Install Guide

NOTE: In a VRRP or VRRPv3 group, if two routers come up with the same priority and another router already has MASTER
status, the router with master status continues to be master even if one of two routers has a higher IP or IPv6 address.
Router 2
R2(conf)#interface twentyFiveGigE 1/1
R2(conf-if-tf-1/1)#no ip address
R2(conf-if-tf-1/1)#ipv6 address 1::1/64
R2(conf-if-tf-1/1)#vrrp-group 10
NOTE: You must configure a virtual link local (fe80) address for each VRRPv3 group created for an interface. The VRRPv3
group becomes active as soon as you configure the link local address. Afterwards, you can configure the group’s virtual
IPv6 address.
R2(conf-if-tf-1/1-vrid-10)#virtual-address fe80::10
NOTE: The virtual IPv6 address you configure should be the same as the IPv6 subnet to which the interface belongs.
R2(conf-if-tf-1/1-vrid-10)#virtual-address 1::10
R2(conf-if-tf-1/1-vrid-10)#no shutdown
R2(conf-if-tf-1/1)#show config
interface twentyFiveGigE 1/1
ipv6 address 1::1/64
vrrp-group 10
priority 100
virtual-address fe80::10
virtual-address 1::10
no shutdown
R2(conf-if-tf-1/1)#end
R2#show vrrp
------------------
twentyFiveGigE 1/1, IPv6 VRID: 10, Version: 3, Net:fe80::201:e8ff:fe6a:c59f
VRF: 0 default
State: Master, Priority: 100, Master: fe80::201:e8ff:fe6a:c59f (local)
Hold Down: 0 centisec, Preempt: TRUE, AdvInt: 100 centisec
Accept Mode: FALSE, Master AdvInt: 100 centisec
Adv rcvd: 0, Bad pkts rcvd: 0, Adv sent: 135
Virtual MAC address:
00:00:5e:00:02:0a
Virtual IP address:
1::10 fe80::10
NOTE:
Although R2 and R3 have the same default priority (100), R2 is elected master in the VRRPv3 group because the
Twentyfivegigabitethernet 1/1 interface has a higher IPv6 address than the Twentyfivegigabitethernet 1/2 interface on R3.
Router 3
R3(conf)#interface twentyFiveGigE 1/2
R3(conf-if-tf-1/2)#no ipv6 address
R3(conf-if-tf-1/2)#ipv6 address 1::2/64
R3(conf-if-tf-1/2)#vrrp-group 10
R2(conf-if-tf-1/2-vrid-10)#virtual-address fe80::10
R2(conf-if-tf-1/2-vrid-10)#virtual-address 1::10
R3(conf-if-tf-1/2-vrid-10)#no shutdown
R3(conf-if-tf-1/2)#show config
interface twentyFiveGigE 1/2
ipv6 address 1::2/64
vrrp-group 10
priority 100
virtual-address fe80::10
virtual-address 1::10
no shutdown
R3(conf-if-tf-1/2)#end
R3#show vrrp
------------------
twentyFiveGigE 1/2, IPv6 VRID: 10, Version: 3, Net: fe80::201:e8ff:fe6b:1845
VRF: 0 default
1024
Virtual Router Redundancy Protocol (VRRP)