The tale of a single MAC

Raul Rodriguez at
Sat Jan 1 21:53:51 CST 2011

Seen this on six-figure gateways.


On 1/1/11, Suresh Ramasubramanian <ops.lists at> wrote:
> I've seen duplicate MAC addresses but only on no name made in china
> NICs installed on cheap (assembled from parts) PCs at a school
> computer lab.
> On Sun, Jan 2, 2011 at 9:03 AM, Graham Wooden <graham at> wrote:
>> In the last 15 years of being in IT, I have never encountered a
>> ³burned-in²
>> duplicated MACs across two physically different machines.  What are the
>> odds, that HP would dup¹d them and that both would eventually end up at my
>> shop?  Or maybe this type of thing isn¹t big of deal... ?
> --
> Suresh Ramasubramanian (ops.lists at

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