ip irdp

Enables IPv4 ICMP Router Discovery Protocol.

Syntax

ip irdp

no ip irdp

Command Default

By default, the ICMP Router Discovery Protocol is not enabled.

Modes

Interface configuration mode

Usage Guidelines

Routers use the IPv4 ICMP Router Discovery Protocol to announce their presence to other systems in the subnet. Hosts use the protocol to dynamically discover IPv4 routers in the same subnet.

The protocol is disabled by default on Layer 3 interfaces. Use the ip irdp command to enable the protocol at the interface level.

Examples

This example enables the IPv4 ICMP Router Discovery Protocol on Ethernet interface 0/2.

device# configure terminal
device(config)# interface ethernet 0/2
device(config-if-eth-0/2)# ip irdp