[112493] in North American Network Operators' Group
Re: MAC address confusion
daemon@ATHENA.MIT.EDU (JAKO Andras)
Sat Feb 28 16:38:23 2009
Date: Sat, 28 Feb 2009 22:38:14 +0100 (CET)
From: JAKO Andras <jako.andras@eik.bme.hu>
To: Saku Ytti <saku+nanog@ytti.fi>
In-Reply-To: <20090228165022.GA6429@mx.ytti.net>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
> http://standards.ieee.org/regauth/oui/oui.txt
> 02-07-01 (hex) RACAL-DATACOM
> A0-6A-00 (hex) Verilink Corporation
>
> In either case two of the lowest or highest bits of 1st octet seems to be
> happily used to assign addresses. What am I missing here?
After enabling DECnet routing, the interface MAC address turns to
something like this:
GigabitEthernet0/2 is up, line protocol is up
Hardware is BCM1250 Internal MAC, address is aa00.0400.0a04 (bia 000b.bffd.fc1a)
And you'll find
AA-00-04 (hex) DIGITAL EQUIPMENT CORPORATION
in the list. I don't know what 02-07-01 is, but I guess that could be
something similar: The OUI belongs to a company, but they don't use the
addresses to burn them into interface cards.
Andras
