftp server).
The following example shows what happens if you specify the activation key in the source image and it does not exist:
hostname# downgrade tftp://17.13.2.25//tftpboot/mananthr/cdisk.6.3.3 activation-key file
This command will reformat the flash and automatically reboot the system.
Do you wish to continue? [confirm]
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Activation key does not exist in the source image.
Please use the activation-key option to specify an activation key.
The following example shows how to abort the downgrade procedure at the final prompt:
hostname# downgrade tftp://17.13.2.25//tftpboot/mananthr/cdisk.6.3.3
This command will reformat the flash and automatically reboot the system.
Do you wish to continue? [confirm]
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
All items have been buffered successfully.
If the flash reformat is interrupted or fails, data in flash will be lost
and the system might drop to monitor mode.
Do you wish to continue? [confirm] ===<typed n here>
Downgrade process terminated.
To downgrade, the software version must be less than 7.0. The following example shows a failed attempt at downgrading the software:
hostname# downgrade tftp://17.13.2.25//scratch/views/test/target/sw/cdisk
This command will reformat the flash and automatically reboot the system.
Do you wish to continue? [confirm]
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Error: Need to use an image with version less than 7-0-0-0.
The following example shows what happens if you specify an image and do not verify the activation key:
hostname# downgrade tftp://17.13.2.25//tftpboot/mananthr/cdisk.4.4.1-rel
This command will reformat the flash and automatically reboot the system.
Do you wish to continue? [confirm]
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Image checksum has not been verified
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Warning: Activation key not verified.
Key 32c261f3 633fe24 c94ef2ea e299a3f might be incompatible with the image version
Do you wish to continue? [confirm]
Downgrade process terminated.
Please enter an activation-key in the command line.
The following example shows what happens if the four-part activation key does not have all the features that the current five-part activation key has:
hostname# downgrade tftp://17.13.2.25//tftpboot/mananthr/cdisk.6.3.3
This command will reformat the flash and automatically reboot the system.
Do you wish to continue? [confirm]
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The following features available in current activation key in flash
are NOT available in 4 tuple activation key in flash:
current activation key in flash: UR(estricted)
4 tuple activation key in flash: R(estricted)
Some features might not work in the downgraded image if this key is used.
Do you wish to continue? [confirm]
Downgrade process terminated.
Please enter an activation-key in the command line.
Related Commands
Command
|
Description
|
copy running-config startup-config
|
Saves the current running configuration to Flash memory.
|
drop
To drop specified GTP messages, use the drop command in GTP map configuration mode, which is accessed by using the gtp-map command. Use the no form to remove the command.
drop {apn access_point_name | message message_id | version version}
no drop {apn access_point_name | message message_id | version version}
Syntax Description
apn
|
Drops GTP messages with the specified access point name.
|
access_point_name
|
The text string of the APN which will be dropped.
|
message
|
Drops specific GTP messages.
|
message_id
|
An alphanumeric identifier for the message that you want to drop. The valid range for message_id is 1 to 255.
|
version
|
Drops GTP messages with the specified version.
|
version
|
Use 0 to identify Version 0 and 1 to identify Version 1. Version 0 of GTP uses port 2123, while Version 1 uses port 3386.
|
Defaults
All messages with valid message IDs, APNs, and version are inspected.
Any APN is allowed.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
GTP map configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
Use the drop message command to drop specific GTP messages that you do not want to allow in your network.
Use the drop apn command to drop GTP messages with the specified access point. Use the drop version command to drop GTP messages with the specified version.
Examples
The following example drops traffic to message ID 20:
hostname(config)# gtp-map qtp-policy
hostname(config-gtpmap)# drop message 20
Related Commands
Commands
|
Description
|
clear service-policy inspect gtp
|
Clears global GTP statistics.
|
debug gtp
|
Displays detailed information about GTP inspection.
|
gtp-map
|
Defines a GTP map and enables GTP map configuration mode.
|
inspect gtp
|
Applies a specific GTP map to use for application inspection.
|
show service-policy inspect gtp
|
Displays the GTP configuration.
|
duplex
To set the duplex of a copper (RJ-45) Ethernet interface, use the duplex command in interface configuration mode. To restore the duplex setting to the default, use the no form of this command.
duplex {auto | full | half}
no duplex
Syntax Description
auto
|
Auto-detects the duplex mode.
|
full
|
Sets the duplex mode to full duplex.
|
half
|
Sets the duplex mode to half duplex.
|
Defaults
The default is auto detect.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Interface configuration
|
•
|
•
|
•
|
—
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was moved from a keyword of the interface command to an interface configuration mode command.
|
Usage Guidelines
Set the duplex mode on the physical interface only.
The duplex command is not available for fiber media.
If your network does not support auto detection, set the duplex mode to a specific value.
