if I am not mistaken, the default network has to be "learned" via IGRP, and cannot be a connected interface. If I am reading your outputs correctly, your default network is a connected interface.
am I misreading which router is the source of the pings? Chuck ""John Neiberger"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I posted this to the ccie list as well. I'm hoping someone has run across > this before. > > I'll start with the original scenario that worked so I can show you where I > began before I show you what I'm trying to accomplish now. There are three > relevant routers here: > > A----(ospf)----B----(rip)-----C > > A originates a default route to B and I use default-information originate in > the RIP config to pass 0.0.0.0/0 to C. This works well. Then I took RIP > away and tried this with IGRP and ip default-network. > > This took some tweaking before I could get B to originate default route to > C with IGRP. Is it just me or did Cisco seem to make this very > user-unfriendly?? Unbelievable. This is *so* easy with other protocols. > Anyway... > > In the first scenario, B has a single gateway of last resort: 0.0.0.0/0 via > router A. Beautiful. In the second scenario I end up with two candidate > GOLRs but neither is picked and routing breaks! > > This makes *zero* sense to me. If ip classless is configured and still > have 0.0.0.0/0 in my routing table then B should route all packets with > unknown destinations to A, right?? Well, it's not working and I can > consistently recreate it. > > If I remove the ip default-network statement routing works but then C has no > default route. > > What could be wrong here? For grins, I'll paste in some command output to > show you what I mean. R4 is "Router B" in the above scenario. > > Gateway of last resort is 152.1.3.2 to network 0.0.0.0 > > 152.1.0.0/16 is variably subnetted, 2 subnets, 2 masks > O IA 152.1.1.0/25 [110/74] via 152.1.3.2, 05:19:53, Serial0 > C 152.1.3.0/30 is directly connected, Serial0 > 130.1.0.0/16 is variably subnetted, 9 subnets, 2 masks > I 130.1.3.0/24 [100/1188] via 130.1.4.2, 00:00:28, TokenRing0 > I 130.1.2.0/24 [100/1188] via 130.1.4.2, 00:00:28, TokenRing0 > I 130.1.1.0/24 [100/1188] via 130.1.4.2, 00:00:28, TokenRing0 > O 130.1.0.0/22 is a summary, 05:19:54, Null0 > I 130.1.7.0/24 [100/1188] via 130.1.4.2, 00:00:29, TokenRing0 > I 130.1.6.0/24 [100/1188] via 130.1.4.2, 00:00:29, TokenRing0 > I 130.1.5.0/24 [100/1188] via 130.1.4.2, 00:00:29, TokenRing0 > O 130.1.4.0/22 is a summary, 05:19:54, Null0 > C 130.1.4.0/24 is directly connected, TokenRing0 > C 30.0.0.0/8 is directly connected, Loopback1 > O*N2 0.0.0.0/0 [110/1] via 152.1.3.2, 05:19:56, Serial0 > R4#ping 20.1.1.1 > > Type escape sequence to abort. > Sending 5, 100-byte ICMP Echos to 20.1.1.1, timeout is 2 seconds: > !!!!! > Success rate is 100 percent (5/5), round-trip min/avg/max = 24/28/40 ms > R4# > > After I add ip default-network 30.0.0.0: > > Gateway of last resort is not set > > 152.1.0.0/16 is variably subnetted, 2 subnets, 2 masks > O IA 152.1.1.0/25 [110/74] via 152.1.3.2, 05:21:19, Serial0 > C 152.1.3.0/30 is directly connected, Serial0 > 130.1.0.0/16 is variably subnetted, 9 subnets, 2 masks > I 130.1.3.0/24 [100/1188] via 130.1.4.2, 00:00:32, TokenRing0 > I 130.1.2.0/24 [100/1188] via 130.1.4.2, 00:00:32, TokenRing0 > I 130.1.1.0/24 [100/1188] via 130.1.4.2, 00:00:32, TokenRing0 > O 130.1.0.0/22 is a summary, 05:21:19, Null0 > I 130.1.7.0/24 [100/1188] via 130.1.4.2, 00:00:34, TokenRing0 > I 130.1.6.0/24 [100/1188] via 130.1.4.2, 00:00:34, TokenRing0 > I 130.1.5.0/24 [100/1188] via 130.1.4.2, 00:00:34, TokenRing0 > O 130.1.4.0/22 is a summary, 05:21:20, Null0 > C 130.1.4.0/24 is directly connected, TokenRing0 > C* 30.0.0.0/8 is directly connected, Loopback1 > O*N2 0.0.0.0/0 [110/1] via 152.1.3.2, 05:21:22, Serial0 > R4# > R4#ping 20.1.1.1 > > Type escape sequence to abort. > Sending 5, 100-byte ICMP Echos to 20.1.1.1, timeout is 2 seconds: > ..... > Success rate is 0 percent (0/5) > R4# > > Any help would be appreciated. I'm about to swear off using IGRP and EIGRP > for the rest of my life just on principle. :-) > > Thanks, > John > > > > > > > _______________________________________________________ > Send a cool gift with your E-Card > http://www.bluemountain.com/giftcenter/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=25221&t=25216 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
