Configuring FHRP - IRDP

The less known, the unpopular, the quiet and the secretive protocol of First Hop Redundancy Protocol (FHRP) is ... dun dun dun .. IRDP (ICMP Router Discovery Protocol). In this blogtorial we will configure IRDP which uses 'ICMP' to send the default gateway information to hosts. This will be a short and simple blogtorial so consider the topology below and let's get started.

Objectives:

• Configure R1 and R2 to with IRDP
• R1 should be the primary default gateway and R2 should be the backup default gateway
• R2 should take over when R1 goes down

Relevant configurations are posted below.