[134941] in North American Network Operators' Group

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Re: IPv6 prefix lengths

daemon@ATHENA.MIT.EDU (Owen DeLong)
Wed Jan 12 23:36:54 2011

From: Owen DeLong <owen@delong.com>
In-Reply-To: <AANLkTimPTPk7TFw2=CucUrVe0VTAGETckXVZvhy13XDo@mail.gmail.com>
Date: Wed, 12 Jan 2011 20:31:17 -0800
To: Richard Barnes <richard.barnes@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

If you have to route them separately, your best bet is to go back to ARIN
under the Multiple Discreet Networks policy and get a block of /48s.

Tastes great, fewer problems.

Owen

On Jan 12, 2011, at 7:49 PM, Richard Barnes wrote:

> Hi all,
> 
> What IPv6 prefix lengths are people accepting in BGP from
> peers/customers?  My employer just got a /48 allocation from ARIN, and
> we're trying to figure out how to support multiple end sites out of
> this (probably around 10).  I was thinking about assigning a /56 per
> site, but looking at the BGP table stats on potaroo.net [1], it looks
> like this is not too common (only .29% of prefixes).  Thoughts?
> 
> Thanks,
> --Richard
> 
> 
> [1] <http://bgp.potaroo.net/v6/as2.0/index.html>



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