Standard ACL Configuration Mode Commands
From global configuration mode, you can enter the standard and extended ACL configuration modes.
•To work with a standard access list, enter the ip access-list standard command from the global configuration mode prompt. The CLI enters a configuration mode in which all subsequent commands apply to the current access list.
•To work with an extended access list, enter the ip access-list extended command from the global configuration mode prompt. The CLI enters a configuration mode in which all subsequent commands apply to the current access list.
To exit an ACL configuration mode, enter exit to return to global configuration mode:
WAE(config-std-nacl)# exit
To return to global configuration mode, enter the exit command.
(config) ip access-list standard
To create and modify standard access lists on a WAAS device for controlling access to interfaces or applications, use the ip access-list standard global configuration command. To disable a standard access list, use the no form of the command.
ip access-list standard {acl-name | acl-num}
Syntax Description
standard |
Enables standard ACL configuration mode. The CLI enters the standard ACL configuration mode in which all subsequent commands apply to the current standard access list. The (config-std-nacl) prompt appears:
|
acl-name |
Access list to which all commands entered from ACL configuration mode apply, using an alphanumeric string of up to 30 characters, beginning with a letter. |
acl-num |
Access list to which all commands entered from access list configuration mode apply, using a numeric identifier. For standard access lists, the valid range is 1 to 99. |
Defaults
An access list drops all packets unless you configure at least one permit entry.
Command Modes
Global configuration
Device Modes
application-accelerator
central-manager
Usage Guidelines
Use access lists to control access to specific applications or interfaces on a WAAS device. An access control list consists of one or more condition entries that specify the kind of packets that the WAAS device will drop or accept for further processing. The WAAS device applies each entry in the order in which it occurs in the access list, which by default is the order in which you configured the entry.
Note IP ACLs that are defined on a router take precedence over the IP ACLs that are defined on the WAE. IP ACLs that are defined on a WAE take precedence over the WAAS application definition policies that are defined on the WAE.
Within ACL configuration mode, you can use the editing commands (list, delete, and move) to display the current condition entries, to delete a specific entry, or to change the order in which the entries will be evaluated. To return to global configuration mode, enter exit at the ACL configuration mode prompt.
To create an entry, use a deny or permit keyword and specify the type of packets that you want the WAAS device to drop or to accept for further processing. By default, an access list denies everything because the list is terminated by an implicit deny any entry. Therefore, you must include at least one permit entry to create a valid access list.
After creating an access list, you can include the access list in an access group using the access-group command, which determines how the access list is applied. You can also apply the access list to a specific application using the appropriate command. A reference to an access list that does not exist is the equivalent of a permit any condition statement.
To create a standard access list, enter the ip access-list standard global configuration command. Identify the new or existing access list with a name up to 30 characters long beginning with a letter, or with a number. If you use a number to identify a standard access list, it must be between 1 and 99.
Note You must use a standard access list for providing access to the SNMP server or to the TFTP gateway/server. However, you can use either a standard access list or an extended access list for providing access to the WCCP application.
You typically use a standard access list to allow connections from a host with a specific IP address or from hosts on a specific network. To allow connections from a specific host, use the permit host source-ip option and replace source-ip with the IP address of the specific host.
To allow connections from a specific network, use the permit host source-ip wildcard option. Replace source-ip with a network ID or the IP address of any host on the network that you want to specify. Replace wildcard with the dotted decimal notation for a mask that is the reverse of a subnet mask, where a 0 indicates a position that must be matched and a 1 indicates a position that does not matter. For instance, the wildcard 0.0.0.255 causes the last eight bits in the source IP address to be ignored. Therefore, the permit 192.168.1.0 0.0.0.255 entry allows access from any host on the 192.168.1.0 network.
After you identify the standard access list, the CLI enters the standard ACL configuration mode and all subsequent commands apply to the specified access list.
