Behaviour when ethernet MAC is 00:00:00:00:00:00 ?

Denis Leroy denis at poolshark.org
Mon Nov 19 16:52:11 UTC 2007


Gilboa Davara wrote:
> On Mon, 2007-11-19 at 16:52 +0100, KH KH wrote:
>> 2007/11/19, Michael Wiktowy <michael.wiktowy at gmail.com>:
>>> Hi,
>>>
>>> It seems recently one of my two onboard NICs has decided to not
>>> remember its MAC address between reboots. Since I just updated the
>>> BIOS firmware, I suspect that as the culprit but I also upgraded to
>>> Fedora 8 about the same time so it may be to blame. I don't know.
>> When you update the bios, the tool accept a parameter for the mac
>> address.. Each time you flash the bios, you need to give the mac
>> address for the integrated ethernet (usually written on the top of the
>> mainboard ), so it can be hardcoded into the bios...
>>
>> Nicolas (kwizart)
>>
> 
> I've updated my share of BIOS... Large share.
> Never seen a BIOS upgrade that erases the MAC address.
> 
> Most likely the on-board NIC has been fried.

typically the MAC address is programmed into an on-board eeprom 
connected to the NIC. That's probably what's fried (or simply erased).




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