[157461] in North American Network Operators' Group
Issues encountered with assigning all ones IPv6 /64 address? (Was
daemon@ATHENA.MIT.EDU (Andy Smith)
Tue Oct 23 08:17:16 2012
Date: Tue, 23 Oct 2012 12:15:32 +0000
From: Andy Smith <andy@strugglers.net>
To: nanog@nanog.org
Mail-Followup-To: nanog@nanog.org
In-Reply-To: <73A9A2579638014A8254BF9FE31DDB244FAF4FA6@mbx2.jiveland.com>
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Hello,
On Mon, Oct 22, 2012 at 10:07:50PM +0000, Paul Zugnoni wrote:
> Curious whether it's commonplace to find systems that
> automatically regard .0 and .255 IP addresses (ipv4) as src/dst in
> packets as traffic that should be considered invalid.
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.
Is that sort of thing common?
Cheers,
Andy
--
http://bitfolk.com/ -- No-nonsense VPS hosting
