User Guide for Cisco Security Manager 3.1
PIX/ASA/FWSM Platform User Interface Reference

Table Of Contents

PIX/ASA/FWSM Platform User Interface Reference

NAT Policies

Address Pools Page

Address Pool Dialog Box

Translation Options Page

Translation Rules Page

Translation Exemptions (NAT 0 ACL) Tab

Dynamic Rules Tab

Policy Dynamic Rules Tab

Static Rules Tab

General Tab

Add/Edit Translation Exemption (NAT-0 ACL) Rule Dialog Box

Add/Edit Dynamic Translation Rule Dialog Box

Add/Edit Policy Dynamic Rules Dialog Box

Add/Edit Static Rule Dialog Box

Advanced NAT Options Dialog Box

Select Address Pool Dialog Box

Interfaces Page

Add/Edit Interface Dialog Box

Advanced Interface Settings Dialog Box

Add VPND Group Dialog Box

PPPoE Users Dialog Box

FWSM Interfaces Page

FWSM Add/Edit Interface Dialog Box

Add/Edit Bridge Group Dialog Box

ASA 5505 Ports and Interfaces Page

Configure Hardware Ports Dialog Box

Bridging

ARP Table Page

Add/Edit ARP Table Entry Dialog Box

ARP Inspection Page

Add/Edit ARP Inspection Dialog Box

MAC Address Table Page

Add/Edit MAC Table Entry Dialog Box

MAC Learning Page

Add/Edit MAC Learning Dialog Box

Management IP Page

AAA Page

Authentication Tab

Authorization Tab

Accounting Tab

Banner Page

Boot Image/Configuration Page

Images Dialog Box

Clock Page

Credentials Page

CPU Threshold Page

Device Access

Console Page

HTTP Page

HTTP Configuration Dialog Box

ICMP Page

ICMP Configuration Dialog Box

Management Access Page

Secure Shell Page

SSH Configuration Dialog Box

SNMP Page

SNMP Trap Configuration Dialog Box

Add SNMP Host Access Entry Dialog Box

Telnet Page

Telnet Configuration Dialog Box

Failover Policies

Failover Page (PIX 6.x)

Edit Failover Interface Configuration Dialog Box (PIX 6.x)

Failover Page (FWSM)

Advanced Settings Dialog Box

Edit Failover Interface Configuration Dialog Box (FWSM)

Failover Page (ASA/PIX 7.x)

Settings Dialog Box

Add Failover Group Dialog Box

Edit Failover Interface Configuration Dialog Box (ASA/PIX 7.x)

Add Interface MAC Address Dialog Box

Bootstrap Configuration for LAN Failover Dialog Box

Hostname Page

Resources Page

Add/Edit Resource Dialog Box

Server Access

AUS Page

DHCP Relay Page

Configure DHCP Relay Agent Parameters Dialog Box

Configure DHCP Server Parameters Dialog Box

DHCP Server Page

Edit DHCP Server Dialog Box

DHCP Server - Advanced Dialog Box

DNS Page

Add DNS Server Group Dialog Box

Add DNS Server Dialog Box

Edit Interfaces Dialog Box

DDNS Page

NTP Page

NTP Server Configuration Dialog Box

SMTP Server Page

TFTP Server Page

User Accounts Page

Add/Edit User Account Dialog Box

Logging Policies

E-Mail Setup Page

Add/Edit Email Recipient Dialog Box

Event Lists Page

Add/Edit Event List Dialog Box

Add/Edit Syslog Class Dialog Box

Add/Edit Syslog Message ID Filter Dialog Box

Logging Filters Page

Edit Logging Filters Dialog Box

Logging Setup Page

Rate Limit Page

Add/Edit Rate Limit for Syslog Logging Levels Dialog Box

Add/Edit Rate Limited Syslog Message Dialog Box

Server Setup Page

Add/Edit Syslog Message Dialog Box

Syslog Servers Page

Add/Edit Syslog Server Dialog Box

Multicast Policies

Enable Multicast Routing Page

IGMP Page

Protocol Tab

Configure IGMP Parameters Dialog Box

Access Group Tab

Configure IGMP Access Group Parameters Dialog Box

Static Group Tab

Configure IGMP Static Group Parameters Dialog Box

Join Group Tab

Configure IGMP Join Group Parameters Dialog Box

Multicast Routing Page

Add/Edit MRoute Configuration Dialog Box

PIM Page

Protocol Tab

Add/Edit PIM Protocol Dialog Box

Rendezvous Points Tab

Add/Edit Rendezvous Point Dialog Box

Add/Edit Multicast Groups Dialog Box

Route Tree Tab

Multicast Group Dialog Box

Request Filter Tab

Multicast Group Dialog Box

Routing Policies

No Proxy ARP Page

Edit Interfaces Dialog Box

OSPF Page

General Tab

OSPF Advanced Dialog Box

Area Tab

Add/Edit Area/Area Networks Dialog Box

Range Tab

Add/Edit Area Range Network Dialog Box

Neighbors Tab

Add/Edit Static Neighbor Dialog Box

Redistribution Tab

Redistribution Dialog Box

Virtual Link Tab

Add/Edit OSPF Virtual Link Configuration Dialog Box

Add/Edit OSPF Virtual Link MD5 Configuration Dialog Box

Filtering Tab

Add/Edit Filtering Dialog Box

Summary Address Tab

Add/Edit Summary Address Dialog Box

Interface Tab

Add/Edit Interface Dialog Box

RIP Page

Add/Edit RIP Configuration Dialog Box

Static Route Page

Add/Edit Static Route Dialog Box

Security Policies

General Page

Add/Edit General Security Configuration Dialog Box

Timeouts Page

Service Policy Rules

Priority Queues Page

Priority Queue Configuration Dialog Box

IPS, QoS, and Connection Rules Page

Insert/Edit Service Policy (MPC) Rule Wizard

Interfaces Selector Dialog Boxes

User Preferences

Deployment Page

Security Contexts Page

Add/Edit Security Context Dialog Box (FWSM)

Add/Edit Security Context Dialog Box (PIX/ASA)

Allocate Interfaces Dialog Box

View Interface Allocation Dialog Box


PIX/ASA/FWSM Platform User Interface Reference


The following topics describe the pages available for configuring policies for PIX Firewalls, Firewall Services Modules, and Adaptive Security Appliances. These pages are primarily organized under the Platform folder for firewall devices in Device view and under the PIX/ASA/FWSM Platform folder for shared policies in Policy view. The pages available in Cisco Security Manager for configuring and managing platform-specific policies on PIX/ASA/FWSM devices are discussed in the following topics:

NAT Policies

Address Pools Page

Translation Options Page

Translation Rules Page

Translation Exemptions (NAT 0 ACL) Tab

Dynamic Rules Tab

Policy Dynamic Rules Tab

Static Rules Tab

General Tab

Interfaces

Interfaces Page

FWSM Interfaces Page

ASA 5505 Ports and Interfaces Page

Bridging

ARP Table Page

ARP Inspection Page

MAC Address Table Page

MAC Learning Page

Management IP Page

Device Admin Policies

AAA Page

Authentication Tab

Authorization Tab

Accounting Tab

Banner Page

Boot Image/Configuration Page

Clock Page

Credentials Page

CPU Threshold Page

Device Access

Console Page

HTTP Page

ICMP Page

Management Access Page

Secure Shell Page

SNMP Page

Telnet Page

Failover Policies

Hostname Page

Resources Page

Server Access

AUS Page

DHCP Relay Page

DHCP Server Page

DNS Page

DDNS Page

NTP Page

SMTP Server Page

TFTP Server Page

User Accounts Page

Logging Policies

E-Mail Setup Page

Event Lists Page

Logging Filters Page

Logging Setup Page

Rate Limit Page

Server Setup Page

Syslog Servers Page

Multicast Policies

Enable Multicast Routing Page

IGMP Page

Protocol Tab

Access Group Tab

Static Group Tab

Join Group Tab

Multicast Routing Page

PIM Page

Protocol Tab

Rendezvous Points Tab

Route Tree Tab

Request Filter Tab

Routing Policies

No Proxy ARP Page

OSPF Page

General Tab

Area Tab

Range Tab

Neighbors Tab

Redistribution Tab

Virtual Link Tab

Filtering Tab

Summary Address Tab

Interface Tab

RIP Page

Static Route Page

Security Policies

General Page

Timeouts Page

Service Policy Rules

Priority Queues Page

IPS, QoS, and Connection Rules Page

User Preferences

Deployment Page

Security Contexts Page

NAT Policies

The NAT section consists of the following pages:

Address Pools Page

Translation Options Page

Translation Rules Page

Translation Exemptions (NAT 0 ACL) Tab

Dynamic Rules Tab

Policy Dynamic Rules Tab

Static Rules Tab

General Tab

Address Pools Page

Use the Address Pools page to view, define, or delete global address pools used in dynamic NAT rules.

Navigation Path

(Device view) Select NAT > Address Pools from the Device Policy selector.

(Policy view) Select NAT (PIX) > Address Pools from the Policy Type selector. Right-click Address Pools to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

NAT Policies

Field Reference

Table L-1 Address Pools Page 

Element
Description
Global Address Pools table

Interface

Displays the name of the firewall device interface to which the address pool applies.

ID

Displays the identification number of the address pool.

IP Address(es)

Displays the type and value of the addresses for the pool.

Description

Displays the description of the address pool.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Address Pool Dialog Box

Use the Address Pools dialog box to define new or edit existing global address pools used in dynamic NAT rules.

Navigation Path

You can access the Address Pools dialog box from the Address Pools page. For more information about the Address Pools page, see Address Pools Page.

Related Topics

NAT Policies

Address Pools Page

Field Reference

Table L-2 Address Pools Dialog Box 

Element
Description

Interface Name

Enter the name of the firewall device interface to which the address pool applies.

Pool ID

Enter the identification number of the address pool. When configuring dynamic NAT, you select the pool ID that represents the addresses you want to use for translation.

IP address ranges

Enter the addresses to be used for this address pool. You can specify the addresses to use for this pool in the following ways:

Address range (for example, 192.168.1.1-192.168.1.15)

Subnetwork (for example, 192.168.1.0/24)

List of addresses separated by a comma (for example, 192.168.1.1, 192.168.1.2, 192.168.1.3)

Single address to use for PAT (192.168.1.1)

Combination of the above (192.168.1.1-192.168.1.15, 192.168.1.25)

Description

Enter a description for the address pool.

Enable Interface PAT

When selected, enables port address translation on the specified interface.


Translation Options Page

Use the Translation Options page to configure settings that affect network address translation for a security appliance. These settings apply to all interfaces on the device.

Navigation Path

(Device view) Select NAT > Translation Options from the Device Policy selector.

(Policy view) Select NAT (PIX) > Translation Options from the Policy Type selector. Right-click Translation Options to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

NAT Policies

Field Reference

Table L-3 Translation Options Page 

Element
Description

Enable traffic through the firewall without address translation

When selected, allows traffic to pass through the security appliance without address translation. If this option is not selected, any traffic that does not match a translation rule will be dropped.

Note This option is only available on PIX 7.x, FWSM 3.x, and ASA devices.

Do not translate VPN traffic

When selected, allows VPN traffic to pass through the security appliance without address translation.


Translation Rules Page

Use the Translation Rules page to define your address translation rules. The Translation Rules page consists of the following tabs:

Translation Exemptions (NAT 0 ACL) Tab

Dynamic Rules Tab

Policy Dynamic Rules Tab

Static Rules Tab

General Tab

Navigation Path

(Device view) Select NAT > Translation Rules from the Device Policy selector.

(Policy view) Select NAT (PIX) > Translation Rules from the Policy Type selector. Right-click Translation Rules to create a policy, or select an existing policy from the Shared Policy selector.

Translation Exemptions (NAT 0 ACL) Tab

Use the Translation Exemptions (NAT 0 ACL) tab to specify traffic that is exempt from address translation.


Note Translation exemptions are only supported by PIX/ASA/FWSM devices in router mode and FWSM 3.2 devices in transparent mode. Other devices in transparent mode support only static translation rules.


Navigation Path

You can access the Translation Exemptions (NAT 0 ACL) tab from the Translation Rules page. For more information about the Translation Rules page, see Translation Rules Page.

Related Topics

NAT Policies

Translation Rules Page

Add/Edit Translation Exemption (NAT-0 ACL) Rule Dialog Box

Advanced NAT Options Dialog Box

Field Reference

Table L-4 Translation Exemptions (NAT 0 ACL) Tab 

Element
Description

Filter

Click the arrow to display the filtering bar, which enables you to filter the information displayed in the table. For more information, see Filtering Tables, page 3-26.

Default Translation Exemptions (NAT 0 ACL) Rules Table

Enabled

Indicates whether a rule is enabled or not.

Action

Displays whether a rule is exempt or not exempt from NAT.

Original Interface

Displays the interface on which the rule is applied.

Original Address

Displays the source addresses of the hosts or networks to which the rule applies.

Destination

Displays the destination addresses of the hosts or networks to which the rule applies.

Direction

Displays the direction in which the rule is applied.

DNS Rewrite
(FWSM only)

Displays whether the DNS Rewrite option is enabled or not. The DNS Rewrite option lets the security appliance rewrite the DNS record so that an outside client can resolve the name of an inside host using an inside DNS server, or vice versa. For example, assume an inside web server www.example.com has IP 192.168.1.1, it is translated to 10.1.1.1 on the outside interface. An outside client sends a DNS request to an inside DNS server, which will resolve www.example.com to 192.168.1.1. When the reply comes to the security appliance with DNS Rewrite enabled, the security appliance will translate the IP address in the payload to 10.1.1.1, so that the outside client will get the correct IP address.

 

Maximum TCP Connection
(FWSM only)

Displays the maximum number of TCP connections that are allowed to connect to the statically translated IP address. Valid options are 0 through 65,535. If this value is set to zero, the number of connections is unlimited.

Embryonic Limit
(FWSM only)

Displays the number of embryonic connections allowed to form before the security appliance begins to deny these connections. Set this limit to prevent attack by a flood of embryonic connections. An embryonic connection is one that has been started but has not yet been established, such as a three-way TCP handshake state. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited. A positive number enables the TCP Intercept feature.

Maximum UDP Connection
(FWSM only)

Displays the maximum number of UDP connections that are allowed to connect to the statically translated IP address. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited.

Randomize Sequence Number
(FWSM only)

Displays whether the security appliance will randomize the sequence number of TCP packets. Disable this feature only if another inline security appliance is also randomizing sequence numbers and the result is scrambling the data. Disabling this option opens a security hole in the security appliance. This feature is enabled by default.

Category

Displays the category to which the rule is assigned. Categories provide an intermediate level of detail to objects and help you readily identify rules and objects by use of color-coding.

To define categories, select Tools > Policy Object Manager > Category.

Note No commands are generated for the category attribute.

Description

If a description of the rule is available, it is displayed in this column.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Dynamic Rules Tab

Use the Dynamic Rules tab to configure dynamic NAT and PAT.


Note Dynamic translation rules are only supported by PIX/ASA/FWSM devices in router mode and FWSM 3.2 devices in transparent mode. Other devices in transparent mode support only static translation rules.


Navigation Path

You can access the Dynamic Rules tab from the Translation Rules page. For more information about the Translation Rules page, see Translation Rules Page.

Related Topics

NAT Policies

Add/Edit Dynamic Translation Rule Dialog Box

Advanced NAT Options Dialog Box

Select Address Pool Dialog Box

Field Reference

Table L-5 Dynamic Rules Tab 

Element
Description

Filter

Click the arrow to display the filtering bar, which enables you to filter the information displayed in the table. For more information, see Filtering Tables, page 3-26.

Dynamic Rules Table

Enabled

Indicates whether a rule is enabled or not.

Original Interface

Displays the interface on which the rule is applied.

Original Address

Displays the source addresses of the hosts or networks to which the rule applies.

Translated Pool

Displays the ID number of the address pool used for translation.

Direction

Displays the direction in which the rule is applied.

