Re: [Fwd:] Nvidia NICs with duplicate mac addresses

* Christopher LILJENSTOLPE · * Tue Sep 09 00:44:23 2008

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Oh, it's the truth - trust me. There was an Interop show (back when
it really was an Interoperability event) that was made quite enjoyable
for the network staff by that set of NIC cards....
 Chris
On 05 Sep 2008, at 07.53, Scott Berkman wrote:
This reminds me of a story I was told a while back that there was a
batch

of 3com NIC's that all went out with the same MAC from the factory. I

never found out if that was a rumor/urban legend or the truth. Anyone

know firsthand or have an article about that?
 -Scott
-----Original Message-----
From: Robert E. Seastrom [mailto:[email protected]]
Sent: Friday, September 05, 2008 10:33 AM
To: [email protected]
Subject: [Fwd:] Nvidia NICs with duplicate mac addresses

Forwarded to NANOG in the interests of wider awareness...  having been
there and torn out my already scarce hair, duplicate MAC addresses can
really mess up your day...
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Just when you thought this couldn't happen any more...
Copying from a different email list...
mac address 04:4b:80:80:80:03, was showing up in multiple places
across the network. I googled the mac address and discovered that
other people are having the same issue with this mac address. Below
are some links describing the problem:

http://forums.nvidia.com/index.php?showtopic=22148
http://www.nvnews.net/vbulletin/archive/index.php/t-73469.html

I just wanted everyone to know about this problem in case you run
across similar slow "connectivity" issues. I believe the network card
is made by NVIDIA.

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ææç
Check my PGP key here:
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