I used to have RIP (w/ default routes entered) and everything worked great. I have disabled RIP and I am now trying IGRP and running into some problems.
Here is my network schematic: http://mvpbaseball.cc/post.jpg
--I am running RIP on my cable router (192.168.1.1). Built in by default, I cant turn it off
--I am running IGRP on router 2501a and 2501b.
--I have a default route entered in 2501 a of 0.0.0.0 0.0.0.0 192.168.1.1 . Without this entered, 2501a could not ping WAN
--I have a default route entered in 2501b of 0.0.0.0 0.0.0.0 192.168.0.5.
The problem is with router 2501b. I cannot ping the cable router from router 2501b. Any ideas?
Here is the sh ip ro of 2501b:
RouterB#sh ip ro
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is 192.168.0.5 to network 0.0.0.0
192.168.0.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.0.0/24 is directly connected, Serial0
C 192.168.0.5/32 is directly connected, Serial0
I 192.168.1.0/24 [100/8576] via 192.168.0.5, 00:00:08, Serial0
C 192.168.2.0/24 is directly connected, Ethernet0
S* 0.0.0.0/0 [1/0] via 192.168.0.5