DNS Rewrite

Displays whether the DNS Rewrite option is enabled or not. The DNS Rewrite option lets the security appliance rewrite the DNS record so that an outside client can resolve the name of an inside host using an inside DNS server, or vice versa. For example, assume an inside web server www.example.com has IP 192.168.1.1, it is translated to 10.1.1.1 on the outside interface. An outside client sends a DNS request to an inside DNS server, which will resolve www.example.com to 192.168.1.1. When the reply comes to the security appliance with DNS Rewrite enabled, the security appliance will translate the IP address in the payload to 10.1.1.1, so that the outside client will get the correct IP address.

Maximum TCP Connection

Displays the maximum number of TCP connections that are allowed to connect to the statically translated IP address. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited.

Embryonic Limit

Displays the number of embryonic connections allowed to form before the security appliance begins to deny these connections. Set this limit to prevent attack by a flood of embryonic connections. An embryonic connection is one that has been started but has not yet been established, such as a three-way TCP handshake state. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited. A positive number enables the TCP Intercept feature.

Maximum UDP Connection

Displays the maximum number of UDP connections that are allowed to connect to the statically translated IP address. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited.

Randomize Sequence Number

Displays whether the security appliance will randomize the sequence number of TCP packets. Disable this feature only if another inline security appliance is also randomizing sequence numbers and the result is scrambling the data. Disabling this option opens a security hole in the security appliance. This feature is enabled by default.

Category

Displays the category to which the rule is assigned. Categories provide an intermediate level of detail to objects and help you readily identify rules and objects by use of color-coding.

To define categories, select Tools > Policy Object Manager > Category.

Note No commands are generated for the category attribute.

Description

If a description of the rule is available, it is displayed in this column.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Policy Dynamic Rules Tab

Use the Policy Dynamic Rules tab to configure dynamic translation rules based on source and destination addresses/ports.


Note Policy dynamic rules are only supported by PIX/ASA/FWSM devices in router mode and FWSM 3.2 devices in transparent mode. Other devices in transparent mode support only static translation rules.


Navigation Path

You can access the Policy Dynamic Rules tab from the Translation Rules page. For more information about the Translation Rules page, see Translation Rules Page.

Related Topics

NAT Policies

Add/Edit Policy Dynamic Rules Dialog Box

Advanced NAT Options Dialog Box

Select Address Pool Dialog Box

Field Reference

Table L-6 Policy Dynamic Rules Tab 

Element
Description

Filter

Click the arrow to display the filtering bar, which enables you to filter the information displayed in the table. For more information, see Filtering Tables, page 3-26.

Policy Dynamic Rules Table

Enabled

Indicates whether a rule is enabled or not.

Original Interface

Displays the interface on which the rule is applied.

Original Address

Displays the source address of the host or network to which the rule applies.

Translated Pool

Displays the ID number of the address pool used for translation.

Destination

Displays the destination addresses of the hosts or networks to which the rule applies.

Service

Displays the services to which the rule applies.

Direction

Displays the direction in which the rule is applied.

DNS Rewrite

Displays whether the DNS Rewrite option is enabled or not. The DNS Rewrite option lets the security appliance rewrite the DNS record so that an outside client can resolve the name of an inside host using an inside DNS server, or vice versa. For example, assume an inside web server www.example.com has IP 192.168.1.1, it is translated to 10.1.1.1 on the outside interface. An outside client sends a DNS request to an inside DNS server, which will resolve www.example.com to 192.168.1.1. When the reply comes to the security appliance with DNS Rewrite enabled, the security appliance will translate the IP address in the payload to 10.1.1.1, so that the outside client will get the correct IP address.

Maximum TCP Connection

Displays the maximum number of TCP connections that are allowed to connect to the statically translated IP address. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited.

Embryonic Limit

Displays the number of embryonic connections allowed to form before the security appliance begins to deny these connections. Set this limit to prevent attack by a flood of embryonic connections. An embryonic connection is one that has been started but has not yet been established, such as a three-way TCP handshake state. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited. A positive number enables the TCP Intercept feature.

Maximum UDP Connection

Displays the maximum number of UDP connections that are allowed to connect to the statically translated IP address. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited.

Randomize Sequence Number

Displays whether the security appliance will randomize the sequence number of TCP packets. Disable this feature only if another inline security appliance is also randomizing sequence numbers and the result is scrambling the data. Disabling this option opens a security hole in the security appliance. This feature is enabled by default.

Category

Displays the category to which the rule is assigned. Categories provide an intermediate level of detail to objects and help you readily identify rules and objects by use of color-coding.

To define categories, select Tools > Policy Object Manager > Category.

Note No commands are generated for the category attribute.

Description

If a description of the rule is available, it is displayed in this column.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Static Rules Tab

Use the Static Rules tab to configure static translation rules for a firewall device or shared policy.

Navigation Path

You can access the Static Rules tab from the Translation Rules page. For more information about the Translation Rules page, see Translation Rules Page.

Related Topics

NAT Policies

Add/Edit Static Rule Dialog Box

Advanced NAT Options Dialog Box

Field Reference

Table L-7 Static Rules Tab 

Element
Description

Filter

Click the arrow to display the filtering bar, which enables you to filter the information displayed in the table. For more information, see Filtering Tables, page 3-26.

Original Interface

Displays the interface on which the original addresses reside.

Original Address

Displays the source network on which the traffic to be translated resides.

Local Port

For static PAT, displays the port number supplied by the host/network.

Translated Interface

Displays the interface on which the translated addresses reside.

Translated Address

Displays the translated addresses.

Global Port

For static PAT, displays the port number to which the original port number will be translated.

Destination

Displays the destination addresses of the hosts or networks to which the rule applies.

Service

Displays the service to which the rule applies.

Protocol

Displays the protocol to which the rule applies.

DNS Rewrite

Displays whether the DNS Rewrite option is enabled or not. The DNS Rewrite option lets the security appliance rewrite the DNS record so that an outside client can resolve the name of an inside host using an inside DNS server, or vice versa. For example, assume an inside web server www.example.com has IP 192.168.1.1, it is translated to 10.1.1.1 on the outside interface. An outside client sends a DNS request to an inside DNS server, which will resolve www.example.com to 192.168.1.1. When the reply comes to the security appliance with DNS Rewrite enabled, the security appliance will translate the IP address in the payload to 10.1.1.1, so that the outside client will get the correct IP address.

Maximum TCP Connection

Displays the maximum number of TCP connections that are allowed to connect to the statically translated IP address. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited.

Embryonic Limit

Displays the number of embryonic connections allowed to form before the security appliance begins to deny these connections. Set this limit to prevent attack by a flood of embryonic connections. An embryonic connection is one that has been started but has not yet been established, such as a three-way TCP handshake state. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited. A positive number enables the TCP Intercept feature.

Maximum UDP Connection

Displays the maximum number of UDP connections that are allowed to connect to the statically translated IP address. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited.

Timeout

For PIX 6.x devices, this column shows the timeout value for a static translation rule. This timeout value overrides the translation timeout specified in Platform > Security > Timeouts. A timeout value of 00:00:00 means that translations matching this rule should use the default translation timeout specified in Platform > Security > Timeouts.

Randomize Sequence Number

Displays whether the security appliance will randomize the sequence number of TCP packets. Disable this feature only if another inline security appliance is also randomizing sequence numbers and the result is scrambling the data. Disabling this option opens a security hole in the security appliance. This feature is enabled by default.

Nailed

Indicates whether the rule allows stateless TCP sessions for asymmetrically routed traffic.

Category

Displays the category to which the rule is assigned. Categories provide an intermediate level of detail to objects and help you readily identify rules and objects by use of color-coding.

To define categories, select Tools > Policy Object Manager > Category.

Note No commands are generated for the category attribute.

Description

If a description of the rule is available, it is displayed in this column.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


General Tab

Use the General tab to view all translation rules. The translation rules are listed in the order that they will be evaluated on the device.


Note The General tab is only visible for PIX/ASA/FWSM devices in router mode and FWSM 3.2 devices in transparent mode. Other devices in transparent mode support only static translation rules and, therefore, do not need to display the summary information.


Navigation Path

You can access the General tab from the Translation Rules page. For more information about the Translation Rules page, see Translation Rules Page.

Related Topics

NAT Policies

Field Reference

Table L-8 General Tab 

Element
Description

Filter

Click the arrow to display the filtering bar, which enables you to filter the information displayed in the table. For more information, see Filtering Tables, page 3-26.

Translation Rules Summary Table

Type

Displays the translation rule type.

Enabled

Indicates whether a rule is enabled or not.

Action

Displays whether a rule is exempt or not exempt from NAT.

Original Interface

Displays the interface on which the rule is applied.

Original Address

Displays the source addresses of the hosts or networks to which the rule applies.

Local Port

For static PAT, displays the port number supplied by the host/network.

Translated Pool

Displays the ID number of the address pool used for translation.

Translated Interface

Displays the interface on which the translated addresses reside.

Translated Address

Displays the translated addresses.

Global Port

For static PAT, displays the port number to which the original port number will be translated.

Destination

Displays the destination addresses of the hosts or networks to which the rule applies.

Protocol

Displays the protocol to which the rule applies.

Service

Displays the service to which the rule applies.

Direction

Displays the direction in which the rule is applied.

DNS Rewrite

Displays whether the DNS Rewrite option is enabled or not. The DNS Rewrite option lets the security appliance rewrite the DNS record so that an outside client can resolve the name of an inside host using an inside DNS server, or vice versa. For example, assume an inside web server www.example.com has IP 192.168.1.1, it is translated to 10.1.1.1 on the outside interface. An outside client sends a DNS request to an inside DNS server, which will resolve www.example.com to 192.168.1.1. When the reply comes to the security appliance with DNS Rewrite enabled, the security appliance will translate the IP address in the payload to 10.1.1.1, so that the outside client will get the correct IP address.

Maximum TCP Connection

Displays the maximum number of TCP connections that are allowed to connect to the statically translated IP address. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited.

Embryonic Limit

Displays the number of embryonic connections allowed to form before the security appliance begins to deny these connections. Set this limit to prevent attack by a flood of embryonic connections. An embryonic connection is one that has been started but has not yet been established, such as a three-way TCP handshake state. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited. A positive number enables the TCP Intercept feature.

Maximum UDP Connection

Displays the maximum number of UDP connections that are allowed to connect to the statically translated IP address. Valid values are 0 through 65535. If this value is set to zero, the number of connections is unlimited.

Timeout

For PIX 6.x devices, this column shows the timeout value for a static translation rule. This timeout value overrides the translation timeout specified in Platform > Security > Timeouts. A timeout value of 00:00:00 means that translations matching this rule should use the default translation timeout specified in Platform > Security > Timeouts.

Randomize Sequence Number

Displays whether the security appliance will randomize the sequence number of TCP packets. Disable this feature only if another inline security appliance is also randomizing sequence numbers and the result is scrambling the data. Disabling this option opens a security hole in the security appliance. This feature is enabled by default.

Category

Displays the category to which the rule is assigned. Categories provide an intermediate level of detail to objects and help you readily identify rules and objects by use of color-coding.

To define categories, select Tools > Policy Object Manager > Category.

Note No commands are generated for the category attribute.

Description

If a description of the rule is available, it is displayed in this column.


Add/Edit Translation Exemption (NAT-0 ACL) Rule Dialog Box

Use the Add/Edit Translation Exemption (NAT-0 ACL) Rule dialog box to add or edit translation exemption rules.

Navigation Path

You can access the Add/Edit Translation Exemption (NAT-0 ACL) Rule dialog box from the Translation Exemptions (NAT 0 ACL) tab. For more information about the Translation Exemptions (NAT 0 ACL) tab, see Translation Exemptions (NAT 0 ACL) Tab.

Related Topics

NAT Policies

Translation Rules Page

Translation Exemptions (NAT 0 ACL) Tab

Advanced NAT Options Dialog Box

Field Reference

Table L-9 Add/Edit Translation Exemption (NAT-0 ACL) Rule Dialog Box 

Element
Description

Enable Rule

Specify whether the rule is enabled or not.

Action

Select the action for this rule:

exempt—The rule identifies traffic that is exempt from NAT.

do not exempt—The rules identifies traffic that is not exempt from NAT.

Original Interface

Specify the interface on which the rule is applied.

Original Address

Specify the source addresses of the hosts or networks to which the rule applies.

Translated Direction

Select the direction in which the rule is applied.

Traffic flow Destinations

Specify the destination addresses of the hosts or networks to which the rule applies.

Category

To assign the rule to a category, select the category from the list. Categories provide an intermediate level of detail to objects and help you readily identify rules and objects by use of color-coding.

To define categories, select Tools > Policy Object Manager > Category.

Note No commands are generated for the category attribute.

Description

Enter a description of the rule.

Advanced button
(FWSM only)

Click to display the Advanced NAT Options dialog box to configure advanced settings for this rule.


Add/Edit Dynamic Translation Rule Dialog Box

Use the Add/Edit Dynamic Translation Rule dialog box to add or edit dynamic NAT and PAT rules.

Navigation Path

You can access the Add/Edit Dynamic Translation Rule dialog box from the Dynamic Rules tab. For more information about the Dynamic Rules tab, see Dynamic Rules Tab.

Related Topics

NAT Policies

Translation Rules Page

Dynamic Rules Tab

Advanced NAT Options Dialog Box

Select Address Pool Dialog Box

Field Reference

Table L-10 Add/Edit Dynamic Translation Rule Dialog Box 

Element
Description

Enable Rule

Specify whether the rule is enabled or not.

Original Interface

Displays the interface on which the rule is applied.

Original Address

Displays the source addresses of the hosts or networks to which the rule applies.

Translated Pool

Displays the ID number of the address pool used for translation.

Translated Direction

Select the direction in which the rule is applied.

Category

To assign the rule to a category, select the category from the list. Categories provide an intermediate level of detail to objects and help you readily identify rules and objects by use of color-coding.

To define categories, select Tools > Policy Object Manager > Category.

Note No commands are generated for the category attribute.

Description

Enter a description of the rule.

Advanced button

Click to display the Advanced NAT Options dialog box to configure advanced settings for this rule.


Add/Edit Policy Dynamic Rules Dialog Box

Use the Add/Edit Policy Dynamic Rules dialog box to add or edit dynamic translation rules based on source and destination addresses/ports.

Navigation Path

You can access the Add/Edit Policy Dynamic Rules dialog box from the Policy Dynamic Rules tab. For more information about the Policy Dynamic Rules tab, see Policy Dynamic Rules Tab.

Related Topics

NAT Policies

Translation Rules Page

Policy Dynamic Rules Tab

Advanced NAT Options Dialog Box

Select Address Pool Dialog Box

Field Reference

Table L-11 Add/Edit Policy Dynamic Rules Dialog Box 

Element
Description

Enable Rule

Specify whether the rule is enabled or not.

Original Interface

Specify the interface on which the rule is applied.

Original Address

Specify the source address of the host or network to which the rule applies.

Translated Pool

Enter the ID number of the address pool used for translation.

Translated Direction

Select the direction in which the rule is applied.

Traffic flow Destinations

Specify the destination addresses of the hosts or networks to which the rule applies.

Traffic flow Services

Specify the services to which the rule applies.

Category

To assign the rule to a category, select the category from the list. Categories provide an intermediate level of detail to objects and help you readily identify rules and objects by use of color-coding.

To define categories, select Tools > Policy Object Manager > Category.

Note No commands are generated for the category attribute.

Description

Enter a description of the rule.

Advanced button

Click to display the Advanced NAT Options dialog box to configure advanced settings for this rule.


Add/Edit Static Rule Dialog Box

Use the Add/Edit Static Rule dialog box to add or edit static translation rules for a firewall device or shared policy.

Navigation Path

You can access the Add/Edit Static Rule dialog box from the Static Rules tab. For more information about the Static Rules tab, see Static Rules Tab.

Related Topics

NAT Policies

Translation Rules Page

Static Rules Tab

Advanced NAT Options Dialog Box

Field Reference

Table L-12 Add/Edit Static Rule Dialog Box 

Element
Description

Enable Rule

Specify whether the rule is enabled or not.

Translation Type

Select the type of translation, NAT or PAT, for this rule.

Original Interface

Specify the interface on which the original addresses reside.

Original Address

Specify the source network on which the traffic to be translated resides.

Translated Interface

Specify the interface on which the translated addresses reside.

Translated Address

Specify the translated addresses.

Enable Policy NAT

Select this option to enable policy NAT for this translation rule.

