Re: Discontiguous OSPF Area 0 networks not showing up

From: Alexei Monastyrnyi (alexeim@orcsoftware.com)
Date: Thu Apr 06 2006 - 10:30:04 GMT-3


I see authentication is in place... try to debug ip ospf adj to see if
there is any auth mismatch going on...

A.

on 06/04/2006 13:25 Michael wrote:
> I have a discontiguous Area 0 connected by a virtual link and routes are not
> showing up in Router 4 (CR4). Any ideas what is wrong?
>
>
>
>
>
> Architecture:
>
>
>
>
>
> Router 4 (Main Area 0) <-> Area 1 (normal) <-> Router 3 (Discontiguous
> Area 0)
>
> Lo0 - 4.4.4.4
> Lo0 - 3.3.3.3
>
> < - virtual-link - >
>
>
> Subnet 66.163.1.0/24 (not showing in ip route table on Router 4)
>
>
>
> Output:
>
>
>
> CR4-2501#show ip ospf virtual-links
>
> Virtual Link OSPF_VL0 to router 3.3.3.3 is up
>
> Run as demand circuit
>
> DoNotAge LSA allowed.
>
> Transit area 1, via interface Ethernet0, Cost of using 10
>
> Transmit Delay is 1 sec, State POINT_TO_POINT,
>
> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
>
> Hello due in 00:00:01
>
> Message digest authentication enabled
>
> Youngest key id is 1
>
> CR4-2501#show ip route
>
> 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 not set
>
>
>
> 2.0.0.0/32 is subnetted, 1 subnets
>
> O E2 2.2.2.2 [110/2000] via 66.162.1.5, 00:58:05, Serial0
>
> 4.0.0.0/32 is subnetted, 1 subnets
>
> C 4.4.4.4 is directly connected, Loopback0
>
> 5.0.0.0/32 is subnetted, 1 subnets
>
> O 5.5.5.5 [110/65] via 66.162.1.5, 00:58:05, Serial0
>
> 66.0.0.0/8 is variably subnetted, 5 subnets, 3 masks
> (((NO 66.163.1.0 /24 NETWORK)))
>
> O E2 66.160.1.2/32 [110/2000] via 66.162.1.5, 00:58:05, Serial0
>
> C 66.162.1.0/24 is directly connected, Serial0
>
> O E2 66.160.1.0/24 [110/2000] via 66.162.1.5, 00:58:06, Serial0
>
> O 66.164.0.0/16 is a summary, 01:51:44, Null0
>
> C 66.164.1.0/24 is directly connected, Ethernet0
>
> 6.0.0.0/32 is subnetted, 1 subnets
>
> O 6.6.6.6 [110/65] via 66.162.1.6, 00:58:07, Serial0
>
> 25.0.0.0/24 is subnetted, 1 subnets
>
> O E2 25.25.25.0 [110/2000] via 66.162.1.5, 00:58:07, Serial0
>
> 12.0.0.0/32 is subnetted, 1 subnets
>
> O 12.12.12.12 [110/11] via 66.164.1.5, 01:51:45, Ethernet0
>
> O E2 192.168.1.0/24 [110/2000] via 66.162.1.5, 00:58:07, Serial0
>
> CR4-2501#
>
>
>
>
>
>
>
> CR3-2611#show ip ospf virtual-links
>
> Virtual Link OSPF_VL0 to router 4.4.4.4 is up
>
> Run as demand circuit
>
> DoNotAge LSA allowed.
>
> Transit area 1, via interface Ethernet0/0, Cost of using 10
>
> Transmit Delay is 1 sec, State POINT_TO_POINT,
>
> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
>
> Hello due in 00:00:06
>
> Message digest authentication enabled
>
> Youngest key id is 1
>
> CR3-2611#show ip route
>
> 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 not set
>
>
>
> 3.0.0.0/32 is subnetted, 1 subnets
>
> C 3.3.3.3 is directly connected, Loopback0
>
> 201.1.1.0/29 is subnetted, 1 subnets
>
> C 201.1.1.0 is directly connected, Ethernet0/0.501
>
> 66.0.0.0/24 is subnetted, 2 subnets
>
> C 66.163.1.0 is directly connected, Serial1/3
>
> C 66.164.1.0 is directly connected, Ethernet0/0
>
> 7.0.0.0/32 is subnetted, 1 subnets
>
> O 7.7.7.7 [110/782] via 66.163.1.7, 1d00h, Serial1/3
>
> 12.0.0.0/32 is subnetted, 1 subnets
>
> O 12.12.12.12 [110/11] via 66.164.1.5, 01:55:47, Ethernet0/0
>
> CR3-2611#
>
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