RE: OSPF Virtual Link Issues ---

From: Kemal YILDIRIM (kemalhy@gmail.com)
Date: Sat Jul 08 2006 - 17:02:52 ART


Hi there Russ,
AFAIK, in this LAB there was an authentication requirement.
Did you configure OSPF area 0 authentication on another router.

And Router4 config has an typo;
network 191.1.48.4 0.0.0.0 area 4 ----> sould be "area 48"

No Hellos (Passive interface) ----> indicating your problem

As I read many times on GS, do what they are asking, passive interface usage
is not a requirement in this scenario, but it can be useful in reallife.

Cheers,
Kemal

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Russell Kelly (rukelly)
Sent: Saturday, July 08, 2006 10:33 PM
To: ccielab@groupstudy.com
Subject: OSPF Virtual Link Issues ---

Hi All,

I am running into trouble with Virtual links in OSPF --- I keep getting
the following states with the Virtual link (below) ---

The router IDs are correct -- the link is a simple back to back ppp link
(with an OSPF adj over it) -- -however I keep getting the following:

On one side:

Virtual Link OSPF_VL2 to router 150.1.5.5 is up
  Run as demand circuit
  DoNotAge LSA allowed.
  Transit area 45, via interface Serial0/1, Cost of using 64
  Transmit Delay is 1 sec, State POINT_TO_POINT,
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    No Hellos (Passive interface)
    Adjacency State INIT (Hello suppressed)
    Index 0/0, retransmission queue length 0, number of retransmission 0
    First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0)
    Last retransmission scan length is 0, maximum is 0
    Last retransmission scan time is 0 msec, maximum is 0 msec

On the other:

Virtual Link OSPF_VL0 to router 150.1.4.4 is up
  Run as demand circuit
  DoNotAge LSA allowed.
  Transit area 45, via interface Serial0/1, Cost of using 64
  Transmit Delay is 1 sec, State POINT_TO_POINT,
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:02

I am stumped --- all looks fine --- but I'm sure I'm missing
something... HELP --- this should be soo simple....??...!!

Here are the relevant pieces of config too:

interface Serial0/1
 ip address 191.1.45.5 255.255.255.128
 encapsulation ppp
 ip tcp header-compression
 ip tcp compression-connections 256
 clockrate 64000
!
router ospf 1
 router-id 150.1.5.5
 log-adjacency-changes
 area 45 virtual-link 150.1.4.4
 redistribute connected subnets route-map LO0
 passive-interface default
 no passive-interface Serial0/0
 no passive-interface Serial0/1
 network 191.1.5.5 0.0.0.0 area 5
 network 191.1.45.5 0.0.0.0 area 45
 network 191.1.125.5 0.0.0.0 area 0

==============================

interface Serial0/1
 ip address 191.1.45.4 255.255.255.128
 encapsulation ppp
 ip tcp header-compression
 ip tcp compression-connections 256
!
router ospf 1
 router-id 150.1.4.4
 log-adjacency-changes
 area 45 virtual-link 150.1.5.5
 redistribute connected subnets route-map LO0
 passive-interface default
 no passive-interface Serial0/0
 no passive-interface FastEthernet0/1
 no passive-interface Serial0/1
 network 191.1.34.4 0.0.0.0 area 34
 network 191.1.45.4 0.0.0.0 area 45
 network 191.1.48.4 0.0.0.0 area 4

Russ



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