[169600] in North American Network Operators' Group
Re: [Solved] Any CenturyLink IPv6 engineers/tech people around?
daemon@ATHENA.MIT.EDU (Brielle Bruns)
Wed Mar 5 15:38:53 2014
Date: Wed, 05 Mar 2014 13:38:26 -0700
From: Brielle Bruns <bruns@2mbit.com>
To: nanog@nanog.org
In-Reply-To: <531647D8.4040701@2mbit.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 3/4/14, 2:38 PM, Brielle Bruns wrote:
> Hello all,
>
> Don't suppose there's any CenturyLink engineers/tech people on this list
> that can look into a problem with their IPv6 6rd service?
>
Thanks for the off-list replies. Think I've got the issues figured out.
6rd behaves a lot like 6to4 in how it handles traffic destined for hosts
in the same ISP IPv6 subnet - and aggressive filtering of protocol 41 on
external facing interfaces can break that.
RFC5569 has more details on implementation, in case anyone else runs
into this problem at a later point.
--
Brielle Bruns
The Summit Open Source Development Group
http://www.sosdg.org / http://www.ahbl.org
