nanog mailing list archives

Re: The tale of a single MAC


From: Jethro R Binks <jethro.binks () strath ac uk>
Date: Thu, 6 Jan 2011 13:35:24 +0000 (GMT)

On Sun, 2 Jan 2011, Lynda wrote:

Google does NOT know all. I was there. I have had to deal with a 
building full of such wickedness. I administered DNS (in my copious 
spare time) for two subdomains, and managed the network in the building 
(a not inconsiderable /22, and also in my spare time), and started 
getting frantic calls from people who were getting knocked off the 
network because their machine had the same MAC address as another.

I had trouble believing it at first, but after dealing with five of them 
(all Gateways, and yes, all with the same MAC address), I directed the 
local sysadmins to disable the nic that came with them, and to replace 
it with a spare. I understand that there were 30,000 of them, all with 
the same address. My guess is that you'll never find it on Google, since 
it happened around 1993-4 or so.

You will now.

.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .
Jethro R Binks, Network Manager,
Information Services Directorate, University Of Strathclyde, Glasgow, UK

The University of Strathclyde is a charitable body, registered in
Scotland, number SC015263.


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