Dest Address

For policy NAT, specify the destination addresses of the hosts or networks to which the rule applies.

Service

For policy NAT, specify the services to which the rule applies.

Protocol

For PAT, select the protocol, TCP or UDP, to which the rule applies.

Original Port

For PAT, enter the port number to be translated.

Translated Port

For PAT, enter the port number to which the original port number will be translated.

Category

To assign the rule to a category, select the category from the list. Categories provide an intermediate level of detail to objects and help you readily identify rules and objects by use of color-coding.

To define categories, select Tools > Policy Object Manager > Category.

Note No commands are generated for the category attribute.

Description

Enter a description of the rule.

Advanced button

Click to display the Advanced NAT Options dialog box to configure advanced settings for this rule.


Advanced NAT Options Dialog Box

Use the Advanced NAT Options dialog box to configure the DNS Rewrite, Maximum Connections, Embryonic Limit, and Randomize Sequence Number settings for NAT and Policy NAT. You can also configure these options for NAT 0 ACL rules on a FWSM.

Navigation Path

You can access the Advanced NAT Options dialog box by clicking the Advanced button when adding or editing a translation rule. See the following topics for more information:

Add/Edit Translation Exemption (NAT-0 ACL) Rule Dialog Box

Add/Edit Dynamic Translation Rule Dialog Box

Add/Edit Policy Dynamic Rules Dialog Box

Add/Edit Static Rule Dialog Box

Related Topics

NAT Policies

Translation Rules Page

Add/Edit Translation Exemption (NAT-0 ACL) Rule Dialog Box

Add/Edit Dynamic Translation Rule Dialog Box

Add/Edit Policy Dynamic Rules Dialog Box

Add/Edit Static Rule Dialog Box

Field Reference

Table L-13 Advanced NAT Options Dialog Box 

Element
Description

Translate the DNS replies that match the translation rule

When selected, the security appliance rewrites the DNS record so that an outside client can resolve the name of an inside host using an inside DNS server, or vice versa. For example, assume an inside web server www.example.com has IP 192.168.1.1, it is translated to 10.1.1.1 on the outside interface. An outside client sends a DNS request to an inside DNS server, which will resolve www.example.com to 192.168.1.1. When the reply comes to the security appliance with DNS Rewrite enabled, the security appliance will translate the IP address in the payload to 10.1.1.1, so that the outside client will get the correct IP address.

Max TCP Connections per Rule

Enter the maximum number of TCP connections that are allowed to connect to the statically translated IP address. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited.

Max UDP Connections per Rule

Enter the maximum number of UDP connections that are allowed to connect to the statically translated IP address. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited.

Max Embryonic Connections

Enter the number of embryonic connections allowed to form before the security appliance begins to deny these connections. Set this limit to prevent attack by a flood of embryonic connections. An embryonic connection is one that has been started but has not yet been established, such as a three-way TCP handshake state. Valid values are 0 through 65,535. If this value is set to zero, the number of connections is unlimited. A positive number enables the TCP Intercept feature.

Timeout

For PIX 6.x devices, enter the timeout value to use for this static translation rule using the format hh:mm:ss. This timeout value overrides the translation timeout specified in Platform > Security > Timeouts. Leave the default value of 00:00:00 if you want translations matching this rule to use the default translation timeout specified in Platform > Security > Timeouts.

Randomize Sequence Number

When selected, the security appliance will randomize the sequence number of TCP packets. Disable this feature only if another inline security appliance is also randomizing sequence numbers and the result is scrambling the data. Disabling this option opens a security hole in the security appliance. This feature is enabled by default.


Select Address Pool Dialog Box

Use the Select Address Pool dialog box to select the address pool to use for a dynamic or policy dynamic translation rule from a list of defined global address pools.

Navigation Path

You can access the Select Address Pool dialog box from the Add/Edit Dynamic Translation Rule Dialog Box when adding or editing a dynamic translation rule or from the Add/Edit Policy Dynamic Rules Dialog Box when adding or editing a policy dynamic translation rule.

Related Topics

NAT Policies

Translation Rules Page

Add/Edit Dynamic Translation Rule Dialog Box

Add/Edit Policy Dynamic Rules Dialog Box

Field Reference

Table L-14 Select Address Pool Dialog Box 

Element
Description

Pool ID

Displays the identification number of the address pool.

Interface

Displays the name of the firewall device interface to which the address pool applies.

IP Address Ranges

Displays the type and value of the addresses for the pool.

Description

Displays the description of the address pool.

Selected Row

Identifies the selected pool.


Interfaces Page

The Interfaces page displays configured interfaces and sub-interfaces. You can add or delete interfaces and sub-interfaces, and also enable communication between interfaces on the same security level. Each firewall device must be configured, and each active interface must be enabled. Inactive interfaces can be disabled. When disabled, the interface does not transmit or receive data, but the configuration information is retained.

Transparent firewall mode allows only two interfaces to pass through traffic; however, if your platform includes a dedicated management interface, you can use it (either the physical interface or a sub-interface) as a third interface for management traffic.

If you bootstrapped a new firewall device, the setup feature configures only the addresses and names associated with the inside interface. You must define the remaining interfaces on that device before you can specify access and translation rules for traffic traversing that firewall device.

The Interfaces page settings vary based on the device type and version, the operational mode (routed vs. transparent), and whether the device hosts a single or multiple contexts. As such, the fields in the following table might not apply depending on the device you are defining.

Navigation Path

To access this feature, select a firewall device in Device View and then select Interfaces from the Device Policy selector.

Related Topics

Configuring Firewall Device Interfaces, page 15-3

Add/Edit Interface Dialog Box

Field Reference

Table L-15 Interfaces Page 

Element
Description
Interfaces Table

Interface Type

Displays the interface type. This value is derived from the hardware ID setting of the selected interface. Valid options are:

ethernet

gigabitethernet

gb-ethernet

Interface Name/Name

Displays the interface ID. All physical interfaces are listed automatically. For ASA/PIX 7.0 devices, sub-interfaces are indicated by the interface ID followed by .n, where n is the sub-interface number.

IP Address

Displays the IP address, or in transparent mode, the word "native." Transparent mode interfaces do not use IP addresses.

IP Address Type

Specifies the method by which the IP address is provided. Valid options are:

static—Identifies that the IP address is manually defined.

dhcp—Identifies that the IP address is obtained via a DHCP lease.

pppoe—Identifies that the IP address is obtained using PPPoE.

Interface Role

Lists the interface roles associated with the interface. Interface roles are objects that are replaced with the actual interface IP addresses when the configuration is generated for each device. They allow you to define generic rules—ones that can apply to multiple interfaces.

Valid options include:

All-Interfaces—Indicates the interface is a member of the default role assigned to all interfaces.

Internal—Indicates this interface is a member of the default role associated with all inside interfaces.

External—Indicates this interface is a member of the default role associated with all outside interfaces.

For more information on roles and how to define and use them, see Understanding Interface Role Objects, page 8-114.

Hardware ID

Identifies the type of interface installed in the device, as well as the port or slot where the interfaces is installed.

For sub-interfaces, this value identifies the physical interface with which the sub-interfaces is associated.

Vlan ID

For a sub-interface, sets the VLAN ID, between 1 and 4094. Some VLAN IDs might be reserved on connected switches, so check the switch documentation for more information. For multiple context mode, you can only set the VLAN in the system configuration.

If this value is not specified, the column displays native.

Enabled

Indicates if the interface is enabled, true or false.

By default, all physical interfaces are shut down. You must enable the physical interface before any traffic can pass through an enabled sub-interface. For multiple context mode, if you allocate a physical interface or sub-interface to a context, the interfaces are enabled by default in the context. However, before traffic can pass through the context interface, you must also enable the interface in the system configuration. If you shut down an interface in the system execution space, that interface is down in all contexts that share it.

Security Level

Displays the interface security level between 0 and 100.

Management Only

Indicates if the interface allows traffic to the security appliance or for management purposes only.

MTU

Displays the MTU. By default, the MTU is 1500.

Description

Displays a description of the interface. In the case of a failover or state link, the description is fixed as "LAN Failover Interface," "STATE Failover Interface," or "LAN/STATE Failover Interface," for example. You cannot edit this description.

ASR Group

Displays the ASR group number if this interface is part of an asymmetric routing group. Stateful failover must be enabled for asymmetric routing support to function properly between units in failover configurations. Valid values for ASR group range from 1 to 32.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Add/Edit Interface Dialog Box

Use the Add/Edit Interface dialog box to add or edit an interface or sub-interface. In multiple context mode, you can only add interfaces in the system configuration. See the Configuring Security Contexts on Firewall Devices, page 15-105 page to assign interfaces to contexts.

If you intend to use a physical interface for failover, do not configure the interface in this dialog box; instead, use the Failover page. In particular, do not set the interface name, as this parameter disqualifies the interface from being used as the failover link; other parameters are ignored.

After you assign the interface as the failover link or state link, you cannot edit or delete the interface from the Interfaces page. The only exception is if you set a physical interface to be the state link, then you can configure the speed and duplex.

The options appearing in the Add/Edit Interface dialog box vary based on the selected device type, the mode of the device (routed or transparent), and the type of interface you are defining, such as a physical, virtual, logical, or sub-interface:

Add/Edit Interface Dialog Box (PIX 7.0/ASA)

Add/Edit Interface Dialog Box (PIX 6.3)

Navigation Path

You can access the Add/Edit Interface dialog box from the Interfaces page. For more information about the Interfaces page, see Interfaces Page.

Related Topics

Configuring Firewall Device Interfaces, page 15-3

Interfaces Page

ASA 5505 Ports and Interfaces Page

Advanced Interface Settings Dialog Box

Add VPND Group Dialog Box

PPPoE Users Dialog Box

Field Reference (PIX 7.0/ASA)

Table L-16 Add/Edit Interface Dialog Box (PIX 7.0/ASA) 

Element
Description

Enable Interface

Enables this interface to pass traffic. In addition to this setting, you need to set an IP address (for routed mode) and a name before traffic can pass according to your security policy.

By default, all physical interfaces are shut down. You must enable the physical interface before any traffic can pass through an enabled sub-interface. For multiple context mode, if you allocate a physical interface or sub-interface to a context, the interfaces are enabled by default in the context. However, before traffic can pass through the context interface, you must also enable the interface in the system configuration. If you shut down an interface in the system execution space, that interface is down in all contexts that share it.

Management Only

Sets the interface to accept traffic to the security appliance only, and not through traffic.

Type

Type of interface. Valid values are:

Interface—Settings represent a physical interface.

Sub-interface—Settings represent a logical interface attached to the same network as its underlying physical interface.

Name

Sets an interface name up to 48 characters in length. The name should be a logical name of the interface that relates to its use. Supported interface names are:

Inside—Connects to your internal network. Must be most secure interface.

DMZ—Demilitarized zone attached to an intermediate interface. DMZ is also known as a perimeter network. You can name a DMZ interface any name you choose. Typically, DMZ interfaces are prefixed with "DMZ" to identify the interface type.

Outside—Connects to an external network or the Internet. Must be least secure interface.

Hardware Port

For a physical interface, this value represents a name by which sub-interfaces can associate to the interface. When you add a sub-interface, you can choose any enabled physical interface to which you want to add a sub-interface. If you do not see an interface ID, be sure that the interface is enabled.

Valid values are:

Ethernet0 to Ethernetn.

Gb-ethernetn.

Note n = number of network interfaces in the device.

Sub-interface ID

Sets the sub-interface ID as an integer between 1 and 4294967293. The number of sub-interfaces allowed depends on your platform. You cannot change the ID after you set it.

Media Type

Specifies the media type for the interface

RJ45

SFP

IP Type

Specifies the address type for the interface.

Static IP—Assigns a static IP address and mask to the interface.

Use DHCP—Assigns a dynamic IP address and mask to the interface.

PPPoE—Provides an authenticated method of assigning an IP address to the interface.

Note You can configure DHCP and PPPoE only on the outside interface of a firewall device.

IP Address

Specifies the IP address for the device. For a static IP address, select the Use Static IP option and then enter the IP address and mask in the IP Address field. To obtain the IP address from a DHCP server, select the Obtain Address via DHCP option.

IP address must be unique for each interface.

The IP address is blank for interfaces that use dynamic addressing.

Note Do not use addresses previously used for routers, hosts, or any other firewall device commands, such as an IP address in the global pool or a static NAT entry.

Subnet Mask

Network mask for IP address of interface. You can express the value in dotted decimal format (for example, 255.255.255.0) or by entering the number of bits in the network mask (for example, 24).

Note Do not use 255.255.255.254 or 255.255.255.255 for an interface connected to the network because this will stop traffic on that interface.

DHCP Learned Route Metric

Available only if Use DHCP is selected for IP Type.

Obtain default route using DHCP

Available only if Use DHCP is selected for IP Type. If selected, the firewall device sets the default route using the default gateway parameter the DHCP server returns. Otherwise, you must manually define the default route as a static route on the Static Route Page.

Enable Tracking for DHCP Learned Route

Available only if Use DHCP is selected for IP Type.

VPDN Group Name

Available only if PPPoE is selected for IP Type.

PPPoE Learned Route Metric

Available only if PPPoE is selected for IP Type.

Obtain Default Route using PPPoE

Available only if PPPoE is selected for IP Type. If selected, the firewall device sets the default route using the default gateway parameter the PPPoE server returns. Otherwise, you must manually define the default route as a static route on the Static Route Page.

Enable Tracking for PPPoE Learned Route

Available only if PPPoE is selected for IP Type.

Duplex

Lists the duplex options for the interface, including Full, Half, or Auto, depending on the interface type.

Speed

Lists the speed options for a physical interface; not applicable to logical interfaces. The speeds available depend on the interface type.

10

100

1000

non-negotiable

MTU

Sets the number of bytes in the maximum transmission unit (MTU). The value depends on the type of network connected to the interface. Valid values are 300-65535 bytes. Default is 1500 for all types except PPPoE, for which the default is 1492. For multiple context mode, set the MTU in the context configuration.

VLAN ID

For a sub-interface, sets the VLAN ID, between 1 and 4094. Some VLAN IDs might be reserved on connected switches, so see the switch documentation for more information. For multiple context mode, you can only set the VLAN in the system configuration.

Security Level

Sets the security level of the interface. Value are between 0 (lowest) and 100 (highest). The security appliance lets traffic flow freely from an inside network to an outside network (lower security level). Many other security features are affected by the relative security level of two interfaces.

Outside interface is always 0.

Inside interface is always 100.

DMZ interfaces are between 1-99.

Description

Sets an optional description up to 240 characters on a single line, without carriage returns. For multiple context mode, the system description is independent of the context description. For a failover or state link, the description is fixed as "LAN Failover Interface," "STATE Failover Interface," or "LAN/STATE Failover Interface," for example. You cannot edit this description. The fixed description overwrites any description you enter here if you make this interface a failover or state link.

Roles

Lists the interface roles associated with the interface. Interface roles are objects that are replaced with the actual interface IP addresses when the configuration is generated for each device. They allow you to define generic rules—ones that can apply to multiple interfaces.

Default options include:

All-Interfaces—Indicates the interface is a member of the default role assigned to all interfaces.

Internal—Indicates this interface is a member of the default role associated with all inside interfaces.

External—Indicates this interface is a member of the default role associated with all outside interfaces.

For more information on roles and how to define and use them, see Understanding Interface Role Objects, page 8-114.


<Back to top>

Field Reference (PIX 6.3)

Table L-17 Add/Edit Interface Dialog Box (PIX 6.3) 

Element
Description

Enable Interface

Enables this interface to pass traffic. In addition to this setting, you must specify an IP address and a name before traffic can pass according to your security policy.

You must enable a physical interface before any traffic can pass through any enabled sub-interfaces.

Type

Type of VLAN interface. Valid values are:

Logical—VLAN is associated with a logical interface.

Physical—VLAN is on the same network as its underlying hardware interface.

Name

Sets an interface name up to 48 characters in length. The name should be a logical name of the interface that relates to its use. Supported interface names are:

Inside—Connects to your internal network. Must be most secure interface.

DMZ—Demilitarized zone (Intermediate interface). Also known as a perimeter network.

Outside—Connects to an external network or the Internet. Must be least secure interface.

