One Interface, multi. MAC, mult. IP

madfrog · 06-28-2007, 08:13 AM

I know that you can have multiple IP addresses on one physical interface. you can use eth0:1, eth0:2, etc...
However, all these "virtual" interfaces have the same MAC address.

Is there a way to have multiple pairs of (IP, MAC) on one single physical network interface?

i.e. on eth0, I want to have
eth0 - IP x.x.x.x, MAC a:a:a:a:a:a
eth0:1 - IP y.y.y.y, MAC b:b:b:b:b:b
eth0:2 - IP z.z.z.z, MAC c:c:c:c:c:c

etc.

TIA
Sebastien.

MatricalDreamer · 06-28-2007, 08:23 AM

Hello madfrog ,

Yes there surely is a way !
It's used to camouflage any cards identification
too the outside world .
According too some Cisco training - long ago - they said
it definitly was possible but also highly illegal ,
and they weren't going to tell

!!
So some googling surely might get you there , can't be that
hard .

farslayer · 06-28-2007, 09:29 AM

Take a look at this, experiment and let us know if it works for you..

http://searchenterpriselinux.techtar...239806,00.html