[156385] in North American Network Operators' Group
Re: IPv6 Ignorance
daemon@ATHENA.MIT.EDU (Adrian Bool)
Mon Sep 17 09:39:00 2012
From: Adrian Bool <aid@logic.org.uk>
In-Reply-To: <50571759.5050704@illuminati.org>
Date: Mon, 17 Sep 2012 14:37:44 +0100
To: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 17 Sep 2012, at 13:28, John Mitchell <mitch@illuminati.org> wrote:
> <snip>
> > Given that the first 3 bits of a public IPv6 address are always 001, =
giving /48 allocations to customers means that service providers will =
only have 2^(48-3) or 2^45 allocations of /48 to hand out > to a =
population of approximately 6 billion people. 2^33 is over 8 billion, so =
assuming a population of 2^33, there will be enough IPv6 /48 allocations =
to cater for 2^(45-33) or 2^12 or 4096 IPv6 > address allocations per =
user in the world."
> </snip>
It seems a tad unfair that the bottom 80 bits are squandered away with a =
utilisation rate of something closely approximating zero; yet the upper =
48 bits are assumed to have zero wastage...
Regards,
aid
