[123352] in North American Network Operators' Group

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RE: IP4 Space

daemon@ATHENA.MIT.EDU (Thomas Magill)
Fri Mar 5 13:07:17 2010

Date: Fri, 5 Mar 2010 10:06:53 -0800
In-Reply-To: <EEC4024F-B47C-45EE-8D3D-1816865E949E@delong.com>
From: "Thomas Magill" <tmagill@providecommerce.com>
To: "Owen DeLong" <owen@delong.com>
Cc: nanog@merit.edu
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

>According to ARIN, _IF_ you meet their requirements for obtaining an
IPv4
>block, then, you ALSO automatically meet their requirements for
obtaining
>an IPv6 block.

Thank you for the clarification.  I am obviously in the very early stage
of planning IPv6 for our company with hopes of at least having peers up
this summer after our peak holiday season (mothers day).  I would prefer
to get an ARIN block so that we feel less locked down to a provider by
using their space. =20

>However, there is a specific block being used to issue ARIN end-user
>assignments, and, many ISPs filter that more liberally (/48) than they
>filter blocks used for allocation (/32).  As such, your customers who
are
>multihomed _MAY_ have a better chance of having their prefix seen if
>they use an ARIN direct assignment.

So what seems to be the standard for the longest advertised prefix for
v6 (compared to /24 for v4)?  If I get a /48 from ARIN how many
non-aggregated prefixes should I expect to have?  This sounds like you
are saying /48 is as specific at it would get.



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