Enabling Accept Mode on a Backup VRRP Device

Enabling accept mode allows a backup VRRP device to respond to ping, traceroute, and Telnet packets if the backup device becomes the master VRRP device.

This task is performed on any device that is designated as a backup VRRP device, and the functionality is activated if the backup device becomes a master VRRP device. Repeat this task for all devices that are to be designated as backup devices.

Note: The accept mode functionality does not support SSH packets.
  1. On the device designated as a backup VRRP device, from privileged EXEC mode, enter global configuration mode by issuing the configure terminal command. 
    device# configure terminal
  2. Globally enable VRRP. 
    device(config)# router vrrp
  3. Configure the Ethernet interface link. 
    device(config)# interface ethernet 1/1/5
  4. Configure the IP address of the interface. All devices configured for the same virtual router ID (VRID) must be on the same subnet. 
    device(conf-if-e1000-1/1/5)# ip address 10.53.5.3/24
  5. Assign this backup device to VRID 1, the same VRID as the VRRP owner device. 
    device(conf-if-e1000-1/1/5)# ip vrrp vrid 1
    Note: You can assign a VRID number in the range of 1 through 255.
  6. Designate this router as a backup VRRP device. 
    device(conf-if-e1000-1/1/5-vrid-1)# backup priority 110
    While configuring a backup device, you can set a priority that is used when a master VRRP device goes offline. The backup device with the highest priority will assume the role of master device.
  7. Enable accept mode for this device. 
    device(conf-if-e1000-1/1/5-vrid-1)# accept-mode
  8. Exit configuration mode and return to privileged EXEC mode. 
    device(conf-if-e1000-1/1/5-vrid-1)# end
  9. Verify that accept mode is enabled. 
    device# show ip vrrp vrid 1
 VRID 1
Interface ethernet 1/1/5
  state master
  administrative-status enabled
  version v3
  mode non-owner(backup)
  priority 110
  current priority 110
  backup-hello-interval 60 sec
  hello-interval 1000 msec
  dead-interval 0 msec
  current dead-interval 3500 msec
  preempt-mode true
  accept-mode enabled
.
.
.

The following example enables accept mode for a backup VRRP device. 

device# configure terminal
device(config)# router vrrp
device(config)# interface ethernet 1/1/5
device(conf-if-e1000-1/1/5)# ip address 10.53.5.3/24
device(conf-if-e1000-1/1/5)# ip vrrp vrid 1
device(conf-if-e1000-1/1/5-vrid-1)# backup priority 110
device(conf-if-e1000-1/1/5-vrid-1)# accept-mode
Parent topic: Accept mode for backup VRRP devices