ospf virtual link not coming up

Ondrej Zajicek santiago at crfreenet.org
Tue Nov 27 22:27:33 CET 2012


On Sun, Nov 25, 2012 at 02:46:36PM +0100, Martin Kraus wrote:
> Hi.
> I'm playing with ospf and got stuck on a virtual link with a cisco router. The
> cisco virtual link is up and I can see hello packets coming to the linux
> router but nothing going out. It's connected through area 0.0.0.1. I can see
> both routers in lsdb. 
> 
> debug in bird produces following:
> 
> OSPF: Received packet for unknown vlink (ID 192.168.70.1, IP 10.5.1.1)

This is because vlink iface on linux router is down.

> bird RID 10.4.7.1:
> 
>         area 0.0.0.1 {
>                 interface "r2" {
>                         cost 10;
>                         type pointopoint;
>                         neighbors {
>                                 10.4.8.2;
>                         };

The config is probably OK. Note that 'neighbors' option is unnecessary
for ptp link.

> bird> show ospf interfaces
> Virtual link to 192.168.70.1:
>     Peer IP: 0.0.0.0
>     Transit area: 0.0.0.1 (1)
>     Interface: "(none)"
>     State: down
>     Priority: 0
>     Cost: 0
>     Hello timer: 10
>     Wait timer: 40
>     Dead timer: 40
>     Retransmit timer: 5

The iface is down so i suppose that router 192.168.70.1 is unreachable
from the linux router. What is the output of 'show ospf state all'?

-- 
Elen sila lumenn' omentielvo

Ondrej 'SanTiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."
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