Configuring VRRP 1053
To configure Router A:
1
Enable routing for the switch.
console#config
console(config)#ip routing
2
Create and configure the VLAN routing interface to use as the default
gateway for network clients. This example assumes all other routing
interfaces, such as the interface to the external network, have been
configured.
console(config)#interface vlan 10
console(config-if-vlan10)#ip address 192.168.10.1 255.255.255.0
console(config-if-vlan10)#exit
3
Enable VRRP for the switch.
console(config)#ip vrrp
4
Assign a virtual router ID to the VLAN routing interface for the VRRP
group.
console(config)#interface vlan 10
console(config-if-vlan10)#vrrp 10
5
Specify the IP address that the virtual router function will use.
console(config-if-vlan10)#vrrp 10 ip 192.168.10.15
6
Configure the router priority.
console(config-if-vlan10)#vrrp 10 priority 200
7
Enable preempt mode so that the router can regain its position as VRRP
master if its priority is greater than the priority of the backup router.
console(config-if-vlan10)#vrrp 10 preempt
8
Enable the VRRP groups on the interface.
console(config-if-vlan10)#ip vrrp 10 mode
console(config-if-vlan10)#exit
9
Track the routing interface VLAN 25 on VRID 10 so that if it goes down,
the priority of VRID 10 on Router A is decreased by 10, which is the
default decrement priority value.
console(config-if-vlan10)#vrrp 10 track interface vlan 25
10
Track the route to the 192.168.200.0 network. If it becomes unavailable,
the priority of VRID 10 on Router A is decreased by 10, which is the
default decrement priority value.
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