[157494] in North American Network Operators' Group

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Re: Issues encountered with assigning all ones IPv6 /64 address?

daemon@ATHENA.MIT.EDU (Sander Steffann)
Wed Oct 24 07:27:15 2012

From: Sander Steffann <sander@steffann.nl>
In-Reply-To: <20121023121532.GT3867@bitfolk.com>
Date: Wed, 24 Oct 2012 13:26:59 +0200
To: Andy Smith <andy@strugglers.net>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

Hi,

> On a separate note, one of my customers discovered over the weekend
> that if they bring up an all ones IPv6 address in their /64
> (2001:db8:1:1:ffff:ffff:ffff:ffff) then they can't exchange traffic
> with stuff hosted at hetzner.de such as archives.postgresql.org or
> 1-media-cdn.foolz.us. Seems filtered somewhere inside Hetzner.
> 
> I found the same if I brought up an all ones address in any other
> /64 in the same /48 as well. Using ...ffff:ffff:ffff:fffe worked
> fine.
> 
> I haven't had time to investigate further or tell them yet, though.

I discussed this with Hetzner and it seems to be a bug in JunOS 10.3R1.9.
- Sander



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