WAE(config)# ip access-list standard teststdacl
WAE(config-std-nacl)# exit
Examples
The following example creates a standard access list on the WAAS device that permits any packets from source IP address 192.168.1.0 for further processing:
WAE(config)# ip access-list standard teststdacl
WAE(config-std-nacl)# permit 192.168.1.0 any
WAE(config-std-nacl)# exit
The following commands activate the access list for an interface:
WAE(config)# interface gigabitethernet 1/0
WAE(config-if)# ip access-group teststdacl in
The following example shows how this configuration appears when you enter the show running-configuration command:
interface GigabitEthernet 1/0
ip address 10.1.1.50 255.255.0.0
ip access-group teststdacl in
ip access-list standard teststdacl
Related Commands
clear
show ip access-list
(config-if) ip access-group
(config-std-nacl) deny
(config-std-nacl) delete
(config-std-nacl) list
(config-std-nacl) move
(config-std-nacl) permit
(config-std-nacl) delete
To delete a line from the standard IP ACL, use the delete command.
delete line-num
Syntax Description
line-num |
Entry at a specific line number in the access list. |
Command Modes
Standard ACL configuration mode
Device Modes
application-accelerator
central-manager
Examples
The following example deletes line 10 from the standard IP ACL teststdacl:
WAE(config)# ip access-list standard teststdacl
WAE(config-std-nacl)# delete 10
Related Commands
(config-std-nacl) deny
(config-std-nacl) delete
(config-std-nacl) list
(config-std-nacl) move
(config-std-nacl) permit
(config-std-nacl) deny
To add a line to a standard access-list that specifies the type of packets that you want the WAAS device to drop, use the deny command.
[insert line-num] deny {source-ip [wildcard] | host source-ip | any}
To negate a standard IP ACL, use the following syntax.
no deny {source-ip [wildcard] | host source-ip | any}
Syntax Description
insert |
(Optional) Inserts the conditions following the specified line number into the access list. |
line-num |
Entry at a specific line number in the access list. |
deny |
Causes packets that match the specified conditions to be dropped. |
source-ip |
Source IP address. The number of the network or host from which the packet is being sent, specified as a 32-bit quantity in 4-part dotted-decimal format (for example, 0.0.0.0). |
wildcard |
(Optional) Portions of the preceding IP address to match, expressed using 4-digit, dotted-decimal notation. Bits to match are identified by a digital value of 0; bits to ignore are identified by a 1. Note For standard IP ACLs, the wildcard parameter of the ip access-list command is always optional. If the host keyword is specified for a standard IP ACL, then the wildcard parameter is not allowed. |
host |
Matches the following IP address. |
any |
Matches any IP address. |
Defaults
An access list drops all packets unless you configure at least one permit entry.
Command Modes
Standard ACL configuration mode
Device Modes
application-accelerator
central-manager
Usage Guidelines
To create an entry, use a deny or permit keyword and specify the type of packets that you want the WAAS device to drop or to accept for further processing. By default, an access list denies everything because the list is terminated by an implicit deny any entry. Therefore, you must include at least one permit entry to create a valid access list.
You typically use a standard access list to allow connections from a host with a specific IP address or from hosts on a specific network. To allow connections from a specific host, use the permit host source-ip option and replace source-ip with the IP address of the specific host.
To allow connections from a specific network, use the permit host source-ip wildcard option. Replace source-ip with a network ID or the IP address of any host on the network that you want to specify. Replace wildcard with the dotted decimal notation for a mask that is the reverse of a subnet mask, where a 0 indicates a position that must be matched and a 1 indicates a position that does not matter. For instance, the wildcard 0.0.0.255 causes the last eight bits in the source IP address to be ignored. Therefore, the permit 192.168.1.0 0.0.0.255 entry allows access from any host on the 192.168.1.0 network.
Examples
The following example creates standard access-list that denies any packets from source IP address 192.168.1.0 for processing:
WAE(config)# ip access-list standard teststdacl
WAE(config-std-nacl)# deny 192.168.1.0 any
WAE(config-std-nacl)# exit
The following commands activate the standard access list for an interface:
WAE(config)# interface gigabitethernet 1/0
WAE(config-if)# ip access-group teststdacl in
The following example shows how this configuration appears when you enter the show running-configuration command:
interface GigabitEthernet 1/0
ip address 10.1.1.50 255.255.0.0
ip access-group teststdacl in
ip access-list standard example
Related Commands
(config-std-nacl) delete
(config-std-nacl) list
(config-std-nacl) move
(config-std-nacl) permit
(config-std-nacl) exit
To terminate standard ACL configuration mode and return to the global configuration mode, use the exit command.
exit
Syntax Description
This command has no arguments or keywords.
