Re[2]: [gentoo-user] Re: MAC addresses

["Sergey A. Kobzar" <sergey.kobzar@mail.ru>]

Thursday, April 30, 2009, 7:27:43 PM, James wrote:

> You can actually change your MAC address using ifconfig for many types of NIC's.

> --James

> 2009/4/30 Eric Martin <freak4uxxx@gmail.com>

> Anthony Metcalf wrote:
>> Sergey A. Kobzar wrote:
>>
>>> James, thank you for the useful tip. The output of macchanger:
>>> # macchanger eth1
>>> Current MAC: 00:15:17:1a:6e:6d (Intel Corporate)
>>> Faked MAC:   00:15:17:1a:6e:6e (Intel Corporate)
>>>
>>>
>>> # macchanger eth0
>>> Current MAC: 00:15:17:1a:6e:6c (Intel Corporate)
>>> Faked MAC:   00:15:17:1a:6e:6d (Intel Corporate)
>>>
>>>
>>> How is it possible? I thought NIC has one MAC only.What does mean
>>> 'Faked MAC'?
>>>
>>>
>> Current MAC = MAC in firmware on the card, Faked MAC = MAC the OS is
>> telling the network?
>>
>>
>>

> yes, you can set the mac to what ever you want.  There's a line in
> /etc/conf.d/net that explains how to do this (with macchanger).


No, I didn't change MAC by OS. My /etc/conf.d/net file:

config_eth0=( "aa.bb.cc.dd netmask 255.255.255.224" )
routes_eth0=( "default via 1.2.3.4" )

config_eth1=( "10.11.1.203 netmask 255.255.255.0" )

Nothing that changes MAC addresses for the NICs...

Maybe it's BIOS feature for failover.. It seems I need reboot server
to check BIOS settings.

-- 
Sergey