[SlugBug] Re: [Shefnet ] ospf routing with zebra

[Damien Dye]

Alan Dawson wrote:
> Quoting Damien Dye <damien at shefnet.org.uk>:
> 
> 
>>Hi
>>all am having a few problems with zebra
>>
>>I have to boxes at each end of an ipip VPN tunnel
>>both have routing tables which need to be propergated with each other
>>my plan was to use ospf but it's just not happening.
>>
>>some help in getting the information on getting them to exchange
>>is needed but am unable to find out what is missing from the internet.
> 
> 
> I don't know your solution, but I'm gonna say some dumb things in the hope it
> helps you..  can you ping each end ? (of course you can i hear you say!)  What
> do you see from a tcpdump ?  Can you see the ospf packets ?  I see lots of
> stuff like this floating about
> 
> BoneIdol:/etc/zebra# tcpdump -i wlan0wds1 -n
> tcpdump: listening on wlan0wds1
> 22:45:30.639069 10.10.2.113 > 224.0.0.5:  OSPFv2-ls_upd 124: rtrid 10.10.2.129
> backbone [ttl 1]
> 22:45:31.189813 10.10.2.114 > 224.0.0.5:  OSPFv2-ls_ack 44: rtrid 10.10.3.22
> backbone [ttl 1]
> 22:45:31.417985 0:9:5b:2f:df:a8 ff:ff:ff:ff:ff:ff 8039 64:
>                          0400 0000 0000 0000 0000 0000 0000 0000
>                          0000 0000 0000 0000 0000 0000 0000 0000
>                          0000 0000 0000 0000 0000 0000 0000 0000
>                          0000
> 22:45:32.117598 10.10.2.113 > 224.0.0.5:  OSPFv2-hello 48: rtrid 10.10.2.129
> backbone dr 10.10.2.113 bdr 10.10.2.114 [ttl 1]
> 22:45:34.270545 10.10.2.114 > 224.0.0.5:  OSPFv2-hello 48: rtrid 10.10.3.22
> backbone dr 10.10.2.113 bdr 10.10.2.114 [ttl 1]
> 22:45:36.419649 0:9:5b:40:a0:7 ff:ff:ff:ff:ff:ff 8039 64:
>                          0400 0000 0000 0000 0000 0000 0000 0000
>                          0000 0000 0000 0000 0000 0000 0000 0000
>                          0000 0000 0000 0000 0000 0000 0000 0000
>                          0000
> 22:45:41.423165 0:9:5b:2f:df:a8 ff:ff:ff:ff:ff:ff 8039 64:
>                          0400 0000 0000 0000 0000 0000 0000 0000
>                          0000 0000 0000 0000 0000 0000 0000 0000
>                          0000 0000 0000 0000 0000 0000 0000 0000
>                          0000
> 22:45:42.123052 10.10.2.113 > 224.0.0.5:  OSPFv2-hello 48: rtrid 10.10.2.129
> backbone dr 10.10.2.113 bdr 10.10.2.114 [ttl 1]
> 22:45:44.280486 10.10.2.114 > 224.0.0.5:  OSPFv2-hello 48: rtrid 10.10.3.22
> backbone dr 10.10.2.113 bdr 10.10.2.114 [ttl 1]
> 22:45:46.429632 0:9:5b:40:a0:7 ff:ff:ff:ff:ff:ff 8039 64:
>                          0400 0000 0000 0000 0000 0000 0000 0000
>                          0000 0000 0000 0000 0000 0000 0000 0000
>                          0000 0000 0000 0000 0000 0000 0000 0000
>                          0000
> 
> Your not blocking multicast are you on a firewall ?


I see nothing floating about at all from the ospfd on the tunnel.
and the firewall is not blocking any traffic on an of the interfaces.

and the daemons are running on both machines.
> 
> AED