Hardware Port

When defining a physical network interface, this value represents the name identifies the interface type and its slot or port in the device.

When you add a logical network interface, you can choose any enabled physical interface to which you want to add a logical interface. If you do not see the desired hardware port, verify that the interface is enabled.

Valid values are:

ethernet0 to ethernetn.

gb-ethernetn.

Note n = number of the slot in which the network interface is installed in the device.

IP Type

Specifies the address type for the interface.

Static IP—Assigns a static IP address and mask to the interface.

Use DHCP—Assigns a dynamic IP address and mask to the interface.

Use PPPoE—Provides an authenticated method of assigning an IP address to the interface.

Note You can configure DHCP and PPPoE only on the outside interface of a firewall device.

IP Address

Identifies the IP address of the interface. This field is available if Static IP or PPPoE is the IP type.

IP address must be unique for each interface.

The IP address is blank for interfaces that use dynamic addressing.

Note Do not use addresses previously used for routers, hosts, or any other firewall device commands, such as an IP address in the global pool or a static NAT entry.

For a static IP address, select Static IP from the IP Type list and then enter the IP address and mask in the IP Address field. To obtain the IP address from a DHCP server, select Use DHCP from the IP Type list.

Subnet Mask

Identifies the network mask for IP address of the interface. You can express the value in dotted decimal format (for example, 255.255.255.0) or by entering the number of bits in the network mask (for example, 24).

Note Do not use 255.255.255.254 or 255.255.255.255 for an interface connected to the network because those mask values stop traffic on that interface.

Obtain Default Route using DHCP

Available only if Use DHCP is selected for IP Type. If selected, the firewall device sets the default route using the default gateway parameter the DHCP server returns. Otherwise, you must manually define the default route as a static route on the Static Route Page.

Retry Count

Identifies the number of tries before an error is returned. Valid values are 4-16.

Obtain default route using PPPoE

Available only if Use PPPoE is selected for IP Type. If selected, the PPPoE client on the firewall device queries the concentrator for a default route. Otherwise, the firewall device generates a default route using the address of the concentrator as the default gateway.

Speed and Duplex

Lists the speed options for a physical interface; not applicable to logical interfaces.

auto—Set Ethernet speed automatically. The auto keyword can be used only with the Intel 10/100 automatic speed sensing network interface card.

10baset—10-Mbps Ethernet half-duplex.

10full—10-Mbps Ethernet full-duplex.

100basetx—100-Mbps Ethernet half-duplex.

100full—100-Mbps Ethernet full-duplex.

1000auto—1000-Mbps Ethernet to auto-negotiate full- or half -duplex.

Tip We recommend that you do not use this option to maintain compatibility with switches and other devices in your network.

1000full—Auto-negotiate, advertising 1000-Mbps Ethernet full-duplex.

1000full nonnegotiate—1000-Mbps Ethernet full-duplex.

aui—10-Mbps Ethernet half-duplex communication with an AUI cable interface.

bnc—10-Mbps Ethernet half-duplex communication with a BNC cable interface.

Note We recommend that you specify the speed of the network interfaces in case your network environment includes switches or other devices that do not handle autosensing correctly.

MTU

Sets the number of bytes in the maximum transmission unit (MTU). The value depends on the type of network connected to the interface. Valid values are 300-65535 bytes. Default is 1500 for all types except PPPoE, for which the default is 1492.

Physical VLAN ID

For a physical interface, sets the VLAN ID, between 1 and 4094. This VLAN ID must not be in use on connected devices.

Logical VLAN ID

Identifies the alias, a value between 1 and 4094, of the VLAN associated with this logical interface. This value is required if the logical interface type is selected.

Security Level

Sets the security level of the interface. Value are between 0 (lowest) and 100 (highest). The security appliance lets traffic flow freely from an inside network to an outside network (lower security level). Many other security features are affected by the relative security level of two interfaces.

Outside interface is always 0.

Inside interface is always 100.

DMZ interfaces are between 1-99.

Roles

Lists the interface roles associated with the interface. Interface roles are objects that are replaced with the actual interface IP addresses when the configuration is generated for each device. They allow you to define generic rules—ones that can apply to multiple interfaces.

Default options include:

All-Interfaces—Indicates the interface is a member of the default role assigned to all interfaces.

Internal—Indicates this interface is a member of the default role associated with all inside interfaces.

External—Indicates this interface is a member of the default role associated with all outside interfaces.

For more information on roles and how to define and use them, see Understanding Interface Role Objects, page 8-114.


<Back to top>

Advanced Interface Settings Dialog Box

Navigation Path

You can access the Advanced Interface Settings dialog box from the Interfaces page or the Interfaces tab on the ASA 5505 Ports and Interfaces page. For more information about these pages, see Interfaces Page or ASA 5505 Ports and Interfaces Page.

Related Topics

Configuring Firewall Device Interfaces, page 15-3

Interfaces Page

FWSM Interfaces Page

ASA 5505 Ports and Interfaces Page

Add/Edit Interface Dialog Box

FWSM Add/Edit Interface Dialog Box

Add VPND Group Dialog Box

PPPoE Users Dialog Box

Field Reference

Table L-18 Advanced Interface Settings Dialog Box 

Element
Description

Traffic between interfaces with same security levels

Controls communication between interfaces on the same security level. If you enable same security interface communication, you can still configure interfaces at different security levels as usual.

Disabled—Does not allow communication between interfaces on the same security level.

Inter-interface—Enables traffic flows between interfaces with the same security level setting. When this option is enabled, you are not required to define translation rules to enable traffic flow between interfaces in the firewall device.

Intra-interface—Enables traffic flows between sub-interfaces with the same security level setting. When this option is enabled, you are not required to define translation rules to enable traffic flow between sub-interfaces assigned to an interface.

Both—Allows both intra- and inter-interface communications among interfaces and sub-interfaces with the same security level.

PPPoE Users button

Click to access the PPPoE Users dialog box.

VPDN Groups (PIX and ASA 7.2+)

Group Name

Displays the group name.

PPPoE Username

Displays the PPPoE username.

PPP Authentication

Indicates the PPP Authentication method for this VPDN group:

PAP

CHAP

MSCHAP


Add VPND Group Dialog Box

Navigation Path

You can access the Add VPND Group dialog box from the Advanced Interface Settings dialog box. For more information about the Advanced Interface Settings dialog box, see Advanced Interface Settings Dialog Box.

Related Topics

Configuring Firewall Device Interfaces, page 15-3

Interfaces Page

FWSM Interfaces Page

ASA 5505 Ports and Interfaces Page

Add/Edit Interface Dialog Box

FWSM Add/Edit Interface Dialog Box

Advanced Interface Settings Dialog Box

PPPoE Users Dialog Box

Field Reference

Table L-19 Add VPND Group Dialog Box 

Element
Description

Group Name

Enter the group name.

PPPoE Username

Select the PPPoE username.

PPP Authentication

Select the PPP Authentication method:

PAP

CHAP

MSCHAP


PPPoE Users Dialog Box

Navigation Path

You can access the PPPoE Users dialog box from the Advanced Interface Settings dialog box and from the Add VPND Group dialog box. For more information about the Advanced Interface Settings dialog box, see Advanced Interface Settings Dialog Box. For more information about the Add VPND Group dialog box, see Add VPND Group Dialog Box.

Related Topics

Configuring Firewall Device Interfaces, page 15-3

Interfaces Page

FWSM Interfaces Page

ASA 5505 Ports and Interfaces Page

Add/Edit Interface Dialog Box

FWSM Add/Edit Interface Dialog Box

Advanced Interface Settings Dialog Box

Add VPND Group Dialog Box

Add PPPoE User Dialog Box

Field Reference

Table L-20 PPPoE Users Dialog Box 

Element
Description

PPPoE Users (PIX and ASA 7.2+)

Username

Displays the PPPoE username.

Store in Local Flash

Indicates whether this PPPoE user account is to be stored in local flash (True or False).


Add PPPoE User Dialog Box

Navigation Path

You can access the Add PPPoE User dialog box from the PPPoE Users dialog box. For more information about the PPPoE Users dialog box, see PPPoE Users Dialog Box.

Related Topics

Configuring Firewall Device Interfaces, page 15-3

Interfaces Page

FWSM Interfaces Page

ASA 5505 Ports and Interfaces Page

Add/Edit Interface Dialog Box

FWSM Add/Edit Interface Dialog Box

Advanced Interface Settings Dialog Box

Add VPND Group Dialog Box

PPPoE Users Dialog Box

Field Reference

Table L-21 Add PPPoE User Dialog Box 

Element
Description

Username

Enter the username.

Password

Enter the password.

Confirm

Reenter the password.

Store Username and Password in Local Flash

Select this checkbox to store the PPPoE user information in flash.


FWSM Interfaces Page

The FWSM Interfaces page displays configured interfaces and sub-interfaces. You can add or delete interfaces and sub-interfaces, and also enable communication between interfaces on the same security level. Each firewall device must be configured, and each active interface must be enabled. Inactive interfaces can be disabled. When disabled, the interface does not transmit or receive data, but the configuration information is retained.

Transparent firewall mode allows only two interfaces to pass through traffic; however, if your platform includes a dedicated management interface, you can use it (either the physical interface or a sub-interface) as a third interface for management traffic.

If you bootstrapped a new firewall device, the setup feature configures only the addresses and names associated with the inside interface. You must define the remaining interfaces on that device before you can specify access and translation rules for traffic traversing that firewall device.

The Interfaces page settings vary based on the device type and version, the operational mode (routed vs. transparent), and whether the device hosts a single or multiple contexts. As such, the fields in the following table might not apply depending on the device you are defining.

Navigation Path

To access this feature, select a firewall device in Device View and then select Interfaces from the Device Policy selector.

Related Topics

Configuring Firewall Device Interfaces, page 15-3

FWSM Add/Edit Interface Dialog Box

Add/Edit Bridge Group Dialog Box

Advanced Interface Settings Dialog Box

Field Reference

Table L-22 FWSM Interfaces Page 

Element
Description
Interfaces Tab

Interface Type

Displays the interface type. This value is derived from the hardware ID setting of the selected interface. Valid options are:

ethernet

gigabitethernet

gb-ethernet

Interface Name

Displays the interface ID. All physical interfaces are listed automatically. For ASA/PIX 7.0 devices, sub-interfaces are indicated by the interface ID followed by .n, where n is the sub-interface number.

IP Address

Displays the IP address, or in transparent mode, the word "native." Transparent mode interfaces do not use IP addresses.

IP Address Type

Specifies the method by which the IP address is provided. Valid options are:

static—Identifies that the IP address is manually defined.

dhcp—Identifies that the IP address is obtained via a DHCP lease.

pppoe—Identifies that the IP address is obtained using PPPoE.

Interface Role

Lists the interface roles associated with the interface. Interface roles are objects that are replaced with the actual interface IP addresses when the configuration is generated for each device. They allow you to define generic rules—ones that can apply to multiple interfaces.

Valid options include:

All-Interfaces—Indicates the interface is a member of the default role assigned to all interfaces.

Internal—Indicates this interface is a member of the default role associated with all inside interfaces.

External—Indicates this interface is a member of the default role associated with all outside interfaces.

For more information on roles and how to define and use them, see Understanding Interface Role Objects, page 8-114.

Hardware ID

Identifies the type of interface installed in the device, as well as the port or slot where the interfaces is installed.

For sub-interfaces, this value identifies the physical interface with which the sub-interfaces is associated.

Vlan ID

For a sub-interface, sets the VLAN ID, between 1 and 4094. Some VLAN IDs might be reserved on connected switches, so check the switch documentation for more information. For multiple context mode, you can only set the VLAN in the system configuration.

If this value is not specified, the column displays native.

Enabled

Indicates if the interface is enabled, true or false.

By default, all physical interfaces are shut down. You must enable the physical interface before any traffic can pass through an enabled sub-interface. For multiple context mode, if you allocate a physical interface or sub-interface to a context, the interfaces are enabled by default in the context. However, before traffic can pass through the context interface, you must also enable the interface in the system configuration. If you shut down an interface in the system execution space, that interface is down in all contexts that share it.

Security Level

Displays the interface security level between 0 and 100.

Management Only

Indicates if the interface allows traffic to the security appliance or for management purposes only.

MTU

Displays the MTU. By default, the MTU is 1500.

Description

Displays a description of the interface. In the case of a failover or state link, the description is fixed as "LAN Failover Interface," "STATE Failover Interface," or "LAN/STATE Failover Interface," for example. You cannot edit this description.

ASR Group

Displays the ASR group number if this interface is part of an asymmetric routing group. Stateful failover must be enabled for asymmetric routing support to function properly between units in failover configurations. Valid values for ASR group range from 1 to 32.

Bridge Groups Tab

Bridge Group

Shows the name of the bridge group.

ID

Displays the bridge group ID.

Interface A

Identifies the first interface that is part of this bridge group.

Interface B

Identifies the second interface that is part of this bridge group.

IP

Displays the management IP address for the bridge group. A transparent firewall does not participate in IP routing. The only IP configuration required for the security appliance is to set the management IP address for each bridge group. This address is required because the security appliance uses this address as the source address for traffic originating on the security appliance, such as system messages or communications with AAA servers. You can also use this address for remote management access.

Netmask

Displays the netmask for the management IP address of this bridge group.

Description

Displays the description of this bridge group if one was specified.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


FWSM Add/Edit Interface Dialog Box

Use the Add/Edit Interface dialog box to add or edit an interface or sub-interface. In multiple context mode, you can only add interfaces in the system configuration. See the Configuring Security Contexts on Firewall Devices, page 15-105 page to assign interfaces to contexts.

If you intend to use a physical interface for failover, do not configure the interface in this dialog box; instead, use the Failover page. In particular, do not set the interface name, as this parameter disqualifies the interface from being used as the failover link; other parameters are ignored.

After you assign the interface as the failover link or state link, you cannot edit or delete the interface from the Interfaces page. The only exception is if you set a physical interface to be the state link, then you can configure the speed and duplex.

The options appearing in the Add/Edit Interface dialog box vary based on the selected device type, the mode of the device (routed or transparent), and the type of interface you are defining, such as a physical, virtual, logical, or sub-interface:

Navigation Path

You can access the FWSM Add/Edit Interface dialog box from the FWSM Interfaces page. For more information about the Interfaces page, see FWSM Interfaces Page.

Related Topics

Configuring Firewall Device Interfaces, page 15-3

FWSM Interfaces Page

Add/Edit Bridge Group Dialog Box

Advanced Interface Settings Dialog Box

Field Reference

Table L-23 FWSM Add/Edit Interface Dialog Box 

Element
Description

Enable Interface

Enables this interface to pass traffic. You must also set an IP address (for routed mode) and a name before traffic can pass according to your security policy.

By default, all physical interfaces are shut down. You must enable the physical interface before any traffic can pass through an enabled subinterface. For multiple context mode, if you allocate a physical interface or subinterface to a context, the interfaces are enabled by default in the context. However, before traffic can pass through the context interface, you must also enable the interface in the system configuration. If you shut down an interface in the system execution space, that interface is down in all contexts that share it.

Management Only

Sets the interface to accept traffic to the security appliance only, and not through traffic.

Name

Sets an interface name up to 48 characters in length. The name should be a logical name of the interface that relates to its use. Supported interface names are:

Inside—Connects to your internal network. Must be most secure interface.

DMZ—Demilitarized zone attached to an intermediate interface. DMZ is also known as a perimeter network. You can name a DMZ interface any name you choose. Typically, DMZ interfaces are prefixed with "DMZ" to identify the interface type.

Outside—Connects to an external network or the Internet. Must be least secure interface.

IP Address

Specifies the IP address for the device. For a static IP address, select the Use Static IP option and then enter the IP address and mask in the IP Address field. To obtain the IP address from a DHCP server, select the Obtain Address via DHCP option.

IP address must be unique for each interface.

The IP address is blank for interfaces that use dynamic addressing.

Note Do not use addresses being used for routers, hosts, or any other firewall device commands, such as an IP address in the global pool or a static NAT entry.

Subnet Mask

Network mask for IP address of interface. You can express the value in dotted decimal format (for example, 255.255.255.0) or by entering the number of bits in the network mask (for example, 24).