For RJ-45 interfaces on the ASA 5500 series adaptive security appliance, the default auto-negotiation setting also includes the Auto-MDI/MDIX feature. Auto-MDI/MDIX eliminates the need for crossover cabling by performing an internal crossover when a straight cable is detected during the auto-negotiation phase. Either the speed or duplex must be set to auto-negotiate to enable Auto-MDI/MDIX for the interface. If you explicitly set both the speed and duplex to a fixed value, thus disabling auto-negotiation for both settings, then Auto-MDI/MDIX is also disabled.
Examples
The following example sets the duplex mode to full duplex:
hostname(config)# interface gigabitethernet0/1
hostname(config-if)# speed 1000
hostname(config-if)# duplex full
hostname(config-if)# nameif inside
hostname(config-if)# security-level 100
hostname(config-if)# ip address 10.1.1.1 255.255.255.0
hostname(config-if)# no shutdown
Related Commands
Command
|
Description
|
clear configure interface
|
Clears all configuration for an interface.
|
interface
|
Configures an interface and enters interface configuration mode.
|
show interface
|
Displays the runtime status and statistics of interfaces.
|
show running-config interface
|
Shows the interface configuration.
|
speed
|
Sets the interface speed.
|
email
To include the indicated email address in the Subject Alternative Name extension of the certificate during enrollment, use the email command in crypto ca trustpoint configuration mode. To restore the default setting, use the no form of the command.
email address
no email
Syntax Description
address
|
Specifies the email address. The maximum length of address is 64 characters.
|
Defaults
The default setting is not set.
Command Modes
The following table shows the modes in which you can enter the
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Crypto ca trustpoint configuration
|
•
|
•
|
•
|
|
|
command:
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Examples
The following example enters crypto ca trustpoint configuration mode for trustpoint central, and includes the email address jjh@nhf.net in the enrollment request for trustpoint central:
hostname(config)# crypto ca trustpoint central
hostname(ca-trustpoint)# email jjh@nhf.net
Related Commands
Command
|
Description
|
crypto ca trustpoint
|
Enters trustpoint configuration mode.
|
enable
To enter privileged EXEC mode, use the enable command in user EXEC mode.
enable [level]
Syntax Description
level
|
(Optional) The privilege level between 0 and 15.
|
Defaults
Enters privilege level 15 unless you are using command authorization, in which case the default level depends on the level configured for your username.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
User EXEC
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
The default enable password is blank. See the enable password command to set the password.
To use privilege levels other than the default of 15, configure local command authorization (see the aaa authorization command command and specify the LOCAL keyword), and set the commands to different privilege levels using the privilege command. If you do not configure local command authorization, the enable levels are ignored, and you have access to level 15 regardless of the level you set. See the show curpriv command to view your current privilege level.
Levels 2 and above enter privileged EXEC mode. Levels 0 and 1 enter user EXEC mode.
Enter the disable command to exit privileged EXEC mode.
Examples
The following example enters privileged EXEC mode:
The following example enters privileged EXEC mode for level 10:
Related Commands
Command
|
Description
|
enable password
|
Sets the enable password.
|
disable
|
Exits privileged EXEC mode.
|
aaa authorization command
|
Configures command authorization.
|
privilege
|
Sets the command privilege levels for local command authorization.
|
show curpriv
|
Shows the currently logged in username and the user privilege level.
|
enable (webvpn)
To enable WebVPN or e-mail proxy access on a previously configured interface, use the enable command. For WebVPN, use this command in webvpn mode. For e-mail proxies (IMAP4S. POP3S, SMTPS), use this command in the applicable e-mail proxy mode. To disable WebVPN on an interface, use the no version of the command.
enable ifname
no enable
Syntax Description
ifname
|
Identifies the previously configured inteface. Use the nameif command to configure interfaces.
|
Defaults
WebVPN is disabled by default.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Webvpn
|
•
|
—
|
•
|
—
|
—
|
Imap4s
|
•
|
—
|
•
|
—
|
—
|
Pop3s
|
•
|
—
|
•
|
—
|
—
|
SMTPS
|
•
|
—
|
•
|
—
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Examples
The following example shows how to enable WebVPN on the interface named Outside:
hostname(config-webvpn)# enable Outside
The following example shows how to configure POP3S e-mail proxy on the interface named Outside:
hostname(config-pop3s)# enable Outside
enable password
To set the enable password for privileged EXEC mode, use the enable password command in global configuration mode. To remove the password for a level other than 15, use the no form of this command. You cannot remove the level 15 password.
enable password password [level level] [encrypted]
no enable password level level
Syntax Description
encrypted
|
(Optional) Specifies that the password is in encrypted form. The password is saved in the configuration in encrypted form, so you cannot view the original password after you enter it. If for some reason you need to copy the password to another security appliance but do not know the original password, you can enter the enable password command with the encrypted password and this keyword. Normally, you only see this keyword when you enter the show running-config enable command.
|
level level
|
(Optional) Sets a password for a privilege level between 0 and 15.
|
password
|
Sets the password as a case-sensitive string of up to 16 alphanumeric and special characters. You can use any character in the password except a question mark or a space.
|
Defaults
The default password is blank. The default level is 15.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Global configuration
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
Preexisting
|
This command was preexisting.
|
Usage Guidelines
The default password for enable level 15 (the default level) is blank. To reset the password to be blank, do not enter any text for the password.
