Enabling a backup VRRP device

This task is performed on a device that is to be designated as a backup VRRP device. For example, Router 2 in Basic VRRP topology is assigned as a backup device. Repeat this task for all devices that are to be designated as backup devices.

On the device designated as a backup VRRP device, and from privileged EXEC mode, enter global configuration mode.
```
device# configure terminal
```
Globally enable VRRP.
```
device(config)# protocol vrrp
```
Configure the Ethernet interface for Router 2.
```
device(config)# interface ethernet 1/5
```
Configure the IP address of interface:
```
device(config-if-eth-1/5)# ip address 192.168.4.3/24
```
Note
This router will become the backup router to Router 1.
Assign Router 2 to the same VRRP group as Router 1.
```
device(config-if-eth-1/5)# vrrp-group 1
```
To assign Group 1 a virtual IP address, use the same virtual IP address you used for Router 1.
```
device(config-vrrp-group-1)# virtual-ip 192.168.4.1
```

The following example configures a backup VRRP device.

device# configure
device(config)# protocol vrrp
device(config)# interface ethernet 1/5
device(config-if-eth-1/5)# ip address 192.168.4.3/24
device(config-if-eth-1/5)# vrrp-group 1
device(config-vrrp-group-1)# virtual-ip 192.168.4.1