Reference Guide

Virtual Router Redundancy Protocol (VRRP) | 1059
VRRP for IPv6 Configuration
The example in Configure VRRP for IPv4 shows an example of a VRRP for IPv6 configuration in which
the IPv6 VRRP group consists of two routers. This example does not contain comprehensive directions
and is intended to provide guidance for only a typical VRRP configuration. You can copy and paste from
the example to your CLI. Be sure you make the necessary changes to support your own IP addresses,
interfaces, names, etc. Figure 60-2 shows the VRRP for IPv6 topology with the CLI configuration in the
example in Configure VRRP for IPv4.
Figure 60-3. VRRP for IPv6 Topology
Master State: Although both R2 and
R3 have the same priority (100),
R2 is the master in the VRRP group
because the R2 interface has a
higher IPv6 address.
Backup State: R3 is the backup in
the VRRP group because the R3
interface has a lower IPv6 address.
R2#show vrrp
------------------
GigabitEthernet 0/0, IPv6 VRID: 10, Net: fe80::201:e8ff:fe6a:c59f
VRF: 0 default-vrf
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
R2#
Internet
1::10 fe80::10
fe80::201:e8ff:fe6a:c59f
GigE 1/0
GigE 0/0
VRID 10
R2
R3
R3#show vrrp
------------------
GigabitEthernet 1/0, IPv6 VRID: 10, Net: fe80::201:e8ff:fe6b:1845
VRF: 0 default-vrf
State: BackupPriority: 100, Master: fe80::201:e8ff:fe6a:c59f
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
R2#
Virtual MAC is automatically
assigned and is the same on
both Routers
Virtual MAC is automatically
assigned and is the same on
both Routers
fe80::201:e8ff:fe6b:1845
You must configure
both a virtual IPv6 address and a
virtual link local (fe80) address for
an IPv6 VRRP group
You must configure
both a virtual IPv6 address and a
virtual link local (fe80) address for
an IPv6 VRRP group