Configuring a basic EIGRP network:
Network Design (I’m using sub-interfaces on my equipment, as I have other traffic on other sub-interfaces):
Step 1) Enable EIGRP on every router:
Router 1:
Router1#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router1(config)#router eigrp 1
Router1(config-router)#network 192.168.60.0 0.0.0.255
Router1(config-router)#network 172.16.1.1 0.0.0.255
Router 2:
Router2#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router2(config)#router eigrp 1
Router2(config-router)#network 192.168.60.0 0.0.0.255
Router2(config-router)#network 172.17.1.0 0.0.0.255
Router 3:
Router3#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router3(config)#router eigrp 1
Router3(config-router)#network 192.168.60.0 0.0.0.255
Router3(config-router)#network 172.18.1.0 0.0.0.255
Step 2) Verify that you have EIGRP Neighbors:
Router1#show ip eigrp interfaces (shows which interfaces are enabled for eigrp)
Router1#show ip protocols (shows the details of the network configuration commands)
Router1#show ip eigrp neighbors (shows the eigrp neighbors, interfaces, and uptime of those neighborships)
Router1#show ip eigrp topology (shows the eigrp topology table and all the metric calculations for all routes which are being exchanged between neighbors)
Router1#show ip route eigrp (shows an output of the global routing table and all the eigrp routes used for routing between neighbors)
Step 3) Enjoy the simple setup.