Defaults
No default behavior or values
Command Modes
All modes
Device Modes
application-accelerator
central-manager
Examples
The following example terminates standard ACL configuration mode and returns to global configuration mode:
WAE(config-std-nacl)# exit
(config-std-nacl) list
To display a list of specified entries within the standard IP ACL, use the list command.
list [start-line-num [end-line-num]]
Syntax Description
start-line-num |
(Optional) Line number from which the list begins. |
end-line-num |
(Optional) Last line number in the list. |
Command Modes
Standard ACL configuration mode
Device Modes
application-accelerator
central-manager
Examples
The following example displays a list of specified entries within the standard IP ACL:
WAE(config)# ip access-list standard teststdacl
WAE(config-std-nacl)# list 25 50
Related Commands
(config-std-nacl) delete
(config-std-nacl) move
(config-std-nacl) move
To move a line to a new position within the standard IP ACL, use the move command.
move old-line-num new-line-num
Syntax Description
old-line-num |
Line number of the entry to move. |
new-line-num |
New position of the entry. The existing entry is moved to the following position in the access list. |
Command Modes
Standard ACL configuration mode
Device Modes
application-accelerator
central-manager
Examples
The following example moves a line to a new position within the standard IP ACL:
WAE(config)# ip access-list standard teststdacl
WAE(config-std-nacl)# move 25 30
Related Commands
(config-std-nacl) delete
(config-std-nacl) list
(config-std-nacl) permit
To add a line to a standard access-list that specifies the type of packets that you want the WAAS device to accept for further processing, use the permit command.
[insert line-num] permit {source-ip [wildcard] | host source-ip | any}
To negate a standard IP ACL, use the following syntax.
no permit {source-ip [wildcard] | host source-ip | any}
Syntax Description
insert |
(Optional) Inserts the conditions following the specified line number into the access list. |
line-num |
Entry at a specific line number in the access list. |
source-ip |
Source IP address. The number of the network or host from which the packet is being sent, specified as a 32-bit quantity in 4-part dotted-decimal format (for example, 0.0.0.0). |
wildcard |
(Optional) Portions of the preceding IP address to match, expressed using 4-digit, dotted-decimal notation. Bits to match are identified by a digital value of 0; bits to ignore are identified by a 1. Note For standard IP ACLs, the wildcard parameter of the ip access-list command is always optional. If the host keyword is specified for a standard IP ACL, then the wildcard parameter is not allowed. |
host |
Matches the following IP address. |
any |
Matches any IP address. |
Defaults
An access list drops all packets unless you configure at least one permit entry.
Command Modes
Standard ACL configuration mode
Device Modes
application-accelerator
central-manager
Usage Guidelines
To create an entry, use a deny or permit keyword and specify the type of packets that you want the WAAS device to drop or to accept for further processing. By default, an access list denies everything because the list is terminated by an implicit deny any entry. Therefore, you must include at least one permit entry to create a valid access list.
You typically use a standard access list to allow connections from a host with a specific IP address or from hosts on a specific network. To allow connections from a specific host, use the permit host source-ip option and replace source-ip with the IP address of the specific host.
To allow connections from a specific network, use the permit host source-ip wildcard option. Replace source-ip with a network ID or the IP address of any host on the network that you want to specify. Replace wildcard with the dotted decimal notation for a mask that is the reverse of a subnet mask, where a 0 indicates a position that must be matched and a 1 indicates a position that does not matter. For instance, the wildcard 0.0.0.255 causes the last eight bits in the source IP address to be ignored. Therefore, the permit 192.168.1.0 0.0.0.255 entry allows access from any host on the 192.168.1.0 network.
Examples
The following example creates standard access-list that permits any packets from source IP address 192.168.1.0 for further processing:
WAE(config)# ip access-list standard teststdacl
WAE(config-std-nacl)# permit 192.168.1.0 any
WAE(config-std-nacl)# exit
The following commands activate the standard access list for an interface:
WAE(config)# interface gigabitethernet 1/0
WAE(config-if)# ip access-group teststdacl in
The following example shows how this configuration appears when you enter the show running-configuration command:
interface GigabitEthernet 1/0
ip address 10.1.1.50 255.255.0.0
ip access-group teststdacl in
ip access-list standard example
Related Commands
(config-std-nacl) delete
(config-std-nacl) deny
(config-std-nacl) list
(config-std-nacl) move