Touble ospf md5 authentication

Csaba Szép csszep at gmail.com
Fri Mar 19 18:11:51 CET 2010


Hello!

In my opinion, this is the same issue that i reported at 2009.10.05 in
this list.

Then i disabled LLS in the cisco side, and after everything works well.


ip ospf lls disable




2010/3/19 Ondrej Zajicek <santiago at crfreenet.org>:
> On Fri, Mar 19, 2010 at 05:52:04PM +0159, Vitaliy Kolodinsky wrote:
>> > Hmm, it seems that Cisco just sends some trash after the end of OSPF packet.
>> > Perhaps it would suffice to remove the check in BIRD, but i personally
>> > don't test this compatibility.
>>
>> In area 0.0.0.2 works some Cisco routers, Quagga and experimental
>> BIRD. Cisco and Quagga work perfectly together.
>> Cisco at the end of OSPF Hello packet sent LLS Data Block.
>> Quagga this unit is not sending.
>> LLS Data Block is mentioned in the IETF RFC 4813
>> May participate in the testing.
>
> Yes, LLS data blocks in OSPF packets is the cause of the problem. Thank
> you for a note, i didn't know about RFC 4813. I will look at this
> issue and send you the patch for BIRD to be able to handle LLS data
> blocks.
>
> --
> 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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