Re: [LARTC] multiple MAC addresses from one network card

Linux Advanced Routing and Traffic Control

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On Sat, 7 Apr 2001, Guy Van Den Bergh wrote:

> > 
> > There is AFAIK no way to assign multiple concurrent addresses to a
> > device.  Does anyone know otherwise?  Is it even theoretically
> > possible?  I don't think so the way most cards are designed.
> 
> I don't know of any system to do this either, but I think it is theoretically possible.
> If you can get your NIC to listen to *any* destination MAC address (promiscuous mode), why would it be
> impossible to let it listen to two different destination MAC addresses.
> But this remains theory. I don't know of any card that can do this...

That's an idea for a kernel hack where you put the card into promiscuous
mode and then filter from there for only certain addresses.  But that
would be a heavyhanded hack and I can see it chewing up quite a bit of
resources on a busy network.

'james

-- 
James A. Crippen <james@xxxxxxxxxxxx> ,-./-.  Anchorage, Alaska,
Lambda Unlimited: Recursion 'R' Us   |  |/  | USA, 61.2069 N, 149.766 W,
Y = \f.(\x.f(xx)) (\x.f(xx))         |  |\  | Earth, Sol System,
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