[CentOS] Strange XEN on CentOS HWaddr Address Issue

Andrew Norris andrewn at locus.net
Tue Aug 4 18:20:55 UTC 2009

Brett Serkez wrote:
> - Investigation concluded the issue was that the HWaddr address of the
> physical NIC matched the fabricated HWaddr that XEN uses for most of
> its adapters:  FE:FF:FF:FF:FF:FF.

I had the same problem after (IIRC) a kernel panic.  After a few rounds 
of research and ineffective treatments I shut down the computer, left it 
unplugged for a few minutes, and turned it back on.  The MAC went back 
to normal and it hasn't been an issue since.

Hope that helps.

Andrew Norris
Systems Administrator
Locus Telecommunications
andrewn at locus.net
(201)-947-2807 ext. 1135

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