[134267] in North American Network Operators' Group
Re: The tale of a single MAC
daemon@ATHENA.MIT.EDU (Seth Mattinen)
Sun Jan 2 01:57:22 2011
Date: Sat, 01 Jan 2011 22:56:24 -0800
From: Seth Mattinen <sethm@rollernet.us>
To: nanog@nanog.org
In-Reply-To: <C9454E3A.2921F%graham@g-rock.net>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 1/1/11 7:33 PM, Graham Wooden wrote:
>
> So here is the interesting part... Both servers are HP Proliant DL380 G4s,
> and both of their NIC1 and NIC2 MACs addresses are exactly the same. Not
> spoofd and the OS drivers are not mucking with them ... They¹re burned-in
> I triple checked them in their respective BIOS screen. I acquired these two
> machines at different times and both were from the grey market. The ³What
> the ...² is sitting fresh in my mind ... How can this be?
>
> 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... ?
>
None of the HP servers I have contain duplicate MAC addresses. (I just
looked through all the iLO2 cards to make sure I wasn't lying.) I'll
send you some details offlist.
~Seth
