[155391] in North American Network Operators' Group

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Re: Trouble with IPv6 setup on Quagga

daemon@ATHENA.MIT.EDU (Marco Hogewoning)
Tue Aug 7 04:53:43 2012

From: Marco Hogewoning <mch-nanog@xs4all.nl>
In-Reply-To: <CAJ0+aXZK=ghv9_yt3=OJyoVrnFtwDKNwALJXSUdFfUCXNmHE9w@mail.gmail.com>
Date: Tue, 7 Aug 2012 10:51:48 +0200
To: Anurag Bhatia <me@anuragbhatia.com>
Cc: NANOG Mailing List <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

> I am having trouble with Quagga in setting up IPv6 BGP. So far it was
> failing with external providers. Just now I gave it a try to setup BGP
> session (IPv6 only) within our ASN between two routers.
>=20
> =46rom our other end router I see there is no acconcement, while I see =
blocks
> being announced via Quagga. Also strange enough is that the number of
> blocks I account - they all come as "withdrawl routes" on other router =
as
> soon as Quagga is turned on.

I recall some issues with the value of the next-hop in the BGP messages =
in the past. Haven't been around Quagga in recent times, don't know if =
this is still the case. If possible you might want to catch a BGP packet =
with tcpdump and verify the value in there makes sense to the other =
side.

Got bitten by this before and took me ages to figure out the other side =
was dropping my updates because the next-hop couldn't be resolved.

Marco=


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