[134283] in North American Network Operators' Group
Re: The tale of a single MAC
daemon@ATHENA.MIT.EDU (Mikael Abrahamsson)
Mon Jan 3 01:06:12 2011
Date: Mon, 3 Jan 2011 07:05:24 +0100 (CET)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: "Dobbins, Roland" <rdobbins@arbor.net>
In-Reply-To: <78D2B812-4565-44DD-A465-CAE95C1FDD38@arbor.net>
Cc: Nanog <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Mon, 3 Jan 2011, Dobbins, Roland wrote:
> I remember that there were several high-profile instances of duplicate
> MAC addresses being burnt into NICs during the 1990s - once every 2-3
> years, IIRC. And those were just the ones that were discussed publicly.
D-Link shipped NAT-boxes around 2003-2004 or so with identical MAC
addresses (and a "clone your PC mac address to the WAN
interface"-functionality). I checked my then employer ADSL network and 5%
of the customer ports had the same MAC address, D-Link support alledgedly
said something about the MAC address not being "unique enough" and
directed their customers to the cloning functionality to "solve" the
problem.
--
Mikael Abrahamsson email: swmike@swm.pp.se