For multiple context mode, you can create an enable password for the system configuration as well as for each context.
To use privilege levels other than the default of 15, configure local command authorization (see the aaa authorization command command and specify the LOCAL keyword), and set the commands to different privilege levels using the privilege command. If you do not configure local command authorization, the enable levels are ignored, and you have access to level 15 regardless of the level you set. See the show curpriv command to view your current privilege level.
Levels 2 and above enter privileged EXEC mode. Levels 0 and 1 enter user EXEC mode.
Examples
The following example sets the enable password to Pa$$w0rd:
hostname(config)# enable password Pa$$w0rd
The following example sets the enable password to Pa$$w0rd10 for level 10:
hostname(config)# enable password Pa$$w0rd10 level 10
The following example sets the enable password to an encrypted password that you copied from another security appliance:
hostname(config)# enable password jMorNbK0514fadBh encrypted
Related Commands
Command
|
Description
|
aaa authorization command
|
Configures command authorization.
|
enable
|
Enters privileged EXEC mode.
|
privilege
|
Sets the command privilege levels for local command authorization.
|
show curpriv
|
Shows the currently logged in username and the user privilege level.
|
show running-config enable
|
Shows the enable passwords in encrypted form.
|
enforcenextupdate
To specify how to handle the NextUpdate CRL field, use the enforcenextupdate command in ca-crl configuration mode. If set, this command requires CRLs to have a NextUpdate field that has not yet lapsed. If not used, the security appliance allows a missing or lapsed NextUpdate field in a CRL.
To permit a lapsed or missing NextUpdate field, use the no form of this command.
enforcenextupdate
no enforcenextupdate
Syntax Description
This command has no arguments or keywords.
|
Defaults
The default setting is enforced (on).
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
CRL configuration
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Examples
The following example enters ca-crl configuration mode, and requires CRLs to have a NextUpdate field that has not expired for trustpoint central:
hostname(config)# crypto ca trustpoint central
hostname(ca-trustpoint)# crl configure
hostname(ca-crl)# enforcenextupdate
Related Commands
Command
|
Description
|
cache-time
|
Specifies a cache refresh time in minutes.
|
crl configure
|
Enters ca-crl configuration mode.
|
crypto ca trustpoint
|
Enters trustpoint configuration mode.
|
enrollment retry count
To specify a retry count, use the enrollment retry count command in Crypto ca trustpoint configuration mode. After requesting a certificate, the security appliance waits to receive a certificate from the CA. If the security appliance does not receive a certificate within the configured retry period, it sends another certificate request. The security appliance repeats the request until either it receives a response or reaches the end of the configured retry period.
To restore the default setting of the retry count, use the no form of the command.
enrollment retry count number
no enrollment retry count
Syntax Description
number
|
The maximum number of attempts to send an enrollment request. The valid range is 0, 1-100 retries.
|
Defaults
The default setting for number is 0 (unlimited).
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Crypto ca trustpoint configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
This command is optional and applies only when automatic enrollment is configured.
Examples
The following example enters crypto ca trustpoint configuration mode for trustpoint central, and configures an enrollment retry count of 20 retries within trustpoint central:
hostname(config)# crypto ca trustpoint central
hostname(ca-trustpoint)# enrollment retry count 20
Related Commands
Command
|
Description
|
crypto ca trustpoint
|
Enters trustpoint configuration mode.
|
default enrollment
|
Returns enrollment parameters to their defaults.
|
enrollment retry period
|
Specifies the number of minutes to wait before resending an enrollment request.
|
enrollment retry period
To specify a retry period, use the enrollment retry period command in crypto ca trustpoint configuration mode. After requesting a certificate, the security appliance waits to receive a certificate from the CA. If the security appliance does not receive a certificate within the specified retry period, it sends another certificate request.
To restore the default setting of the retry period, use the no form of the command.
enrollment retry period minutes
no enrollment retry period
Syntax Description
minutes
|
The number of minutes between attempts to send an enrollment request. the valid range is 1- 60 minutes.
|
Defaults
The default setting is 1 minute.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Crypto ca trustpoint configuration
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
This command is optional and applies only when automatic enrollment is configured.
