RE: OSPF basic configuration problem

From: OhioHondo (ohiohondo@columbus.rr.com)
Date: Wed May 14 2003 - 15:05:21 GMT-3


Using Area 1 on both routers will work fine.
You must not be creating an OSPF adjacency over the ethernets.

Do a "show ip ospf int" on both routers to make sure the ethernet interfaces
on both routers 'belongs' to OSPF. Make usre both ethernet interfaces
indicate that they are OSPF network type "BROADCAST". Make sure the "Hello"
timer and "Dead" timer are the same on both ethernet interfaces. You are not
using authentication or a stub area so these should not be the problem

Ping the ethernet interface of router A from router B and vica-versa to
make sure the ethernet interfaces are on the same vlan or physical
hub/switch. If you are using just an RJ45 for connection, make sure it is a
crossover cable. This ping should work even without OSPF being operational.

If these 2 are OK, Do a debug on the OSPF adjacency process. It usually
indicates what the peering problem is.

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Jason Graun
Sent: Wednesday, May 14, 2003 12:51 PM
To: 'keyser soze'; ccielab@groupstudy.com
Subject: RE: OSPF basic configuration problem

Area 0

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
keyser soze
Sent: Wednesday, May 14, 2003 2:29 AM
To: ccielab@groupstudy.com
Subject: OSPF basic configuration problem

Hi all.

I've a problem configuring OSPF between two routers via ethernet. The sh ip
route only shows directly connected networks. I'm pasting the running config

below. Any help would be appreciated.

---- R1 -----
hostname R1

interface Loopback0
ip address 131.108.4.1 255.255.255.128
!
interface Loopback1
ip address 131.108.4.129 255.255.255.128
!
interface Loopback2
ip address 131.108.5.1 255.255.255.224
!
interface Ethernet0
ip address 131.108.1.1 255.255.255.0
!
interface Serial0
no ip address
shutdown
no fair-queue
!
interface Serial1
no ip address
shutdown
!
interface BRI0
no ip address
shutdown
!
router ospf 1
log-adjacency-changes
network 131.108.1.0 0.0.0.255 area 1
network 131.108.4.0 0.0.0.127 area 1
network 131.108.4.128 0.0.0.127 area 1
network 131.108.5.0 0.0.0.31 area 1
!
ip classless
ip http server

---- R1 -----
hostname R2
!
!
!
!
!
!
ip subnet-zero
!
!
!
!
!
!
interface Loopback0
ip address 131.108.5.3 255.255.255.224
!
interface Loopback1
ip address 131.108.6.1 255.255.255.255
!
interface Loopback2
ip address 131.108.6.2 255.255.255.255
!
interface Ethernet0
ip address 131.108.1.2 255.255.255.0
!
interface Serial0
no ip address
shutdown
no fair-queue
!
interface Serial1
no ip address
shutdown
!

router ospf 2
log-adjacency-changes
network 131.108.1.0 0.0.0.255 area 1
network 131.108.5.32 0.0.0.31 area 1
network 131.108.6.1 0.0.0.0 area 1
network 131.108.6.2 0.0.0.0 area 1
!
ip classless
ip http server

Thanks.



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