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Re: IPv6 /64 links (was Re: ipv6 book recommendations?)

daemon@ATHENA.MIT.EDU (Masataka Ohta)
Wed Jun 6 17:18:11 2012

Date: Thu, 07 Jun 2012 06:15:53 +0900
From: Masataka Ohta <mohta@necom830.hpcl.titech.ac.jp>
To: nanog@nanog.org
In-Reply-To: <4969C721-8B76-4221-9282-84CEFFB72D25@delong.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

Owen DeLong wrote:

> It is because of IEEE EUI-64 standard.

Right, so far.

> It was believed at the time of IPv6 development that EUI-48 would run out of
> numbers and IEEE had proposed going to EUI-64. While IEEE still hasn't
> quite made that change (though Firewire does appear to use EUI-64 already),
> it will likely occur prior to the EOL for IPv6.

Wrong. It is because I pointed out that IEEE1394 already use EUI-64.

> Since bits are free when designing a new protocol,
> there really was no reason to impose such limitations.

Bits are not free.

Remembering a 64 bit value human, a 128 bit value divine, which
makes IPv6 network operation hard.

						Masataka Ohta


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