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From: "James A. Crippen" <james@UnLambda.COM>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] multiple MAC addresses from one network card
Date: Fri, 06 Apr 2001 23:50:36 +0000	[thread overview]
Message-ID: <marc-lartc-98660108121377@msgid-missing> (raw)
In-Reply-To: <marc-lartc-98659466008892@msgid-missing>

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@unlambda.com> ,-./-.  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,
Y(F) = F(Y(F))                        \_,-_/  Milky Way.


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  parent reply	other threads:[~2001-04-06 23:50 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-04-06 22:03 [LARTC] multiple MAC addresses from one network card Alexey Marinichev
2001-04-06 22:10 ` James A. Crippen
2001-04-06 22:16 ` Terry L. Ridder
2001-04-06 22:26 ` Alexey Marinichev
2001-04-06 22:35 ` James A. Crippen
2001-04-06 22:43 ` James A. Crippen
2001-04-06 22:45 ` Alexey Marinichev
2001-04-06 22:53 ` Terry L. Ridder
2001-04-06 22:59 ` James A. Crippen
2001-04-06 23:12 ` Breen Mullins
2001-04-06 23:48 ` Guy Van Den Bergh
2001-04-06 23:50 ` James A. Crippen [this message]
2001-04-07  0:24 ` Ingram Leedy

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