ospf netmask mismatch
santiago at crfreenet.org
Mon Jul 12 15:53:31 CEST 2010
On Mon, Jul 12, 2010 at 01:39:25PM +0200, Martin Kraus wrote:
> Hi. I have bird 1.2.2 running on debian lenny on two routers connected by a
> nonbroadcast configuration.
> first router has 184.108.40.206/30 on its interface, the second
> 220.127.116.11/30. They can't negotiate ospf and I get this in the log:
> bird: OSPF: Bad HELLO packet from 18.104.22.168 - netmask mismatch (255.255.255.128)
> both routers have additional private prefixes from /25 on their interfaces. Is
> there a problem with such a setup? it works fine on older birds in the rest of
> the network.
The private /25 prefixes uses private IP addresses? There was a change in BIRD
that interface with more IP addresses works like more virtual interfaces with
regard to OSPF, but it should not cause problems and it was earlier change
It is strange that reported netmask is /31, but you said that it uses
22.214.171.124/30 . Could you send me output of 'show ospf interface'?
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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