Note Do not use 255.255.255.254 or 255.255.255.255 for an interface connected to the network because this will stop traffic on that interface.

MTU

Sets the number of bytes in the maximum transmission unit (MTU). The value depends on the type of network connected to the interface. Valid values are 64-65535 bytes. Default is 1500 for all types except PPPoE, for which the default is 1492. For multiple context mode, set the MTU in the context configuration.

VLAN ID

For a subinterface, sets the VLAN ID between 1 and 4096. Some VLAN IDs might be reserved on connected switches, so see the switch documentation for more information. For multiple context mode, you can only set the VLAN in the system configuration.

Security Level

Sets the security level of the interface. Value are between 0 (lowest) and 100 (highest). The security appliance lets traffic flow freely from an inside network to an outside network (lower security level). Many other security features are affected by the relative security level of two interfaces.

Outside interface is always 0.

Inside interface is always 100.

DMZ interfaces are between 1-99.

Roles

Lists the interface roles associated with the interface. Interface roles are objects that are replaced with the actual interface IP addresses when the configuration is generated for each device. They allow you to define generic rules—ones that can apply to multiple interfaces.

Default options include:

All-Interfaces—Indicates the interface is a member of the default role assigned to all interfaces.

Internal—Indicates this interface is a member of the default role associated with all inside interfaces.

External—Indicates this interface is a member of the default role associated with all outside interfaces.

For more information on roles and how to define and use them, see Understanding Interface Role Objects, page 8-114.

ASR Group

To add this interface to an asymmetric routing group, enter the ASR group number in this field. Stateful failover must be enabled for asymmetric routing support to function properly between units in failover configurations. Valid values for ASR group range from 1 to 32.


Add/Edit Bridge Group Dialog Box

Use the Add/Edit Bridge Group dialog box to add or edit bridge groups for an FWSM operating in transparent mode.

A transparent firewall connects the same network on its inside and outside interfaces. Each pair of interfaces belongs to a bridge group, to which you must assign a management IP address. You can configure up to eight bridge groups of two interfaces each. Each bridge group connects to a separate network. Bridge group traffic is isolated from other bridge groups; traffic is not routed to another bridge group within the security appliance, and traffic must exit the security appliance before it is routed by an external router back to another bridge group in the security appliance.

You might want to use more than one bridge group if you do not want the overhead of security contexts, or want to maximize your use of security contexts. Although the bridging functions are separate for each bridge group, many other functions are shared between all bridge groups. For example, all bridge groups share a syslog server or AAA server configuration. For complete security policy separation, use security contexts with one bridge group in each context.

Navigation Path

You can access the Add/Edit Bridge Group dialog box from the FWSM Interfaces page. For more information about the Interfaces page, see FWSM Interfaces Page.

Related Topics

Configuring Firewall Device Interfaces, page 15-3

FWSM Interfaces Page

FWSM Add/Edit Interface Dialog Box

Advanced Interface Settings Dialog Box

Field Reference

Table L-24 Add/Edit Bridge Group Dialog Box 

Element
Description

Name

Enter a name for this bridge group.

ID

Enter the bridge group ID as an integer between 1 and 100.

Interface A

Select the first interface that is part of this bridge group.

Interface B

Select the second interface that is part of this bridge group.

IP Address

Enter the management IP address for the bridge group. A transparent firewall does not participate in IP routing. The only IP configuration required for the security appliance is to set the management IP address for each bridge group. This address is required because the security appliance uses this address as the source address for traffic originating on the security appliance, such as system messages or communications with AAA servers. You can also use this address for remote management access.

Netmask

Network mask for IP address of bridge group. You can express the value in dotted decimal format (for example, 255.255.255.0) or by entering the number of bits in the network mask (for example, 24).

Note Do not use 255.255.255.254 or 255.255.255.255 for an interface connected to the network because this will stop traffic on that interface.

Description

You can enter an optional description for this bridge group.


ASA 5505 Ports and Interfaces Page

The ASA 5505 adaptive security appliance supports a built-in switch. There are two kinds of ports and interfaces that you need to configure:

Physical switch ports—The adaptive security appliance has eight Fast Ethernet switch ports that forward traffic at Layer 2, using the switching function in hardware. Two of these ports are PoE ports. You can connect these interfaces directly to user equipment such as PCs, IP phones, or a DSL modem. Or you can connect to another switch.

Logical VLAN interfaces—In routed mode, these interfaces forward traffic between VLAN networks at Layer 3, using the configured security policy to apply firewall and VPN services. In transparent mode, these interfaces forward traffic between the VLANs on the same network at Layer 2, using the configured security policy to apply firewall services.

To segregate the switch ports into separate VLANs, you assign each switch port to a VLAN interface. Switch ports on the same VLAN can communicate with each other using hardware switching. But when a switch port on VLAN 1 wants to communicate with a switch port on VLAN 2, then the adaptive security appliance applies the security policy to the traffic and routes or bridges between the two VLANs.


Note Subinterfaces are not available for the ASA 5505 adaptive security appliance.


Navigation Path

To access this feature, select an ASA 5505 in Device View and then select Interfaces from the Device Policy selector.

Related Topics

Configuring Firewall Device Interfaces, page 15-3

Configure Hardware Ports Dialog Box

Add/Edit Interface Dialog Box (PIX 7.0/ASA)

Advanced Interface Settings Dialog Box

Add VPND Group Dialog Box

PPPoE Users Dialog Box

Field Reference

Table L-25 ASA 5505 Ports and Interfaces Page 

Element
Description
Hardware Ports Tab

Hardware Port

Identifies the switch port.

Enabled

Indicates whether this switch port is enabled or not (Yes or No).

Associated VLANs

Shows the VLAN or VLANs that are associated with this port.

Associated Interface Names

Shows the interface name of the VLAN(s) that are associated with this port.

Mode

Shows the mode for this port:

Access Port—Port is in access mode.

Trunk Port—Port is in trunk mode. Trunk mode is available only with the Security Plus license. Trunk ports do not support untagged packets; there is no native VLAN support, and the adaptive security appliance drops all packets that do not contain a tag specified in this command.

Protected

Identifies whether the port is isolated or not (Yes or No). This option prevents the switch port from communicating with other protected switch ports on the same VLAN. You might want to prevent switch ports from communicating with each other if the devices on those switch ports are primarily accessed from other VLANs, you do not need to allow intra-VLAN access, and you want to isolate the devices from each other in case of infection or other security breach. For example, if you have a DMZ that hosts three web servers, you can isolate the web servers from each other if you apply the Protected option to each switch port. The inside and outside networks can both communicate with all three web servers, and vice versa, but the web servers cannot communicate with each other.

Interfaces Tab

Name

Displays the interface ID. All physical interfaces are listed automatically. For ASA/PIX 7.0 devices, sub-interfaces are indicated by the interface ID followed by .n, where n is the sub-interface number.

IP Address Type

Specifies the method by which the IP address is provided. Valid options are:

static—Identifies that the IP address is manually defined.

dhcp—Identifies that the IP address is obtained via a DHCP lease.

pppoe—Identifies that the IP address is obtained using PPPoE.

IP Address

Displays the IP address, or in transparent mode, the word "native." Transparent mode interfaces do not use IP addresses.

Block Traffic To

Displays the interface to which traffic is blocked.

Backup Interface

Displays the interface that acts as backup for this interface.

Interface Role

Lists the interface roles associated with the interface. Interface roles are objects that are replaced with the actual interface IP addresses when the configuration is generated for each device. They allow you to define generic rules—ones that can apply to multiple interfaces.

Valid options include:

All-Interfaces—Indicates the interface is a member of the default role assigned to all interfaces.

Internal—Indicates this interface is a member of the default role associated with all inside interfaces.

External—Indicates this interface is a member of the default role associated with all outside interfaces.

For more information on roles and how to define and use them, see Understanding Interface Role Objects, page 8-114.

Enabled

Indicates if the interface is enabled (Yes or No).

Vlan ID

Identifies the VLAN ID for this interface.

Security Level

Displays the interface security level between 0 and 100.

Management Only

Indicates if the interface allows traffic to the security appliance or for management purposes only.

MTU

Displays the MTU. By default, the MTU is 1500.

Description

Displays a description of the interface.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Configure Hardware Ports Dialog Box

Use the Configure Hardware Ports dialog box to configure the switch ports on an ASA 5505 including setting the mode, assigning a switch port to a VLAN, and setting the Protected option.


Caution The ASA 5505 adaptive security appliance does not support Spanning Tree Protocol for loop detection in the network. Therefore you must ensure that any connection with the adaptive security appliance does not end up in a network loop.

Navigation Path

You can access the Configure Hardware Ports dialog box for an ASA 5505 from the Hardware Ports tab of the ASA 5505 Ports and Interfaces page. For more information about the ASA 5505 Ports and Interfaces page, see ASA 5505 Ports and Interfaces Page.

Related Topics

Configuring Firewall Device Interfaces, page 15-3

ASA 5505 Ports and Interfaces Page

Add/Edit Interface Dialog Box (PIX 7.0/ASA)

Advanced Interface Settings Dialog Box

Add VPND Group Dialog Box

PPPoE Users Dialog Box

Field Reference

Table L-26 Configure Hardware Ports Dialog Box 

Element
Description

Enable Hardware Port

Select to enable this switch port.

Isolated

Select this option to prevent the switch port from communicating with other protected switch ports on the same VLAN. You might want to prevent switch ports from communicating with each other if the devices on those switch ports are primarily accessed from other VLANs, you do not need to allow intra-VLAN access, and you want to isolate the devices from each other in case of infection or other security breach. For example, if you have a DMZ that hosts three web servers, you can isolate the web servers from each other if you apply the Protected option to each switch port. The inside and outside networks can both communicate with all three web servers, and vice versa, but the web servers cannot communicate with each other.

Hardware Port

Select the switch port that you are configuring.

Mode

Select the mode for this port:

Access Port—Sets the mode to access mode.

Trunk Port—Sets the mode to trunk mode using 802.1Q tagging. Trunk mode is available only with the Security Plus license. Trunk ports do not support untagged packets; there is no native VLAN support, and the adaptive security appliance drops all packets that do not contain a tag specified in this command.

VLAN ID

Enter the VLAN ID(s) according to the mode you selected:

Access Port mode—Enter the VLAN ID to which you want to assign this switch port.

Trunk Port mode—Enter the VLAN IDs to which you want to assign this switch port, separated by commas.

Duplex

Lists the duplex options for the port, including Full, Half, or Auto. The Auto setting is the default.

If you set the duplex to anything other than Auto on PoE ports Ethernet 0/6 or 0/7, then Cisco IP phones and Cisco wireless access points that do not support IEEE 802.3af will not be detected and supplied with power.

Speed

Select the speed for the port:

auto (deafult)

10

100

If you set the speed to anything other than Auto on PoE ports Ethernet 0/6 or 0/7, then Cisco IP phones and Cisco wireless access points that do not support IEEE 802.3af will not be detected and supplied with power.

The default Auto 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 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.


Bridging

This section discusses the following pages:

ARP Table Page

ARP Inspection Page

MAC Address Table Page

MAC Learning Page

Management IP Page

ARP Table Page

Use the ARP Table page to add static ARP entries that map a MAC address to an IP address and identifies the interface through which the host is reached.

Navigation Path

(Device view) Select Platform > Bridging > ARP Table from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Bridging > ARP Table from the Policy Type selector. Right-click ARP Table to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Add/Edit ARP Table Entry Dialog Box

Bridging

ARP Inspection Page

MAC Address Table Page

MAC Learning Page

Management IP Page

Field Reference

Table L-27 ARP Table Page 

Element
Description

Timeout (seconds)

The amount of time, between 60 and 4294967 seconds, before the security appliance rebuilds the ARP table. The default is 14400 seconds.

Rebuilding the ARP table automatically updates new host information and removes old host information. You might want to reduce the timeout because the host information changes frequently.

Note The timeout applies to the dynamic ARP table, and not the static entries contained in the ARP table.

ARP Table

Interface

The interface to which the host is attached.

IP Address

The IP address of the host.

MAC Address

The MAC address of the host.

Alias Enabled

Indicates whether the security appliance performs proxy ARP for this mapping. If this setting is enabled and the security appliance receives an ARP request for the specified IP address, it responds with the security appliance MAC address. When the security appliance receives traffic destined for the host belonging to the IP address, the security appliance forwards the traffic to the host MAC address that you specify in this command. This feature is useful if you have devices that do not perform ARP, for example.

Note In transparent firewall mode, this setting is ignored and the security appliance does not perform proxy ARP.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Add/Edit ARP Table Entry Dialog Box

Use the Add/Edit ARP Table Entry dialog box to add a static ARP entry that maps a MAC address to an IP address and identifies the interface through which the host is reached.

Navigation Path

You can access the Add/Edit ARP Table Entry dialog box from the ARP Table page. For more information about the ARP Table page, see ARP Table Page.

Related Topics

Bridging

ARP Table Page

Field Reference

Table L-28 Add/Edit ARP Table Entry dialog box 

Element
Description

Interface

The name of the interface to which the host network is attached.

IP Address

The IP address of the host.

MAC Address

The MAC address of the host; for example, 00e0.1e4e.3d8b.

Alias Enabled

When selected, enables proxy ARP for this mapping. If the security appliance receives an ARP request for the specified IP address, it responds with the security appliance MAC address. When the security appliance receives traffic destined for the host belonging to the IP address, the security appliance forwards the traffic to the host MAC address that you specify in this command. This feature is useful if you have devices that do not perform ARP, for example.

Note In transparent firewall mode, this setting is ignored and the security appliance does not perform proxy ARP.


ARP Inspection Page

Use the ARP Inspection page to configure ARP inspection for a transparent firewall. ARP inspection is used to prevent ARP spoofing.

Navigation Path

(Device view) Select Platform > Bridging > ARP Inspection from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Bridging > ARP Inspection from the Policy Type selector. Right-click ARP Inspection to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Add/Edit ARP Inspection Dialog Box

Bridging

ARP Table Page

MAC Address Table Page

MAC Learning Page

Management IP Page

Field Reference

Table L-29 ARP Inspection Page 

Element
Description
ARP Inspection Table

Interface

The name of the interface to which the ARP inspection setting applies.

ARP Inspection Enabled

Indicates whether ARP inspection is enabled on the specified interface.

Flood Enabled

Indicates whether packets that do not match any element of a static ARP entry should be flooded out all interfaces except the originating interface. If there is a mismatch between the MAC address, the IP address, or the interface, the security appliance drops the packet. If you do not select this check box, all non-matching packets are dropped.

Note The dedicated management interface, if present, never floods packets even if this parameter is set to flood.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Add/Edit ARP Inspection Dialog Box

Use the Add/Edit ARP Inspection dialog box to enable or disable ARP inspection for a transparent firewall interface.

Navigation Path

You can access the Add/Edit ARP Inspection dialog box from the ARP Inspection page. For more information about the ARP Inspection page, see ARP Inspection Page.

Related Topics

Bridging

ARP Inspection Page

Field Reference

Table L-30 Add/Edit ARP Inspection dialog box 

Element
Description

Interface

The name of the interface for which you are enabling or disabling ARP inspection.

Enable ARP Inspection on this interface

When selected, enables ARP inspection on the specified interface.

Flood ARP packets

When selected, packets that do not match any element of a static ARP entry are flooded out all interfaces except the originating interface. If there is a mismatch between the MAC address, the IP address, or the interface, the security appliance drops the packet. If you do not select this check box, all non-matching packets are dropped.

Note The dedicated management interface, if present, never floods packets even if this parameter is set to flood.


MAC Address Table Page

Use the MAC Address Table page to add static MAC address entries to the MAC Address table. The table associates the MAC address with the source interface so that the security appliance knows to send any packets addressed to the device out the correct interface.

Navigation Path

(Device view) Select Platform > Bridging > MAC Address Table from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Bridging > MAC Address Table from the Policy Type selector. Right-click MAC Address Table to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Add/Edit MAC Table Entry Dialog Box

Bridging

ARP Table Page

ARP Inspection Page

MAC Learning Page

Management IP Page

Field Reference

Table L-31 MAC Address Table Page 

Element
Description

Aging Time (minutes)

Sets the number of minutes, between 5 and 720 (12 hours), that a MAC address entry stays in the MAC address table before timing out. 5 minutes is the default.

