[128271] in North American Network Operators' Group

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Re: Addressing plan exercise for our IPv6 course

daemon@ATHENA.MIT.EDU (Matthew Walster)
Thu Jul 29 11:01:21 2010

In-Reply-To: <2C4DBA48-36B7-41C1-B1D1-7660AAE8484D@delong.com>
From: Matthew Walster <matthew@walster.org>
Date: Thu, 29 Jul 2010 16:00:40 +0100
To: Owen DeLong <owen@delong.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

On 29 July 2010 15:49, Owen DeLong <owen@delong.com> wrote:
> If we give every household on the planet a /48 (approximately 3 billion
> /48s), we consume less than 1/8192 of 2000::/3.

There are 65,536 /48s in a /32. It's not about how available 2000::/3
is, it's hassle to keep requesting additional PA space. Some ISPs
literally have millions of customers.

All I'm saying is, why waste the space when they're only going to need
1 subnet? If they want more than one subnet, give them a /48,/56,/60
or whatever, as requested.

M


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