Ethernet MAC address

[Tom H]

On Sat, Dec 4, 2010 at 9:05 AM, Misha Shnurapet
<shnurapet at fedoraproject.org> wrote:
>
> My Ethernet card stopped functioning, I believe it happened when I deleted the device in the old system-config-network tool.
>
> >From that time my card's MAC address is FF:FF:FF:FF:FF:FF upon boot. I did a clean install of F14, nothing changed.
>
> I asked for help at a local forum and they asked me to try this:
> # ifconfig eth0 down
> # ifconfig eth0 hw ether 00:BB:CC:DD:EE:FF
> # ifconfig eth0 up
>
> It does work that way.

The "FF:FF:FF:FF:FF:FF" is a sign of hardware failure.