MAC Address Table

Interface

The interface to which the MAC address is associated.

MAC Address

The MAC address; for example, 00e0.1e4e.3d8b.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Add/Edit MAC Table Entry Dialog Box

Use the Add/Edit MAC Table Entry dialog box to add static MAC address entries to the MAC Address table or to modify entries in the MAC Address table.

Navigation Path

You can access the Add/Edit MAC Table Entry dialog box from the MAC Address Table page. For more information about the MAC Address Table page, see MAC Address Table Page.

Related Topics

Bridging

MAC Address Table Page

Field Reference

Table L-32 Add/Edit MAC Table Entry dialog box 

Element
Description

Interface

The interface to which the MAC address is associated.

MAC Address

The MAC address; for example, 00e0.1e4e.3d8b.


MAC Learning Page

Use the MAC Learning page to enable or disable MAC address learning on an interface. By default, each interface learns the MAC addresses of entering traffic, and the security appliance adds corresponding entries to the MAC address table. You can disable MAC address learning if desired; however, unless you statically add MAC addresses to the table, no traffic can pass through the security appliance.

Navigation Path

(Device view) Select Platform > Bridging > MAC Learning from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Bridging > MAC Learning from the Policy Type selector. Right-click MAC Learning to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Add/Edit MAC Learning Dialog Box

Bridging

ARP Table Page

ARP Inspection Page

MAC Address Table Page

Management IP Page

Field Reference

Table L-33 MAC Learning Page 

Element
Description
MAC Learning Table

Interface

The interface to which the MAC learning setting applies.

MAC Learning Enabled

Indicates whether the security appliance learns MAC addresses from traffic entering the interface.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Add/Edit MAC Learning Dialog Box

Use the Add/Edit MAC Learning dialog box to enable or disable MAC address learning on an interface.

Navigation Path

You can access the Add/Edit MAC Learning dialog box from the MAC Learning page. For more information about the MAC Learning page, see MAC Learning Page.

Related Topics

Bridging

MAC Learning Page

Field Reference

Table L-34 Add/Edit MAC Learning dialog box 

Element
Description

Interface

The interface to which the MAC learning setting applies.

MAC Learning Enabled

When selected, the security appliance learns MAC addresses from traffic entering the interface.


Management IP Page

Use the Management IP page to set the management IP address for a security appliance or for a context in transparent firewall mode.

Navigation Path

(Device view) Select Platform > Bridging > Management IP from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Bridging > Management IP from the Policy Type selector. Right-click Management IP to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Bridging

ARP Table Page

ARP Inspection Page

MAC Address Table Page

MAC Learning Page

Field Reference

Table L-35 Management IP Page 

Element
Description

Management IP Address

The management IP address.

Subnet Mask

The subnet mask that corresponds to the management IP address.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


AAA Page

This page includes tabs for configuring authentication, authorization, and accounting:

Authentication Tab

Authorization Tab

Accounting Tab

Navigation Path

(Device view) Select Platform > Device Admin > AAA from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Device Admin > AAA from the Policy Type selector. Right-click AAA to create a policy, or select an existing policy from the Shared Policy selector.

Authentication Tab

Use the Authentication tab to enable authentication for administrator access to the security appliance. The Authentication tab also allows you to configure the prompts and messages that a user sees when authenticated by a AAA server.

Navigation Path

You can access the Authentication tab from the AAA page. For more information about the AAA page, see AAA Page.

Related Topics

Configuring AAA, page 15-31

Authorization Tab

Accounting Tab

Field Reference

Table L-36 Authentication Tab 

Element
Description
Require AAA Authentication to allow use of privileged mode commands

Enable

Forces AAA authentication from a server group before you can access enable mode on the firewall. This option allows up to three tries to access the firewall console. If this number is exceeded, an access denied message appears.

Server Group

Provides a drop-down menu from which you can choose a server group to force AAA authentication.

Use LOCAL when server group fails

Uses the LOCAL server group if the selected server group fails.

Require AAA Authorization for the following types of connections

Connection type

Specify the connection types that require authorization:

HTTP—Require AAA authentication when you start an HTTPS connection to the firewall console.

Serial—Require AAA authentication when you connect to the firewall console via the serial console cable. The firewall prompts you for your username and password before you can enter commands. If the authentication server is offline, wait until the console login request times out. You can then access the console with the firewall username and the enable password.

SSH—Require AAA authentication when you start a Secure Shell (SSH) connection to the firewall console. This option allows up to three tries to access the firewall console. If this number is exceeded, an access denied message appears. This option requests a username and password before the first command line prompt on the SSH console.

Telnet—Require AAA authentication when you start a Telnet connection to the firewall console. You must authenticate before you can enter a Telnet command.

Server Group

Specify the server group to use for authorization.

Use LOCAL when server group fails

Uses the LOCAL server group if the selected server group fails.

Authentication Prompts

Login Prompt

Enter the prompt a user will see when logging in to the security appliance.

User Accepted Message

Enter the message a user will see when successfully authenticated by the security appliance.

User Rejected Message

Enter the message a user will see when authentication by the security appliance fails.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Authorization Tab

The Authorization tab allows you to configure authorization for accessing firewall commands.

Navigation Path

You can access the Authorization tab from the AAA page. For more information about the AAA page, see AAA Page.

Related Topics

Configuring AAA, page 15-31

Authentication Tab

Accounting Tab

Field Reference

Table L-37 Authorization Tab 

Element
Description

Enable Authorization for Command Access

Requires authorization for accessing firewall commands.

Server Group

Specify the server group to use for authorization.

Use LOCAL when server group fails

Uses the LOCAL server group if the selected server group fails.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Accounting Tab

Use the Accounting tab to enable accounting for access to the firewall device and for access to commands on the device.

Navigation Path

You can access the Accounting tab from the AAA page. For more information about the AAA page, see AAA Page.

Related Topics

Configuring AAA, page 15-31

Authentication Tab

Authorization Tab

Field Reference

Table L-38 Accounting Tab 

Element
Description
Require AAA Accounting for privileged commands

Enable

When selected, enables the generation of accounting records to mark the entry to and exit from privileged mode for administrative access via the console.

Server Group

Specify the server or group of RADIUS or TACACS+ servers to which accounting records are sent.

Require AAA Accounting for the following types of connections

Connection type

Specify the connection types that will generate accounting records:

HTTP—Enable or disable the generation of accounting records to mark the establishment and termination of admin sessions created over HTTP. Valid server group protocols are RADIUS and TACACS+.

Serial—Enable or disable the generation of accounting records to mark the establishment and termination of admin sessions that are established via the serial interface to the console. Valid server group protocols are RADIUS and TACACS+.

SSH—Enable or disable the generation of accounting records to mark the establishment and termination of admin sessions created over SSH. Valid server group protocols are RADIUS and TACACS+.

Telnet—Enable or disable the generation of accounting records to mark the establishment and termination of admin sessions created over Telnet. Valid server group protocols are RADIUS and TACACS+.

Server Group

Specify the server or group of RADIUS or TACACS+ servers to which accounting records are sent.

Require Accounting for command access

Enable

When selected, enables the generation of accounting records for commands entered by an administrator/user.

Server Group

Provides a drop-down menu from which you can choose the server or group of RADIUS or TACACS+ servers to which accounting records are sent.

Privilege Level

Minimum privilege level that must be associated with a command for an accounting record to be generated. The default privilege level is 0.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Banner Page

Use the Banner page to configure message of the day, login, and session banners.

Navigation Path

(Device view) Select Platform > Device Admin > Banner from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Device Admin > Banner from the Policy Type selector. Right-click Banner to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Server Access

Field Reference

Table L-39 Banner Page 

Element
Description

Session(exec) Banner

Enter text that you want the system to display as a banner before displaying the enable prompt.

Note The tokens $(domain) and $(hostname) are replaced with the hostname and domain name of the security appliance. When you enter a $(system) token in a context configuration, the context uses the banner configured in the system configuration.

Login Banner

Enter text that you want the system to display as a banner before the password login prompt when someone accesses the security appliance using Telnet.

Note The tokens $(domain) and $(hostname) are replaced with the hostname and domain name of the security appliance. When you enter a $(system) token in a context configuration, the context uses the banner configured in the system configuration.

Message-of-the-Day (motd) Banner

Enter text that you want the system to display as a message-of-the-day banner.

Note The tokens $(domain) and $(hostname) are replaced with the hostname and domain name of the security appliance. When you enter a $(system) token in a context configuration, the context uses the banner configured in the system configuration.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Boot Image/Configuration Page

Use the Boot Image/Configuration page to specify which image file the security appliance will boot from, as well as which configuration file it will use at startup. You can also specify the path to the ASDM image file on the security appliance.

Navigation Path

(Device view) Select Platform > Device Admin > Boot Image/Configuration from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Device Admin > Boot Image/Configuration from the Policy Type selector. Right-click Boot Image/Configuration to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Configuring Boot Image and Configuration Settings, page 15-39

Images Dialog Box

Field Reference

Table L-40 Boot Image/Configuration Page 

Element
Description

Boot Config Location

The configuration file to use when the system is loaded. Use the following syntax:

disk0:/[path/]filename

Indicates the internal Flash card. You can also use flash instead of disk0; they are aliased.

disk1:/[path/]filename

Indicates the external Flash card.

flash:/[path/]filename

ASDM Image Location

The location of the ASDM software image to be used when ASDM sessions are initiated. Use the following syntax:

disk0:/[path/]filename

Indicates the internal Flash card. You can also use flash instead of disk0; they are aliased.

disk1:/[path/]filename

Indicates the external Flash card.

flash:/[path/]filename

tftp://[user[:password]@]server[:port]/[path/]filename

Boot Images Table

No.

Identifies the number of the boot image.

Images

Identifies the path and name of the boot image.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Images Dialog Box

Use the Images dialog box to add a boot image entry to the boot order list.

Navigation Path

You can access the Images dialog box from the Boot Image/Configuration page. For more information about the Boot Image/Configuration page, see Boot Image/Configuration Page.

Related Topics

Configuring Boot Image and Configuration Settings, page 15-39

Boot Image/Configuration Page

Field Reference

Table L-41 Images Dialog Box 

Element
Description

Image File

Enter the path and name of the image file to add to the boot order list. See the following syntax:

disk0:/[path/]filename

This option is only available for the ASA platform, and indicates the internal Flash card. You can also use flash instead of disk0; they are aliased.

disk1:/[path/]filename

This option is only available for the ASA platform, and indicates the external Flash card.

flash:/[path/]filename

tftp://[user[:password]@]server[:port]/[path/]filename


Clock Page

The Clock page lets you set the date and time for the security appliance. In multiple context mode, set the time in the system configuration only.

To dynamically set the time using an NTP server, see Configuring NTP Settings, page 15-72; time derived from an NTP server overrides any time set manually on the Clock page.

Navigation Path

(Device view) Select Platform > Device Admin > Clock from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Device Admin > Clock from the Policy Type selector. Right-click Clock to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Configuring Clock Settings, page 15-40

Configuring NTP Settings, page 15-72

NTP Page

Field Reference

Table L-42 Clock Page 

Element
Description

Device Time Zone

Select the time zone for the device from the list.

Daylight Savings Time (Summer Time)

Select whether daylight savings time is used and if so what method is used to specify when daylight savings time applies:

None—Disables daylight savings time on the security appliance.

Set by Date—Select this option to specify the date and time when daylight savings time begins and ends for a specific year. If you use this option, you need to reset the dates every year.

Set Recurring—Select this option to specify the start and end dates for daylight saving time using the month, week, and day on which daylight savings time begins and ends. This option allows you to set a recurring date range that you do not need to alter yearly.

Set by Date

Date (Begin/End)

Enter the date on which daylight savings time begins and ends in MMM dd YYYY format (for example, Jul 15 2005). You can also click Calendar to select the date from a calendar.

Hour (Begin/End)

Select the hour, from 00 to 23, in which daylight savings time begins and the hour in which it ends.

Minute (Begin/End)

Select the minute, from 00 to 59, at which daylight savings time begins and the minute at which it ends.

Set Recurring

Specify Recurring Time

Select this option to specify the start and end dates for daylight saving time using the month, week, and day on which daylight savings time begins and ends. This option allows you to set a recurring date range that you do not need to alter yearly.

Month (Begin/End)

Select the month in which daylight savings time begins and the month in which it ends.

Week (Begin/End)

Select the week of the month in which daylight savings time begins and the week in which it ends. You can select the numerical value that corresponds to the week, 1 through 5, or you can specify the first or last week in the month by selecting first or last. For example, if the day might fall in the partial fifth week, specify "last".

Weekday (Begin/End)

Select the day on which daylight savings time begins and the day on which it ends.

Hour (Begin/End)

Select the hour, from 0 to 23, in which daylight savings time begins and the hour in which it ends.

Minute (Begin/End)

Select the minute, from 00 to 59, at which daylight savings time begins and the minute at which it ends.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Credentials Page

Use the Credentials page to specify the future contact settings that Security Manager should use when contacting a device. You can also use the Contact Credentials page to change the login password and the enable password on a device.

Navigation Path

(Device view) Select Platform > Device Admin > Credentials from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Device Admin > Credentials from the Policy Type selector. Right-click Credentials to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Configuring Contact Credentials, page 15-42

User Accounts Page

Field Reference

Table L-43 Contact Credentials Page 

Element
Description

Username

Specifies the username for logging in to the device.

Password

Specifies the password for logging in to the device.

Confirm

Confirms the password entered in the Password field. The values in the Password and Confirm fields must match before you can save these settings.

Privilege Level

Specifies the privilege level of the user logging in to the device.

Enable Password

Specifies the new enable password for the device.

Confirm

Confirms the password entered in the Enable Password field. The values in the Enable Password and Confirm fields must match before you can save these settings.

Telnet/SSH Password

Specifies the new login password for the device.

Confirm

Confirms the password entered in the Telnet/SSH Password field. The values in the Telnet/SSH Password and Confirm fields must match before you can save these settings.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


CPU Threshold Page

Use the CPU Threshold Page to specify the percentage of CPU usage above which you want to receive a notification and the duration that the usage must remain above that threshold before the notification is generated.

Navigation Path

(Device view) Select Platform > Device Admin > CPU Threshold from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Device Admin > CPU Threshold from the Policy Type selector. Right-click CPU Threshold to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Configuring SNMP, page 15-50

SNMP Page

SNMP Trap Configuration Dialog Box

Field Reference

Table L-44 CPU Threshold Page 

Element
Description

CPU Rising Threshold Percentage

Enter the percentage of CPU usage above which you want to receive a notification. If the CPU utilization percentage is equal to or above this value for the duration specified in the CPU Monitoring Period field then a notification will be sent.

CPU Monitoring Period (seconds)

Enter the number of seconds that the percentage of CPU usage must remain at or above the threshold set in the CPU Rising Threshold Percentage field before a notification is sent.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Device Access

The Device Access section is located under the Device Admin folder in the Policy selector. The following topics describe the pages for Device Access:

Console Page

HTTP Page

ICMP Page

Management Access Page

Secure Shell Page

SNMP Page

Telnet Page

Console Page

Use the Console page to specify a time period for the management console to remain active. When the time limit you specify is reached, the console shuts down.

Navigation Path

(Device view) Select Platform > Device Admin > Device Access > Console from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Device Admin > Device Access > Console from the Policy Type selector. Right-click Console to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Device Access

Field Reference

Table L-45 Console Page 

Element
Description

Console Timeout (minutes)

Number of minutes a console session can remain idle before the firewall device closes it. Valid values are 0-60 minutes. To prevent a console session from timing out, enter 0.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


HTTP Page

The HTTP page provides a table that specifies the addresses of all the hosts or networks that are allowed access to the firewall device using HTTPS. You can use this table to add or change the hosts or networks that are allowed access.

The HTTP page also displays information about HTTP redirection and HTTPS user certificate requirements for interfaces on the firewall device. You can use this table to change the entries for HTTP redirection and HTTPS user certificate requirements.

Navigation Path

(Device view) Select Platform > Device Admin > Device Access > HTTP from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Device Admin > Device Access > HTTP from the Policy Type selector. Right-click HTTP to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Device Access

HTTP Configuration Dialog Box

Field Reference

Table L-46 HTTP Page 

Element
Description

Enable HTTP Server

Enables or disables HTTPS access to the firewall device.

