Cisco FirePOWER ASA 5500 series Configuration Manual page 129

Chapter 9 Configuring IP Routing
To track a static route, enter the following command:
•
hostname(config)# route if_name dest_ip mask gateway_ip [admin_distance] track
track_id
You cannot use the tunneled option with the route command with static route tracking.
To track a default route obtained through DHCP, enter the following commands:
•
hostname(config)# interface phy_if
hostname(config-if)# dhcp client route track track_id
hostname(config-if)# ip addresss dhcp setroute
hostname(config-if)# exit
Note
• To track a default route obtained through PPPoE, enter the following commands:
hostname(config)# interface phy_if
hostname(config-if)# pppoe client route track track_id
hostname(config-if)# ip addresss pppoe setroute
hostname(config-if)# exit
Note
Step 4 Define the backup route to use when the tracked object is unavailable using one of the following options.
The administrative distance of the backup route must be greater than the administrative distance of the
tracked route. If it is not, the backup route will be installed in the routing table instead of the tracked
route.
To use a static route, enter the following command:
•
hostname(config)# route if_name dest_ip mask gateway_ip [admin_distance]
The static route must have the same destination and mask as the tracked route. If you are tracking a
default route obtained through DHCP or PPPoE, then the address and mask would be 0.0.0.0 0.0.0.0.
To use a default route obtained through DHCP, enter the following commands:
•
hostname(config)# interface phy_if
hostname(config-if)# dhcp client route track track_id
hostname(config-if)# dhcp client route distance admin_distance
hostname(config-if)# ip addresss dhcp setroute
hostname(config-if)# exit
You must use the setroute argument with the ip address dhcp command to obtain the default route
using DHCP. Make sure the administrative distance is greater than the administrative distance of the
tracked route.
• To use a default route obtained through PPPoE, enter the following commands:
hostname(config)# interface phy_if
hostname(config-if)# pppoe client route track track_id
hostname(config-if)# pppoe client route distance admin_distance
hostname(config-if)# ip addresss pppoe setroute
hostname(config-if)# exit
OL-10088-01
You must use the setroute argument with the ip address dhcp command to obtain the
default route using DHCP.
You must use the setroute argument with the ip address pppoe command to obtain the
default route using PPPoE.
Cisco Security Appliance Command Line Configuration Guide
Configuring Static and Default Routes
9-5