[112491] in North American Network Operators' Group
Re: MAC address confusion
daemon@ATHENA.MIT.EDU (Grzegorz Banasiak)
Sat Feb 28 12:22:44 2009
In-Reply-To: <20090228165022.GA6429@mx.ytti.net>
Date: Sat, 28 Feb 2009 18:22:33 +0100
From: Grzegorz Banasiak <gbonthenet@gmail.com>
To: Saku Ytti <saku+nanog@ytti.fi>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
> Whic one of these, is locally assigned unicast MAC address, when talking =
about
> output format CSCO uses?
>
> 4000.0000.0000 (Local IXPs choice)
> 0200.0000.0000 (My money is here)
the second one. most significant byte is on the left, but within the
byte, most significant bits are on the right. so U/L bit is the second
one counting from the left.
> http://standards.ieee.org/regauth/oui/oui.txt
> 02-07-01 =A0 (hex) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0RACAL-DATACOM
good point, dunno.