HTTP Interface Table

Interface

Lists the interface on the firewall device from which the administrative access to the device manager is allowed.

Network

Lists the IP address and netmask, separated by a "/", of hosts or networks that are permitted to establish an HTTPS connection with the firewall device.

Authentication Certificate

Identifies if a user certificate is required to authenticate users who are establishing HTTPS connections.

Redirect Port

Identifies the port the security appliance listens on for HTTP requests, which it then redirects to HTTPS. If this column is empty, then HTTP redirect is disabled.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


HTTP Configuration Dialog Box

Use the HTTP Configuration dialog box to add a host or network that will be allowed administrative access to the firewall device manager over HTTPS.

Navigation Path

You can access the HTTP Configuration dialog box from the HTTP page. For more information about the HTTP page, see HTTP Page.

Related Topics

Device Access

HTTP Page

Field Reference

Table L-47 HTTP Configuration Dialog Box 

Element
Description

Interface Name

Specifies the interface on the firewall device from which administrative access to the firewall device manager is allowed.

IP Address/Netmask

Enter the IP address and netmask, separated by a "/", of the host or network that is permitted to establish an HTTPS connection with the firewall device.

Enable Authentication Certificate

Specifies whether user certificate authentication is required to establish an HTTPS connection.

Redirect port

Identifies the port the security appliance listens on for HTTP requests, which it then redirects to HTTPS. To disable HTTP redirect, ensure that this field is blank.


ICMP Page

The ICMP page provides a table that lists the ICMP rules, which specify the addresses of all the hosts or networks that are allowed or denied ICMP access to the firewall device. You can use this table to add or change the hosts or networks that are allowed to or prevented from sending ICMP messages to the firewall device.

Navigation Path

(Device view) Select Platform > Device Admin > Device Access > ICMP from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Device Admin > Device Access > ICMP from the Policy Type selector. Right-click ICMP to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Device Access

ICMP Configuration Dialog Box

Field Reference

Table L-48 ICMP Page 

Element
Description
ICMP Rules Table

Interface

Lists the interface on the security appliance from which ICMP access is allowed.

Action

Displays whether ICMP messages are permitted or denied from the specified network or host.

Network

Lists the IP address and netmask, separated by a "/", of hosts or networks that are allowed or denied access.

ICMP Service

Lists the type of ICMP message to which the rule applies.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


ICMP Configuration Dialog Box

Use the ICMP Configuration dialog box to add or modify an ICMP rule, which specifies the addresses of all the hosts or networks that are allowed or denied ICMP access to the firewall device.

Navigation Path

You can access the ICMP Configuration dialog box from the ICMP page. For more information about the ICMP page, see ICMP Page.

Related Topics

Device Access

ICMP Page

Field Reference

Table L-49 ICMP Configuration Dialog Box 

Element
Description

Interface

Identifies the interface on the firewall device from which ICMP access is allowed.

Network

Specifies the IP address and netmask, separated by a "/", of the host or network that is allowed or denied access.

Action

Displays whether ICMP messages are permitted or denied from the specified network or host.

PermitCauses ICMP messages from the specified host or network and interface to be allowed.

DenyCauses ICMP messages from the specified host or network and interface to be dropped.

ICMP Service

Specifies the type of ICMP message to which the rule applies.


Management Access Page

The Management Access page lets you enable or disable management access on a high-security interface and thus lets you perform management functions on the firewall device. Use this feature if VPN is configured on the firewall device and the external interface is using a dynamically assigned IP address. For example, this feature is helpful for accessing and managing the firewall device securely from home using the VPN client.

Navigation Path

(Device view) Select Platform > Device Admin > Device Access > Management Access from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Device Admin > Device Access > Management Access from the Policy Type selector. Right-click Management Access to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Device Access

Field Reference

Table L-50 Management Access Page 

Element
Description

Management Access Interface

Name of firewall device interface that permits management access connections. You can click Select to select the interface from a list of interface objects.

You can enable this feature on an internal interface to allow management functions to be performed on the interface over an IPsec VPN tunnel. You can enable the Management Access feature on only one interface at a time. Clear the Management Access Interface field to disable management access.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Secure Shell Page

Use the Secure Shell page to configure rules that permit only specific hosts or networks to connect to a firewall device for administrative access using the SSH protocol.

Navigation Path

(Device view) Select Platform > Device Admin > Device Access > Secure Shell from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Device Admin > Device Access > Secure Shell from the Policy Type selector. Right-click Secure Shell to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Configuring Secure Shell, page 15-49

Device Access

SSH Configuration Dialog Box

Field Reference

Table L-51 Secure Shell Page 

Element
Description

Enable Secure Copy Server

Select this check box to enable the secure copy server on the security appliance.

Allowed SSH Version(s)

Restricts the version of SSH accepted by the firewall device. By default, SSH Version 1 and SSH Version 2 connections are accepted.

Timeout (minutes)

Displays the number of minutes, 1 to 60, the Secure Shell session can remain idle before the firewall device closes it.

Secure Shell Access Rule table

Interface

Displays the name of the firewall device interface that will permit SSH connections.

Network

Displays the IP address and netmask of each host or network permitted to connect to this security appliance through the specified interface.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


SSH Configuration Dialog Box

Use the SSH Configuration dialog box to add an SSH access rule to the rule table or to edit an SSH access rule.

Navigation Path

You can access the SSH Configuration dialog box from the Secure Shell page. For more information about the Secure Shell page, see Secure Shell Page.

Related Topics

Configuring Secure Shell, page 15-49

Device Access

Secure Shell Page

Field Reference

Table L-52 SSH Configuration Dialog Box 

Element
Description

Interface

Specifies the name of the firewall device interface that permits SSH connections.

IP Address/Netmask

Enter the IP address and netmask, separated by a "/", of the host or network that is permitted to establish an SSH connection with the firewall device.


SNMP Page

The SNMP page lets you configure the security appliance for monitoring by Simple Network Management Protocol (SNMP) management stations.

Navigation Path

(Device view) Select Platform > Device Admin > Device Access > SNMP from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Device Admin > Device Access > SNMP from the Policy Type selector. Right-click SNMP to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Configuring SNMP, page 15-50

Device Access

SNMP Trap Configuration Dialog Box

Add SNMP Host Access Entry Dialog Box

Field Reference

Table L-53 SNMP Page 

Element
Description

Password (Community String)

Enter the password used by the SNMP management station when sending requests to the firewall. The SNMP community string is a shared secret among the SNMP management stations and the network nodes being managed. The firewall uses the password to determine if the incoming SNMP request is valid. The password is a case-sensitive value up to 32 characters in length. Spaces are not permitted.

System Administrator Name

Enter the name of the firewall system administrator. The text is case-sensitive and can be up to 127 characters. Spaces are accepted, but multiple spaces are shortened to a single space.

Location

Specify the firewall location. The text is case-sensitive and can be up to 127 characters. Spaces are accepted, but multiple spaces are shortened to a single space.

Port (PIX 7.x and ASA only)

Specify the port on which incoming requests will be accepted.

Configure Traps button

Click to open the SNMP Trap Configuration dialog box from which you can configure SNMP trap settings.

SNMP Hosts Table

Interface

Identifies the interface on which the SNMP management station resides.

IP Address

Identifies the IP address of the SNMP management station.

Community String

Identifies the password used by the SNMP management station when sending requests to the firewall. The SNMP community string is a shared secret among the SNMP management stations and the network nodes being managed. The firewall uses the password to determine if the incoming SNMP request is valid. The password is a case-sensitive value up to 32 characters in length. Spaces are not permitted.

SNMP Version

Identifies the version of SNMP set on the management station.

Poll/Trap

Displays the method for communicating with this management station, poll only, trap only, or both trap and poll.

Poll—Firewall device waits for a periodic request from the management station.

Trap—Sends syslog events when they occur.

UDP Port

Specifies the UDP port for the SNMP host. The default value is 162 for the SNMP host UDP port.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


SNMP Trap Configuration Dialog Box

Use the SNMP Trap Configuration dialog box to configure trap settings.

Traps are different than browsing; they are unsolicited "comments" from the managed device to the management station for certain events, such as link up, link down, and syslog event generated.

An SNMP object ID (OID) for the security appliance displays in SNMP event traps sent from the security appliance. Firewall devices provide system OID in SNMP event traps & SNMP mib-2.system.sysObjectID.

The SNMP service running on a firewall device performs two different functions:

Replies to SNMP requests from management stations (also known as SNMP clients).

Sends traps (event notifications) to management stations or other devices that are registered to receive them from the security appliance.

Cisco firewall devices support 3 types of traps:

firewall

generic

syslog

Navigation Path

You can access the SNMP Trap Configuration dialog box from the SNMP page. For more information about the SNMP page, see SNMP Page.

Related Topics

Configuring SNMP, page 15-50

Device Access

SNMP Page

Add SNMP Host Access Entry Dialog Box

Field Reference

Table L-54 SNMP Trap Configuration Dialog Box 

Element
Description

Standard SNMP Traps
(PIX 7.x, ASA, and FWSM only)

Select the standard SNMP traps you want sent:

Authentication—Enables authentication standard trap.

Cold Start—Enables cold start standard trap.

Link Up—Enables link up standard trap.

Link Down—Enables link down standard trap.

Entity MIB Notifications
(PIX 7.x and ASA only)

Select the Entity MIB Notifications that you want to enable:

FRU Insert—Enables a trap notification when a Field Replaceable Unit (FRU) has been inserted.

FRU Remove—Enables a trap notification when a Field Replaceable Unit (FRU) has been removed.

Configuration Change—Enables a trap notification when there has been a hardware change.

IPsec Traps
(PIX 7.x and ASA only)

Select the IPsec traps that you want to enable:

Start—Enables a trap when IPsec starts.

Stop—Enables a trap when IPsec stops.

Remote Access Traps
(PIX 7.x and ASA only)

Select the Remote Access traps that you want to enable:

Session Threshold Exceeded—Enables the firewall device send traps when remote access sessions reach the defined limit.

Enable Syslog Traps

Enables or disables the sending of syslog messages to the SNMP management station.


Add SNMP Host Access Entry Dialog Box

Use the Add SNMP Host Access Entry dialog box to add SNMP management stations.

Navigation Path

You can access the Add SNMP Host Access Entry dialog box from the SNMP page. For more information about the SNMP page, see SNMP Page.

Related Topics

Device Access

SNMP Page

SNMP Trap Configuration Dialog Box

Field Reference

Table L-55 Add SNMP Host Access Entry Dialog Box 

Element
Description

Interface Name

Select the interface on which the SNMP management station resides. You can click Select to select the interface from a list of interface objects.

IP Address

Enter the IP address of the SNMP management station. You can click Select to select the IP address from a list of IP address objects.

UDP Port

Enter the UDP port for the SNMP host. This field allows you to override the default value of 162 for the SNMP host UDP port.

Community String

Enter the password used by the SNMP management station when sending requests to the firewall. The SNMP community string is a shared secret among the SNMP management stations and the network nodes being managed. The firewall uses the password to determine if the incoming SNMP request is valid. The password is a case-sensitive value up to 32 characters in length. Spaces are not permitted.

SNMP Version

Select the version of SNMP set on the management station.

Server Poll/Trap Specification

Specify the method for communicating with this management station, poll only, trap only, or both trap and poll.

Poll—Firewall device waits for a periodic request from the management station.

Trap—Sends syslog events when they occur.


Telnet Page

Use the Telnet page to configure rules that permit only specific hosts or networks to connect to the firewall device using the Telnet protocol.

Navigation Path

(Device view) Select Platform > Device Admin > Device Access > Telnet from the Device Policy selector.

(Policy view) Select PIX/ASA/FWSM Platform > Device Admin > Device Access > Telnet from the Policy Type selector. Right-click Telnet to create a policy, or select an existing policy from the Shared Policy selector.

Related Topics

Configuring Telnet, page 15-54

Device Access

Telnet Configuration Dialog Box

Field Reference

Table L-56 Telnet Page 

Element
Description

Timeout (minutes)

Number of minutes Telnet session can remain idle before the firewall device closes it. Values are 1-60 minutes. Default is 5.

Telnet Access Table

Interface

Interface that receives Telnet packets from the client.

Network

The IP address and network mask of the host or network that can access the Telnet console on the firewall device.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Telnet Configuration Dialog Box

Use the Telnet Configuration dialog box to configure Telnet options for an interface.

Navigation Path

You can access the Telnet Configuration dialog box from the Telnet page. For more information about the Telnet page, see Telnet Page.

Related Topics

Configuring Telnet, page 15-54

Device Access

Telnet Page

Field Reference

Table L-57 Telnet Configuration Dialog Box 

Element
Description

Interface Name

Select the interface that receives Telnet packets from the client. You can click Select to select the interface from a list of interface objects.

Network

Enter the IP address and netmask, separated by a "/", of the host or network that is permitted to access the firewall device's Telnet console through the specified interface. Use a comma to separate entries for multiple networks or hosts. You can click Select to select the networks from a list of network objects.

Note To limit access to a single IP address, use 255.255.255.255 or 32 as the netmask. Do not use the subnetwork mask of the internal network.


Failover Policies

This section discusses the pages that you use to configure failover for your firewall devices. The pages that are available for firewall configuration change depending on the type of firewall device you are configuring.

PIX 6.x Firewalls

Failover Page (PIX 6.x)

Edit Failover Interface Configuration Dialog Box (PIX 6.x)

Bootstrap Configuration for LAN Failover Dialog Box

Firewall Services Modules

Failover Page (FWSM)

Advanced Settings Dialog Box

Add Interface MAC Address Dialog Box

Edit Failover Interface Configuration Dialog Box (FWSM)

Bootstrap Configuration for LAN Failover Dialog Box

Adaptive Security Appliances and PIX 7.0 Firewalls

Failover Page (ASA/PIX 7.x)

Settings Dialog Box

Add Failover Group Dialog Box

Edit Failover Interface Configuration Dialog Box (ASA/PIX 7.x)

Add Interface MAC Address Dialog Box

Bootstrap Configuration for LAN Failover Dialog Box

Failover Page (PIX 6.x)

Use the Failover page to configure failover settings for a PIX 6.x Firewall.

Navigation Path

To access this feature, select a firewall device in Device View and then select Platform > Device Admin > Failover from the Device Policy selector.

Related Topics

Failover Policies

Edit Failover Interface Configuration Dialog Box (PIX 6.x)

Bootstrap Configuration for LAN Failover Dialog Box

Field Reference

Table L-58 Failover Page (PIX 6.x) 

Element
Description
Failover

Enable Failover

Specifies whether failover is enabled on this device.

Note To enable failover, you must ensure that both devices have the same software version, activation key type, Flash memory, and RAM.

LAN-Based Failover

Enable LAN-based failover

Specifies whether LAN-based failover is enabled on this device.

Interface

Allows you to select the interface to use for LAN-based failover.

Shared Key

Used to encrypt communication between primary and standby devices. Value can be any string.

Stateful Failover

Enable Stateful Failover

Specifies whether stateful failover is enabled on this device.

Note If you enable stateful failover, you must select a fast LAN link from the list, (for example, 100full, 1000full, or 1000sxfull).

Enable HTTP Replication

Enables stateful failover to copy active HTTP sessions to standby PIX Firewall.

Interface
(fast LAN link is required)

Allows you to select an interface with a fast LAN link. A dedicated fast LAN link is required in addition to failover cable to support stateful failover.

Failover Poll Time

Specifies how long failover waits before determining if other devices remain available between primary and standby devices over all network interfaces and failover cable. Values are 3-15 seconds. Default is 15.

Failover Interface Table

Interface

Displays the name of the interface on the active firewall device to be used for communication with standby device for failover. When configured for stateful failover, the interface is connected directly to the standby device.

Active IP Address

Displays the IP address of the active interface. This address is used by the standby device to communicate with the active device. The address must be on the same network as the system IP address.

Tip You can use this IP address with the ping tool to check the status of the active device.

Standby IP Address

Displays the IP address of the standby interface. This address is used by the active device to communicate with the standby device. The address must be on same network as system IP address.

Tip You can use this IP address with the ping tool to check the status of the standby device.

