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IGRP Configuration Scenario 1

Posted by Cyrus Bermejo on March 8, 2011 at 3:22 AM

Objective:  Configure the routers with IGRP (autonomous system 100) so that all devices can ping any other device.

Cable a network that is similar on the network below.


Lab Equipment Configuration

Router Name Ethernet 0/0 Address Serial 0/0 Address
Router 1 192.168.101.1 192.168.1.1
Router 2 192.168.100.1 192.168.1.2

The subnet mask for both interfaces on all routers is 255.255.255.0

Configure the interfaces of the router according to the chart.


Router 1

Router1#configure terminal
Router1(config)#interface Ethernet0/0 
Router1(config-if)#ip address 192.168.101.1 255.255.255.0
Router1(config-if)#no shutdown
Router1(config-if)#interface Serial0/0
Router1(config-if)#ip address 192.168.1.1 255.255.255.0
Router1(config-if)#clock rate 64000 
Router1(config-if)#no shutdown


Router 2

Router2#configure terminal
Router2(config)#interface Ethernet0/0
Router2(config-if)#ip address 192.168.100.1 255.255.255.0
Router2(config-if)#no shutdown
Router2(config-if)#interface Serial0/0
Router2(config-if)#ip address 192.168.1.2 255.255.255.0
Router2(config-if)#no shutdown


Enable IGRP routing (autonomous system 100)

Router1#configure terminal
Router1(config)#router igrp 100
Router1(config-router)#network 192.168.1.0
Router1(config-router)#network 192.168.101.0

Router2#configure terminal
Router2(config)#router igrp 100
Router2(config-router)#network 192.168.1.0
Router2(config-router)#network 192.168.100.0


Show the Router1 routing table


Show the Router2 routing table


Categories: Routing, IGRP