EIGRP filtering route - GNS3
R1 router eigrp 1 network 10.0.0.0 network 30.0.0.0 no auto-summary R2 router eigrp 1 network 30.30.12.2 0.0.0.0 network 172.16.0.0 no auto-summary R3 router eigrp 1 network 30.30.13.2 0.0.0.0 network 192.168.0.0 0.0.255.255 no auto-summary *we didn't advertise direct link between R2 and R3, just let it be that way for now make sure show ip route on R1, R2 and R3 can show all the network advertised by all the 3 routers. Distribute List + Access list we'll start with filtering certain route that EIGRP receive on particular interface let's stop 192.168.1.0 - 192.168.5.0 from being learned on Serial 0/1 on R1, R2 also should not see this since R2 learn it via R1 show current IP route R1#sh ip rou ... D 192.168.4.0/24 [90/2297856] via 30.30.13.2, 00:12:16, Serial0/1 D 192.168.5.0/24 [90/2297856] via 30.30.13.2, 00:12:16, Serial0/1 .. D 192.168.1.0/24 [90/2297856] via 30.30.13.2, ...