OSPF Neighbor Problem

From: Charles T. Alexander (charles.t.alexander@verizon.net)
Date: Mon May 03 2004 - 11:28:41 GMT-3


I am having problems getting an OSPF neighbor between r6 to cat 3550 and
r9 to cat 3550.

r6----
| |
| cat3500XL --- cat 3550
| |
r9----

c1#sho ip os neigh

Neighbor ID Pri State Dead Time Address
Interface
138.10.4.4 1 DOWN/DROTHER - 138.10.40.4 Vlan40

138.10.6.6 1 EXSTART/BDR 00:00:39 138.10.96.6 Vlan96

138.10.9.9 1 DOWN/DROTHER 00:00:33 138.10.96.9 Vlan96

Here are extracts of the configs
=========================================
r6

interface Loopback0
 ip address 138.10.6.6 255.255.255.0
 ip router isis
!
interface Loopback1
 ip address 206.1.1.1 255.255.255.224
 ip ospf network point-to-point
!
interface Loopback2
 ip address 206.1.1.33 255.255.255.224
 ip ospf network point-to-point
!
interface Ethernet0/0
 ip address 138.10.96.6 255.255.255.224
!
interface Serial1/1
 bandwidth 64
 ip address 138.10.69.6 255.255.255.240
 serial restart-delay 0
!
router ospf 1
 router-id 138.10.6.6
 log-adjacency-changes
 network 138.10.69.0 0.0.0.15 area 69
 network 138.10.96.0 0.0.0.31 area 0
 network 206.1.1.0 0.0.0.31 area 60
 network 206.1.1.32 0.0.0.31 area 60
======================================
r9

interface Loopback0
 ip address 138.10.9.9 255.255.255.0
 ip ospf network point-to-point
!
interface Loopback1
 ip address 209.1.1.1 255.255.255.224
 ip ospf network point-to-point
!
interface Loopback2
 ip address 209.1.1.33 255.255.255.224
 ip ospf network point-to-point
!
interface Ethernet0
 ip address 138.10.96.9 255.255.255.224
!
interface Serial0
 bandwidth 64
 ip address 138.10.69.9 255.255.255.240
 no fair-queue
 clockrate 64000
!
router ospf 1
 router-id 138.10.9.9
 log-adjacency-changes
 network 138.10.9.0 0.0.0.255 area 0
 network 138.10.69.0 0.0.0.15 area 69
 network 138.10.96.0 0.0.0.31 area 0
 network 209.1.1.0 0.0.0.31 area 90
 network 209.1.1.32 0.0.0.31 area 90
=========================================
cat 3550

interface Loopback0
 ip address 138.10.10.10 255.255.255.0
!
interface Vlan40
 description vlan B
 ip address 138.10.40.10 255.255.255.0
!
interface Vlan96
 description vlan A
 ip address 138.10.96.10 255.255.255.224
!
router ospf 1
 router-id 138.10.10.10
 log-adjacency-changes
 network 138.10.40.0 0.0.0.255 area 0
 network 138.10.96.0 0.0.0.31 area 0

========================================
cat 3500XL

below are VLans

c2#show vlan
VLAN Name Status Ports
---- -------------------------------- ---------
-------------------------------
1 default active Fa0/1, Fa0/2, Fa0/5,
Fa0/8,
                                                Fa0/10, Gi0/1, Gi0/2
14 VLAN0014 active
30 VLAN-C active Fa0/3
40 VLAN-B active Fa0/4
70 VLAN-D active Fa0/7
96 VLAN-A active Fa0/6, Fa0/9
125 VLAN-E active
192 VLAN-F active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

!



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