Configuring VRRP for IPv6 1085
Enabling Users to Ping
Virtual IPv6 Addresses
You can configure whether the master switch responds to the received ICMPv6
echo requests, that is, whether the virtual IPv6 address of a standby group can be
pinged through.
Follow these steps to enable a user to successfully ping the virtual IPv6 addresses
of standby groups:
c
CAUTION: You should configure this function before creating a standby group.
Otherwise, you cannot ping the virtual IPv6 addresses of standby groups.
Configuring the
Association Between
Virtual IPv6 Address and
MAC Address
After the virtual IPv6 address of a standup group is associated with the MAC
address, the master switch takes the configured MAC address as the source MAC
address of the packets to be sent, so that the hosts in the internal network can
learn the association between the IPv6 address and the MAC address and thus
forward the packets to be forwarded to the other network segments to the master
switch properly.
There are two types of association between virtual IPv6 address and MAC address:
■ Virtual IPv6 address is associated with virtual router MAC address
By default, a MAC address is created for a standby group after the standby group
is created, and the virtual IPv6 address is associated with the virtual MAC address.
With such association adopted, the hosts in the internal network need not update
the association between IPv6 address and MAC address when the master switch
changes.
■ Virtual IPv6 address is associated with real MAC address of the interface
When an IP address owner exists in a standby group, if you associate the virtual
IPv6 address with the virtual MAC address, two MAC addresses are associated
with an IPv6 address. In this case, you can associate the virtual IPv6 address of the
standby group with the real MAC address, so that the packets from a host is
forwarded to the IP address owner according the real MAC address.
Follow these steps to configure the association between MAC address and virtual
IPv6 address:
“Creating Standby Group and Configuring Virtual IPv6 Address” on page 1086 Required
“Configuring Standby Group Priority, Preemption Mode and Interface Tracking”
on page 1087
Optional
“Configuring VRRP Packet Attributes” on page 1087 Optional
Task Remarks
To do… Use the command… Remarks
Enter system view system-view -
Enable a user to ping virtual
IPv6 address of the standby
group
vrrp ipv6 ping-enable Optional
Enabled by default
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