Active MAC Address

Displays the MAC address of the active interface in hexadecimal format (for example, 0123.4567.89ab).

Standby MAC Address

Displays the MAC address of the standby interface in hexadecimal format (for example, 0123.4567.89ab).

Edit Row button

Click to display the Edit Failover Interface Configuration dialog box.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Edit Failover Interface Configuration Dialog Box (PIX 6.x)

Use the Edit Failover Interface Configuration dialog box to configure a failover interface for PIX 6.x devices.

Navigation Path

You can access the Edit Failover Interface Configuration dialog box from the Failover page. For more information about the Failover page, see Failover Page (PIX 6.x).

Related Topics

Failover Policies

Failover Page (PIX 6.x)

Field Reference

Table L-59 Edit Failover Interface Configuration Dialog Box (PIX 6.x) 

Element
Description

Interface

Displays the name of the interface on the active firewall device to be used for communication with standby device for failover. When configured for stateful failover, the interface is connected directly to the standby device.

Active IP Address

Displays the IP address of the active interface. This address is used by the standby device to communicate with the active device. The address must be on the same network as the system IP address.

Tip You can use this IP address with the ping tool to check the status of the active device.

Netmask

Displays the netmask of the active device.

Standby IP Address

Specify the IP address of the standby interface. This address is used by the active device to communicate with the standby device. The address must be on the same network as the system IP address.

Tip You can use this IP address with the ping tool to check the status of the standby device.
Failover MAC Addresses

Active MAC Address

Specifies the MAC address of the active interface in hexadecimal format (for example, 0123.4567.89ab).

Standby MAC Address

Specifies the MAC address of the standby interface in hexadecimal format (for example, 0123.4567.89ab).


Failover Page (FWSM)

Use the Failover page to configure basic failover settings for FWSMs.

Navigation Path

To access this feature, select a FWSM in Device View and then select Platform > Device Admin > Failover from the Device Policy selector.

Related Topics

Failover Policies

Advanced Settings Dialog Box

Edit Failover Interface Configuration Dialog Box (FWSM)

Bootstrap Configuration for LAN Failover Dialog Box

Field Reference

Table L-60 Failover Page (FWSM) 

Element
Description

Enable Failover

Specifies whether failover is enabled on this device.

You must configure the logical LAN failover interface and, optionally, the stateful failover interface.

Note To enable failover, you must ensure that both devices have the same software version, activation key type, Flash memory, and RAM.

Configuration (FWSM 3.x only)

Active/Active option
(FWSM 3.x only)

In an Active/Active failover configuration, both security appliances pass network traffic. Active/Active failover is only available to security appliances in multiple context mode.

To enable Active/Active failover on the security appliance, you must create failover groups. If you enable failover without creating failover groups, you are enabling Active/Standby failover. A failover group is a logical group of one or more security contexts. You can create two failover groups on the security appliance. You should create the failover groups on the unit that will have failover group 1 in the active state. The admin context is always a member of failover group 1. Any unassigned security contexts are also members of failover group 1 by default.

Active/Standby option
(FWSM 3.x only)

In an Active/Standby configuration, the active security appliance handles all network traffic passing through the failover pair. The standby security appliance does not handle network traffic until a failure occurs on the active security appliance. Whenever the configuration of the active security appliance changes, it sends configuration information over the failover link to the standby security appliance.

When a failover occurs, the standby security appliance becomes the active unit. It assumes the IP and MAC addresses of the previously active unit. Because the other devices on the network do not see any changes in the IP or MAC addresses, ARP entries do not change or time out anywhere on the network.

Active/Standby failover is available to security appliances in single mode or multiple mode.

Settings button

Click to display the Advance Settings dialog box. See Advanced Settings Dialog Box for more information.

LAN Failover

VLAN

VLAN interface you are using for the failover link, for example, VLAN 11.

Logical Name

The logical name of the interface on the active firewall device that communicates with the standby device for failover. When configured for stateful failover, the interface is directly connected to the standby device.

Active IP Address

Specifies the IP address of the active interface.

Standby IP Address

Specifies the IP address of the standby interface.

Subnet Mask

Mask that corresponds with active and standby IP addresses.

State Failover

VLAN

VLAN interface you are using for the stateful failover link, for example, VLAN 12.

Logical Name

The logical name of the interface on active firewall device that communicates with the standby device for failover. When configured for stateful failover, the interface is directly connected to the standby device.

Active IP Address

Specifies the IP address of the active interface.

Standby IP Address

Specifies the IP address of the standby interface.

Subnet Mask

Mask that corresponds with active and standby IP addresses.

Enable HTTP Replication check box

Enables stateful failover to copy active HTTP sessions to a standby firewall.

Suspend Configuration Synchronization

(FWSM 2.3 only)

When selected, configurations between the active and standby device are no longer synchronized.

Note You cannot disable this feature using the Security Manager user interface. To disable this feature after enabling it in Security Manager, issue the no failover suspend-config-sync command directly on the device or by using the FlexConfig feature. For more information on FlexConfigs, see Understanding FlexConfig Policy Objects, page 19-2, page 19-1.

Shared Key
(FWSM 3.x only)

To encrypt and authenticate the communication between failover peers, specify a shared secret in the Shared Key field for the active unit of an Active/Standby failover pair or on the unit that has failover group 1 in the active state of an Active/Active failover pair. The shared key can be from 1 to 63 characters and can be any combination of numbers, letters, or punctuation.


Caution All information sent over the failover and Stateful Failover links is sent in clear text unless you secure the communication with a failover key. If FWSM is used to terminate VPN tunnels, this information includes any usernames, passwords and preshared keys used for establishin.g the tunnels. Transmitting this sensitive data in clear text could pose a significant security risk. We recommend securing the failover communication with a failover key if you are using FWSM to terminate VPN tunnels.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Advanced Settings Dialog Box

The Advanced Settings dialog box allows you to configure additional failover settings for FWSMs.

Navigation Path

You can access the Advance dialog box from the Failover page. For more information about the Failover page, see Failover Page (FWSM).

Related Topics

Failover Policies

Failover Page (FWSM)

Add Interface MAC Address Dialog Box

Field Reference

Table L-61 Advance Dialog Box 

Element
Description
Interface Policy

Number of failed interfaces that triggers failover option

When the number of failed monitored interfaces exceeds the value you set with this command, the security appliance fails over. The range is between 1 and 250 failures.

Percentage of failed interfaces that triggers failover option

When the number of failed monitored interfaces exceeds the percentage you set with this command, the security appliance fails over.

Failover Poll Time

Unit Failover

The amount of time between hello messages among units. The range is between 1 and 15 seconds or between 500 and 999 milliseconds.

Unit Hold Time

Sets the time during which a unit must receive a hello message on the failover link, or else the unit begins the testing process for peer failure. The range is between 3 and 45 seconds. You cannot enter a value that is less than 3 times the poll time.

Monitored Interface

The amount of time between polls among interfaces. The range is between 3 and 15 seconds.

MAC Address Mapping

Physical Interface

Specifies the physical interface for which failover virtual MAC addresses are configured.

Active MAC Address

Specifies the MAC address of the active interface in hexadecimal format (for example, 0123.4567.89ab).

Standby MAC Address

Specifies the MAC address of the standby interface in hexadecimal format (for example, 0123.4567.89ab).


Edit Failover Interface Configuration Dialog Box (FWSM)

Use the Edit Failover Interface Configuration dialog box to configure a failover interface for FWSMs.

Navigation Path

You can access the Edit Failover Interface Configuration dialog box from the Failover page. For more information about the Failover page, see Failover Page (FWSM).

Related Topics

Failover Policies

Failover Page (FWSM)

Field Reference

Table L-62 Edit Failover Interface Configuration Dialog Box (FWSM) 

Element
Description

Interface Name

Identifies the interface name.

Active IP Address

Identifies the IP address for this interface. This field does not appear if an IP address has not been assigned to the interface.

Standby IP Address

Specifies the IP address of the corresponding interface on the standby failover unit. This field does not appear if an IP address has not been assigned to the interface.

Monitor this interface for failure

Specifies whether this interface is monitored for failure. The number of interfaces that can be monitored for the security appliance is 250. Hello messages are exchanged between the security appliance failover pair during every interface poll time period. The failover interface poll time is 3 to 15 seconds. For example, if the poll time is set to 5 seconds, testing begins on an interface if 5 consecutive hellos are not heard on that interface (25 seconds). Monitored failover interfaces can have the following status:

Unknown—Initial status. This status can also mean the status cannot be determined.

Normal—The interface is receiving traffic.

Testing—Hello messages are not heard on the interface for five poll times.

Link Down—The interface is administratively down.

No Link—The physical link for the interface is down.

Failed—No traffic is received on the interface, yet traffic is heard on the peer interface.


Failover Page (ASA/PIX 7.x)

Use the Failover page to configure basic failover settings for ASAs and PIX 7.x firewalls.

Navigation Path

To access this feature, select an ASA or PIX 7.x firewall device in Device View and then select Platform > Device Admin > Failover from the Device Policy selector.

Related Topics

Failover Policies

Settings Dialog Box

Add Failover Group Dialog Box

Edit Failover Interface Configuration Dialog Box (ASA/PIX 7.x)

Add Interface MAC Address Dialog Box

Bootstrap Configuration for LAN Failover Dialog Box

Field Reference

Table L-63 Failover Page (ASA/PIX 7.x) 

Element
Description

Enable Failover

Specifies whether failover is enabled on this device.

You must configure the logical LAN failover interface and, optionally, the stateful failover interface.

Note To enable failover, you must ensure that both devices have the same software version, activation key type, Flash memory, and RAM.

Configuration

Active/Active option

In an Active/Active failover configuration, both security appliances pass network traffic. Active/Active failover is only available to security appliances in multiple context mode.

To enable Active/Active failover on the security appliance, you must create failover groups. If you enable failover without creating failover groups, you are enabling Active/Standby failover. A failover group is a logical group of one or more security contexts. You can create two failover groups on the security appliance. You should create the failover groups on the unit that will have failover group 1 in the active state. The admin context is always a member of failover group 1. Any unassigned security contexts are also members of failover group 1 by default.

Active/Standby option

In an Active/Standby configuration, the active security appliance handles all network traffic passing through the failover pair. The standby security appliance does not handle network traffic until a failure occurs on the active security appliance. Whenever the configuration of the active security appliance changes, it sends configuration information over the failover link to the standby security appliance.

When a failover occurs, the standby security appliance becomes the active unit. It assumes the IP and MAC addresses of the previously active unit. Because the other devices on the network do not see any changes in the IP or MAC addresses, ARP entries do not change or time out anywhere on the network.

Active/Standby failover is available to security appliances in single mode or multiple mode.

Settings button

Click to display the Settings dialog box. See Settings Dialog Box for more information.

LAN Failover

Interface

Interface you are using for the failover link.

Logical Name

The logical name of the interface on the active firewall device to communicate with standby device for failover. When configured for stateful failover, the interface is directly connected to the standby device.

Active IP Address

Specifies the IP address of the active interface.

Standby IP Address

Specifies the IP address of the standby interface.

Subnet Mask

Netmask that corresponds with active and standby IP addresses.

Bootstrap button

Click to display the Bootstrap Configuration for LAN Failover dialog box. See Bootstrap Configuration for LAN Failover Dialog Box for more information.

State Failover

Interface

Interface you are using for the stateful failover link.

Logical Name

The logical name of the interface on the active firewall device to communicate with standby device for failover. When configured for stateful failover, the interface is directly connected to the standby device.

Active IP Address

Specifies the IP address of the active interface.

Standby IP Address

Specifies the IP address of the standby interface.

Subnet Mask

Netmask that corresponds with active and standby IP addresses.

Enable HTTP Replication

When selected, enables stateful failover to copy active HTTP sessions to standby firewall.

Shared Key

Used to encrypt communication between primary and standby devices. Value can be any string.

Save button

Saves your changes to the server but keeps them private.

Note To publish your changes, click the Submit button on the toolbar.


Settings Dialog Box

The Settings dialog box allows you to define criteria for when failover should occur on an ASAs or PIX 7.x Firewall.

Navigation Path

You can access the Settings dialog box from the Failover page. For more information about the Failover page, see Failover Page (ASA/PIX 7.x).

Related Topics

Failover Policies

Failover Page (ASA/PIX 7.x)

Add Failover Group Dialog Box

Edit Failover Interface Configuration Dialog Box (ASA/PIX 7.x)

Add Interface MAC Address Dialog Box

Bootstrap Configuration for LAN Failover Dialog Box

Field Reference

Table L-64 Settings Page 

Element
Description
Interface Policy

Number of failed interfaces that triggers failover option

When the number of failed monitored interfaces exceeds the value you set with this command, the security appliance fails over. The range is between 1 and 250 failures.

Percentage of failed interfaces that triggers failover option

When the number of failed monitored interfaces exceeds the percentage you set with this command, the security appliance fails over.

Failover Poll Time

Unit Failover

The amount of time between hello messages among units. The range is between 1 and 15 seconds or between 500 and 999 milliseconds.

Unit Hold Time

Sets the time during which a unit must receive a hello message on the failover link, or else the unit begins the testing process for peer failure. The range is between 3 and 45 seconds. You cannot enter a value that is less than 3 times the poll time.

Monitored Interface

The amount of time between polls among interfaces. The range is between 3 and 15 seconds.

Failover Groups

Group Number

Specifies the failover group number. This number is used when assigning contexts to failover groups.

Preferred Role

Specifies the unit in the failover pair, primary or secondary, on which the failover group appears in the active state when both units start up simultaneously or when the preempt option is selected. You can have both failover groups in the active state on a single unit in the pair, with the other unit containing the failover groups in the standby state. However, a more typical configuration is to assign each failover group a different role preference to make each one active on a different unit, balancing the traffic across the devices.

Preempt Enabled

Specifies whether the unit that is the preferred failover device for this failover group should become the active unit after rebooting.

Preempt Delay

Specifies the number of seconds that the preferred failover device should wait after rebooting before taking over as the active unit for this failover group. The range is between 0 and 1200 seconds.

Interface Policy

Specifies either the number of monitored interface failures or the percentage of failures that are allowed before the group fails over. The range is between 1 and 250 failures or 1 and 100 percent.

Interface Poll Time

Specifies the amount of time between polls among interfaces. The range is between 3 and 15 seconds.

Replicate HTTP

Identifies whether Stateful Failover should copy active HTTP sessions to the standby firewall for this failover group. If you do not allow HTTP replication, HTTP connections are disconnected at failover. Disabling HTTP replication reduces the amount of traffic on the state link. This setting overrides the HTTP replication setting on the Setup tab.

MAC Address

Identifies the MAC address of the active interface.

MAC Address Mapping

Physical Interface

Specifies the physical interface for which failover virtual MAC addresses are configured.

Active MAC Address

Specifies the MAC address of the active interface in hexadecimal format (for example, 0123.4567.89ab).

Standby MAC Address

Specifies the MAC address of the standby interface in hexadecimal format (for example, 0123.4567.89ab).

Monitor Interface Configuration

Interface Name

Displays the name of the interface.

Is Monitored

Specifies whether this interface is monitored for failure. The number of interfaces that can be monitored for the security appliance is 250. Hello messages are exchanged between the security appliance failover pair during every interface poll time period. The failover interface poll time is 3 to 15 seconds. For example, if the poll time is set to 5 seconds, testing begins on an interface if 5 consecutive hellos are not heard on that interface (25 seconds). Monitored failover interfaces can have the following status:

Unknown—Initial status. This status can also mean the status cannot be determined.

Normal—The interface is receiving traffic.

Testing—Hello messages are not heard on the interface for five poll times.

Link Down—The interface is administratively down.

No Link—The physical link for the interface is down.

Failed—No traffic is received on the interface, yet traffic is heard on the peer interface.

Edit Row button

Click to display the Edit Failover Interface Configuration dialog box to edit a failover interface configuration.

Management IP Address

Active

Specifies the management IP address of the active device.

Netmask

Specifies the netmask that corresponds with the active and standby IP addresses.

Standby

Specifies the management IP address of the standby device.


Add Failover Group Dialog Box

Use the Add Failover Group dialog box to define failover groups for an Active/Active failover configuration.

Navigation Path

You can access t