ip vrrp-extended auth-type

Configures the type of authentication used on a Virtual Router Redundancy Protocol Extended (VRRP-E) interface.

Syntax

ip vrrp-extended auth-type md5-auth auth-text

no ip vrrp-extended auth-type md5-auth

Command Default

No authentication is configured for a VRRP-E interface.

Parameters

auth-type: Authentication type used to verify the password.
md5-auth auth-text: Configures MD5 authentication on the interface. The maximum length of the text string is 64 characters.

Modes

Virtual Ethernet (VE) interface configuration mode

Usage Guidelines

This configuration is for VE interfaces only.

If the md5-auth option is configured, syslog and SNMP traps are generated if a packet is being dropped due to MD5 authentication failure. Using MD5 authentication implies that the software does not need to run checksum verification on the receiving device and can rely on the authentication code (message digest 5 algorithm) to verify the integrity of the VRRP-E message header.

The no form of this command removes the VRRP-E authentication from the interface.

Examples

The following example configures MD5 authentication on VE interface 20.

device(config)# protocol vrrp-extended 
device(config)# interface ve 20 
device(config-if-Ve-20)# ip vrrp-extended auth-type md5-auth lyk28d3j