Enabling the alternate VRRPv2-style checksum in a VRRPv3 IPv4 session for compatibility with third-party network devices.
About this task
VRRPv3 uses the v3 checksum computation method by default for both IPv4 and IPv6 sessions on this device. Third-party devices may only have a VRRPv2-style checksum computation available for a VRRPv3 IPv4 session. The
use-v2-checksum command is entered in interface configuration mode.
Procedure
-
Enter the
configure terminal command to enter global configuration mode.
device# configure terminal
-
To enable VRRP globally enter the
protocol vrrp
command.
device(config)# protocol vrrp
-
Enter the
interface ve command with an associated VLAN number.
device(config)# interface ve 2018
-
To assign an IPv4 VRRPv3 group to the device use the
vrrp-group command with a group number and version 3.
device(config-ve-2018)# vrrp-group 10 version 3
-
To enable v2 checksum computation method in an IPv4 VRRPv3 session, use the
use-v2-checksum command in the VRRP group configuration mode.
device(config-vrrp-group-10)# use-v2-checksum
Example
The following example shows the v2 checksum computation method enabled for an VRRPv3 IPv4 session on a device.
device# configure terminal
device(config)# protocol vrrp
device(config)# interface ve 2018
device(config-ve-2018)# vrrp-group 10 version 3
device(config-vrrp-group-10)# use-v2-checksum