Examples
The following example enters crypto ca trustpoint configuration mode for trustpoint central, and configures an enrollment retry period of 10 minutes within trustpoint central:
hostname(config)# crypto ca trustpoint central
hostname(ca-trustpoint)# enrollment retry period 10
Related Commands
Command
|
Description
|
crypto ca trustpoint
|
Enters trustpoint configuration mode.
|
default enrollment
|
Returns all enrollment parameters to their system default values.
|
enrollment retry count
|
Defines the number of retries to requesting an enrollment.
|
enrollment terminal
To specify cut and paste enrollment with this trustpoint (also known as manual enrollment), use the enrollment terminal command in crypto ca trustpoint configuration mode. To restore the default setting of the command, use the no form of the command.
enrollment terminal
no enrollment terminal
Syntax Description
This command has no arguments or keywords.
|
Defaults
The default setting is off.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Crypto ca trustpoint configuration
|
•
|
•
|
•
|
•
|
—
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Examples
The following example enters crypto ca trustpoint configuration mode for trustpoint central, and specifies the cut and paste method of CA enrollment for trustpoint central:
hostname(config)# crypto ca trustpoint central
hostname(ca-trustpoint)# enrollment terminal
Related Commands
Command
|
Description
|
crypto ca trustpoint
|
Enters trustpoint configuration mode.
|
default enrollment
|
Returns enrollment parameters to their defaults.
|
enrollment retry count
|
Specifies the number of retries to attempt to send an enrollment request.
|
enrollment retry period
|
Specifies the number of minutes to wait before resending an enrollment request.
|
enrollment url
|
Specifies automatic enrollment (SCEP) with this trustpoint and configures the URL.
|
enrollment url
To specify automatic enrollment (SCEP) to enroll with this trustpoint and to configure the enrollment URL, use the enrollment url command in crypto ca trustpoint configuration mode. To restore the default setting of the command, use the no form of the command.
enrollment url url
no enrollment url
Syntax Description
url
|
Specifies the name of the URL for automatic enrollment. The maximum length is 1K characters (effectively unbounded).
|
Defaults
The default setting is off.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Crypto ca trustpoint configuration
|
•
|
•
|
•
|
•
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Examples
The following example enters crypto ca trustpoint configuration mode for trustpoint central, and specifies SCEP enrollment at the URL https://enrollsite for trustpoint central:
hostname(config)# crypto ca trustpoint central
hostname(ca-trustpoint)# enrollment url https://enrollsite
Related Commands
Command
|
Description
|
crypto ca trustpoint
|
Enters trustpoint configuration mode.
|
default enrollment
|
Returns enrollment parameters to their defaults.
|
enrollment retry count
|
Specifies the number of retries to attempt to send an enrollment request.
|
enrollment retry period
|
Specifies the number of minutes to wait before resending an enrollment request.
|
enrollment terminal
|
Specifies cut and paste enrollment with this trustpoint.
|
erase
To erase and reformat the file system, use the erase command in privileged EXEC mode. This command overwrites all files and erases the file system, including hidden system files, and then reinstalls the file system.
erase [disk0: | disk1: | flash:]
Syntax Description
disk0:
|
(Optional) Specifies the internal Flash memory, followed by a colon.
|
disk1:
|
(Optional) Specifies the external, compact Flash memory card, followed by a colon.
|
flash:
|
(Optional) Specifies the internal Flash memory, followed by a colon.
Caution  Erasing the Flash memory also removes the licensing information, which is stored in Flash memory. Save the licensing information prior to erasing the Flash memory.
In the ASA 5500 series, the flash keyword is aliased to disk0.
|
Defaults
This command has no default settings.
Command Modes
The following table shows the modes in which you can enter the command:
Command Mode
|
Firewall Mode
|
Security Context
|
Routed
|
Transparent
|
Single
|
Multiple
|
Context
|
System
|
Privileged EXEC
|
•
|
•
|
•
|
—
|
•
|
Command History
Release
|
Modification
|
7.0
|
This command was introduced.
|
Usage Guidelines
The erase command erases all data on the Flash memory using the OxFF pattern and then rewrites an empty file system allocation table to the device.
To delete all visible files (excluding hidden system files), enter the delete /recursive command, instead of the erase command.
Note
On Cisco ASA 5500 series security appliances, the erase command destroys all user data on the disk with the 0xFF pattern. In contrast, the format command only resets the file system control structures. If you used a raw disk read tool, you could still see the information.
Examples
The following example erases and reformats the file system:
Related Commands
Command
|
Description
|
delete
|
Removes all visible files, excluding hidden system files.
|
format
|
Erases all files (including hidden system files) and formats the file system.
|
established
To permit return connections on ports that are based on an established connection, use the established command in global configuration mode. To disable the established feature, use the no form of this com