* - candidate default, U - per-user static route, o - ODRġ72.16.0.0/16 is variably subnetted, 5 subnets, 3 masksĬ 172.16.1.0/24 is directly connected, GigabitEthernet0/0 I - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2Į1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP Let’s start by looking at the Routing Table on R1: R1#sh ip routeĬodes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGPĭ - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area There are a whole bunch of verify commands when it comes to EIGRP. Let’s first take a quick look at the IP addressing on the three routers: The point of configuring passive-interfaces is to prevent the LAN interfaces from advertising EIGRP updates.Īs part of our EIGRP configuration, we’ll disable auto-summarization and also make the LAN interfaces passive. We’ll also configure passive-interfaces on the three LAN segments attached to R1, R2 and R3. The various interfaces on Routers have already been configured and we’ll verify them with the show ip interface brief command. This EIGRP lab is part of Cisco Netacad CCNA curriculum.
Packet Tracer is easier to set up compared to GNS3 and available as a free download from Cisco.Īnother plus with Packet Tracer is that it also runs on different operating systems including Windows, Mac and Linux. This time the lab is being done on Packet Tracer instead of GNS3. We’ll finish off with a ping test to verify end-to-end connectivity between the PCs. In this lab, we’ll do a basic configuration of EIGRP and then run a bunch of verify commands.
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