OSPF Virtual-Link & GRE

From: Loi, Choon Ho (ChoonHo.Loi@getronics.com)
Date: Tue Aug 23 2005 - 06:07:46 GMT-3

Hi,

I lab-up the following Scenario for OSPF:

Area 0 | R2 -----Area 1------- R5 ------Area 2--------R3--------| Area 3

Everything works fine... but, my ping drop intermittently when I try to
ping from Area3 to Area0.
Anything wrong with my configuration?

Thanks.

Following is my configuration:

hostname r2
!

!
interface Loopback0
 ip address 192.2.2.2 255.255.255.0
!
interface Tunnel0
 ip address 23.23.23.2 255.255.255.248
 tunnel source Serial1/1
 tunnel destination 172.16.35.1
!
interface Serial1/1
 ip address 172.16.25.1 255.255.255.252
 encapsulation ppp

router ospf 1
 router-id 2.0.0.2
 log-adjacency-changes
 area 1 virtual-link 5.0.0.5
 network 23.23.23.0 0.0.0.7 area 3
 network 172.16.25.0 0.0.0.3 area 1
 network 192.2.2.0 0.0.0.255 area 0
------------------------------------------------------------------------ 

---
!
hostname r5

interface Loopback0
 ip address 100.100.100.100 255.255.255.0
!
interface Loopback1
 ip address 5.0.0.5 255.255.255.255

interface Serial0/0
 ip address 172.16.25.2 255.255.255.252
 encapsulation ppp
 no fair-queue
!
interface Serial0/1
 ip address 172.16.35.2 255.255.255.252
 encapsulation ppp
!
router ospf 1
 router-id 5.0.0.5
 log-adjacency-changes
 area 1 virtual-link 2.0.0.2
 network 172.16.25.0 0.0.0.3 area 1
 network 172.16.35.0 0.0.0.3 area 2
 neighbor 5.5.5.2
!

------------------------------------------------------------------------
------
!
hostname r3

interface Loopback0
 ip address 10.10.10.3 255.255.255.255
!
interface Tunnel0
 ip address 23.23.23.3 255.255.255.248
 tunnel source Serial1/1
 tunnel destination 172.16.25.1

interface Serial1/1
 ip address 172.16.35.1 255.255.255.252
 encapsulation ppp
 serial restart_delay 0
 clockrate 64000

router ospf 1
 router-id 3.0.0.3
 log-adjacency-changes
 network 10.10.10.0 0.0.0.255 area 3
 network 23.23.23.0 0.0.0.7 area 3
 network 172.16.35.0 0.0.0.3 area 2
------------------------------------------------------------------------
-------------------------------------

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