RE: OSPF issue

From: Scott Vermillion (scott_ccie_list@it-ag.com)
Date: Thu Dec 20 2007 - 17:59:41 ART


Try a 'sh ip ospf data router' and see what you see (and recall that 'sh ip
ospf data' without any additional keywords only displays your LSA header
info vs. the full contents of the LSAs)...

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Athaide, Dwayne
Sent: Thursday, December 20, 2007 10:08 AM
To: groupstudy
Subject: OSPF issue

I am having an issue with OSPF that I don't quite follow. I have R1 and
R2 connected via Ethernet and R2 is the ABR for Area 1. R1 is running
only Area1 and R2 - Area1 and Area 0. I have loopbacks in Area 1 on R2
and see them in the routing table and database however I don't see the
Area 1 loopbacks in the database of R1 but see them in the routing
table.

(A1)R1----R2(A1,0)

R2

interface Loopback1

 ip address 172.16.0.1 255.255.255.0

 ip ospf 1 area 1

!

interface Loopback2

 ip address 172.16.1.1 255.255.255.0

 ip ospf 1 area 1

!

interface Loopback3

 ip address 172.16.2.1 255.255.255.0

 ip ospf 1 area 1

!

interface Loopback4

 ip address 172.16.3.1 255.255.255.0

 ip ospf 1 area 1

router ospf 1

 router-id 170.1.2.2

 log-adjacency-changes

 auto-cost reference-bandwidth 1000

sho ip ospf database

            OSPF Router with ID (170.1.2.2) (Process ID 1)

                Router Link States (Area 0)

Link ID ADV Router Age Seq# Checksum Link
count

170.1.2.2 170.1.2.2 480 0x80000004 0x008888 5

170.1.4.4 170.1.4.4 482 0x80000013 0x00B65B 3

170.1.5.5 170.1.5.5 482 0x80000012 0x0064A2 3

                Summary Net Link States (Area 0)

Link ID ADV Router Age Seq# Checksum

170.1.1.1 170.1.2.2 452 0x80000001 0x000ACA

170.1.150.0 170.1.2.2 477 0x80000006 0x0092A9

172.16.0.1 170.1.2.2 477 0x80000006 0x00D7F1

172.16.1.1 170.1.2.2 477 0x80000004 0x00D0F9

172.16.2.1 170.1.2.2 477 0x80000006 0x00C106

172.16.3.1 170.1.2.2 477 0x80000006 0x00B610

222.222.222.0 170.1.2.2 477 0x80000005 0x0012D9

                Router Link States (Area 1)

Link ID ADV Router Age Seq# Checksum Link
count

170.1.1.1 170.1.1.1 455 0x80000008 0x00FFBA 3

170.1.2.2 170.1.2.2 479 0x80000003 0x00A8E2 7

                Summary Net Link States (Area 1)

Link ID ADV Router Age Seq# Checksum

170.1.2.2 170.1.2.2 478 0x80000006 0x008651

170.1.4.4 170.1.2.2 473 0x80000001 0x00676A

170.1.5.5 170.1.2.2 473 0x80000001 0x00527D

172.1.100.0 170.1.2.2 478 0x80000006 0x002B47

172.1.100.4 170.1.2.2 478 0x80000006 0x00036B

                Summary ASB Link States (Area 1)

Link ID ADV Router Age Seq# Checksum

170.1.4.4 170.1.2.2 473 0x80000001 0x004F82

                Type-5 AS External Link States

Link ID ADV Router Age Seq# Checksum Tag

192.168.10.0 170.1.4.4 352 0x80000003 0x0087EF 0

R1

Sho ip ospf database

R1#sho ip ospf database

            OSPF Router with ID (170.1.1.1) (Process ID 1)

                Router Link States (Area 1)

Link ID ADV Router Age Seq# Checksum Link
count

170.1.1.1 170.1.1.1 479 0x80000008 0x00FFBA 3

170.1.2.2 170.1.2.2 503 0x80000003 0x00A8E2 7

                Summary Net Link States (Area 1)

Link ID ADV Router Age Seq# Checksum

170.1.2.2 170.1.2.2 502 0x80000006 0x008651

170.1.4.4 170.1.2.2 497 0x80000001 0x00676A

170.1.5.5 170.1.2.2 497 0x80000001 0x00527D

172.1.100.0 170.1.2.2 502 0x80000006 0x002B47

172.1.100.4 170.1.2.2 502 0x80000006 0x00036B

                Summary ASB Link States (Area 1)

Link ID ADV Router Age Seq# Checksum

170.1.4.4 170.1.2.2 497 0x80000001 0x004F82

                Type-5 AS External Link States

Link ID ADV Router Age Seq# Checksum Tag

192.168.10.0 170.1.4.4 377 0x80000003 0x0087EF 0

Sho ip route

Gateway of last resort is not set

     170.1.0.0/16 is variably subnetted, 5 subnets, 2 masks

C 170.1.150.0/24 is directly connected, FastEthernet0/0

O IA 170.1.5.5/32 [110/17868] via 170.1.150.2, 00:08:44,
FastEthernet0/0

O IA 170.1.4.4/32 [110/17868] via 170.1.150.2, 00:08:44,
FastEthernet0/0

O IA 170.1.2.2/32 [110/11] via 170.1.150.2, 00:08:44, FastEthernet0/0

C 170.1.1.1/32 is directly connected, Loopback0

O 222.222.222.0/24 [110/11] via 170.1.150.2, 00:08:44,
FastEthernet0/0

O E2 192.168.10.0/24 [110/20] via 170.1.150.2, 00:08:45, FastEthernet0/0

     172.1.0.0/30 is subnetted, 2 subnets

O IA 172.1.100.0 [110/17867] via 170.1.150.2, 00:08:45,
FastEthernet0/0

O IA 172.1.100.4 [110/17867] via 170.1.150.2, 00:08:45,
FastEthernet0/0

     172.16.0.0/32 is subnetted, 4 subnets

O 172.16.1.1 [110/11] via 170.1.150.2, 00:08:45, FastEthernet0/0

O 172.16.0.1 [110/11] via 170.1.150.2, 00:08:46, FastEthernet0/0

O 172.16.3.1 [110/11] via 170.1.150.2, 00:08:46, FastEthernet0/0

O 172.16.2.1 [110/11] via 170.1.150.2, 00:08:46, FastEthernet0/0

     150.50.0.0/24 is subnetted, 1 subnets

C 150.50.200.0 is directly connected, FastEthernet0/1



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