[124828] in North American Network Operators' Group
Re: what about 48 bits?
daemon@ATHENA.MIT.EDU (Jon Lewis)
Mon Apr 5 16:37:07 2010
Date: Mon, 5 Apr 2010 16:36:26 -0400 (EDT)
From: Jon Lewis <jlewis@lewis.org>
To: "A.B. Jr." <skandor@gmail.com>
In-Reply-To: <i2x25f9e2131004040753k31515650xc28df222a4abf88e@mail.gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Sun, 4 Apr 2010, A.B. Jr. wrote:
> Hi,
>
> Lots of traffic recently about 64 bits being too short or too long.
>
> What about mac addresses? Aren't they close to exhaustion? Should be. Or it
> is assumed that mac addresses are being widely reused throughout the world?
> All those low cost switches and wifi adapters DO use unique mac addresses?
Since they only really need to be unique per broadcast domain, it doesn't
really matter. You can I could use the same MAC addresses on all our home
gear, and never know it. For manufacturers, it's probably reasonably safe
to reuse MAC addresses they put on 10mbit ISA ethernet cards...if they
were a manufacturer back then.
----------------------------------------------------------------------
Jon Lewis | I route
Senior Network Engineer | therefore you are
Atlantic Net |
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