R3102-R3103-HP 6600/HSR6600 Routers High Availability Configuration Guide

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Configuring VRRP for IPv6
VRRP for IPv6 configuration task list
Task
Remarks
Configuring a VRRP working mode
Optional.
Specifying the type of MAC addresses mapped to virtual IPv6
addresses
Optional.
This configuration does not apply to VRRP
load balancing mode.
Creating a VRRP group and configuring a virtual IPv6 address
Required.
Configuring router priority, preemptive mode and tracking
function
Optional.
Configuring VF tracking
Optional.
The VF tracking function applies to only
VRRP load balancing mode.
Configuring VRRP packet attributes
Optional.
Specifying the type of MAC addresses mapped to virtual IPv6
addresses
After you specify the type of MAC addresses mapped to the virtual IPv6 address of VRRP groups and
create a VRRP group, the master in the VRRP group uses the specified type of MAC address as the
source MAC address for sending packets and uses the specified type of MAC address to answer ND
requests from hosts so that the hosts in the internal network can learn the mapping between the IPv6
address and the MAC address.
The following types of MAC addresses are available to be mapped to the virtual IPv6 address of a
VRRP group:
 Virtual MAC address—By default, a virtual MAC address is automatically created for a VRRP
group when the VRRP group is created, and the virtual IPv6 address of the VRRP group is
mapped to the virtual MAC address. When such a mapping is adopted, the hosts in the internal
network do not need to update the mapping between the IPv6 address and the MAC address
when the master changes.
 Real MAC address of an interface—In case that an IP address owner exists in a VRRP group, if the
virtual IPv6 address is mapped to the virtual MAC address, two MAC addresses are mapped to
one IPv6 address. To avoid such as problem, map the virtual IPv6 address of the VRRP group to
the real MAC address of an interface to forward the packets from a host to the IP address
owner.
When VRRP operates in load balancing mode, a virtual IPv6 address is always mapped to a virtual
MAC address regardless of which type of MAC addresses are specified to be mapped to virtual IPv6
addresses.