Chapter 9: VRRP Configuration Guide

Setting an Authentication Key

By default, no authentication of VRRP packets is performed on the SSR. You can specify a clear-text password to be used to authenticate VRRP exchanges. To enable authentication, enter the following command in Configure mode

To authenticate VRRP exchanges on virtual router 1 on interface int1 with a password of ‘yago’:

ssr(config)# ip-redundancy set vrrp 1 interface int1 auth-type text auth-key yago

Note: The SSR does not currently support the IP Authentication Header method of authentication.

Monitoring VRRP

The SSR provides two commands for monitoring a VRRP configuration: ip-redundancy trace, which displays messages when VRRP events occur, and ip-redundancy show, which reports statistics about virtual routers.

ip-redundancy trace

The ip-redundancy trace command is used for troubleshooting purposes. This command causes messages to be displayed when certain VRRP events occur on the SSR. To trace VRRP events, enter the following commands in Enable mode:

Display a message when any

ip-redundancy trace vrrp events enabled

VRRP event occurs. (Disabled

 

by default.)

 

 

 

Display a message when a

ip-redundancy trace vrrp state-transitions

VRRP router changes from one

enabled

state to another; for example

 

Backup to Master. (Enabled by

 

default.)

 

 

 

Display a message when a

ip-redundancy trace vrrp packet-errors

VRRP packet error is detected.

enabled

(Enabled by default.)

 

 

 

Enable all VRRP tracing.

ip-redundancy trace vrrp all enabled

 

 

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Cabletron Systems 9032578-05 manual Monitoring Vrrp, Ip-redundancy trace, Setting an Authentication Key