Configuring simple text authentication on VRRP interfaces
A simple text password can be used for interface authentication in a network. VRRP uses the authentication type associated with the interfaces on which you define the virtual router ID (VRID).
A VRRP session must be configured and running.
If you configure your device interfaces to use a simple password to authenticate traffic, VRRP interfaces can be configured with the same simple password, and VRRP packets that do not contain the password are dropped. If your interfaces do not use authentication, neither does VRRP. Repeat this task on all interfaces on all devices that support the VRID.
NOTE
This task supports VRRPv2 and VRRP-Ev2 only. VRRPv3 and VRRP-Ev3 are not supported.