From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Mon Jan 01 2007 - 14:45:45 ART
I think we found the problem. Now let's see if we can verify it with
the following questions.
1) Does R4 have OSPF routes in its routing table from R6 and vice versa?
2) Are the OSPF network types compatible* between R4 and R6?
* Incompatible OSPF network types are having one that uses the concept
of a DR neighbored with another that that doesn't use this concept.
Although they can become neighbors they aren't truly adjacent.
Sorry for this roundabout answer but sometimes this is the best way to
learn. Even for me ;-)
HTH,
Brian Dennis, CCIE4 #2210 (R&S/ISP-Dial/Security/SP)
bdennis@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
KSGoh
Sent: Monday, January 01, 2007 9:02 AM
To: Ronnie Angello; KSGoh
Cc: Cisco certification
Subject: Re: virtual-link
sory.. my mistake.. below are the actual config from my router
R4
router ospf 100
router-id 150.1.1.4
log-adjacency-changes
area 46 virtual-link 150.1.1.6
network 150.1.1.0 0.0.0.255 area 0
network 183.1.0.0 0.0.0.255 area 0
network 183.1.45.0 0.0.0.255 area 45
network 183.1.46.0 0.0.0.255 area 46
neighbor 183.1.45.5
R4#sh ip ospf nei
Neighbor ID Pri State Dead Time Address
Interface
150.1.1.5 1 FULL/DR 00:00:39 183.1.0.5
Serial1/0
150.1.1.5 1 FULL/DR 00:01:40 183.1.45.5
Ethernet0/0
150.1.1.6 0 FULL/ - 00:00:37 183.1.46.6
Ethernet0/1
R4#sh ip ospf virtual
Virtual Link OSPF_VL2 to router 150.1.1.6 is down
Run as demand circuit
DoNotAge LSA allowed.
Transit area 46, Cost of using 65535
Transmit Delay is 1 sec, State DOWN,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
R6
router ospf 100
router-id 150.1.1.6
log-adjacency-changes
area 46 virtual-link 150.1.1.4
network 150.1.1.0 0.0.0.255 area 5
network 183.1.46.0 0.0.0.255 area 46
R6#sh ip ospf nei
Neighbor ID Pri State Dead Time Address
Interface
150.1.1.4 1 FULL/BDR 00:00:35 183.1.46.4
Ethernet0/0
R6#sh ip ospf virtual
Virtual Link OSPF_VL2 to router 150.1.1.4 is down
Run as demand circuit
DoNotAge LSA allowed.
Transit area 46, Cost of using 65535
Transmit Delay is 1 sec, State DOWN,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
----- Original Message -----
From: Ronnie Angello
To: KSGoh
Cc: Cisco certification
Sent: Tuesday, January 02, 2007 12:39 AM
Subject: Re: virtual-link
What are you trying to link to area 0? It looks like area 45 and area
46
are both already connected to area 0.
On 1/1/07, KSGoh < kianseng.goh@gmail.com> wrote:
any idea why the vitual link is down, down ?
R4
router ospf 100
router-id 150.1.1.4
log-adjacency-changes
area 46 virtual-link 150.1.1.6
network 150.1.1.0 0.0.0.255 area 0
network 183.1.0.0 0.0.0.255 area 0
network 183.1.45.0 0.0.0.255 area 45
network 183.1.46.0 0.0.0.255 area 46
neighbor 183.1.45.5
R6
router ospf 100
router-id 150.1.1.6
log-adjacency-changes
area 46 virtual-link 150.1.1.4
network 150.1.1.0 0.0.0.255 area 46
network 183.1.46.0 0.0.0.255 area 46
This archive was generated by hypermail 2.1.4 : Thu Feb 08 2007 - 23:46:55 ART