From: Joachim Schipper (j.schipper@math.uu.nl)
Date: Wed Dec 07 2005 - 04:04:03 EST
On Tue, Dec 06, 2005 at 09:24:17PM -0600, Brian Loe wrote:
> It would have to have two NICs, would it not? How else could it be on
> both networks?
>
> My question is, how do you *ping* a MAC address?
>
> On 12/6/05, Joachim Schipper <j.schipper@math.uu.nl> wrote:
> > On Mon, Dec 05, 2005 at 04:57:49PM +0200, Roni Bachar wrote:
> > > I am testing two separated networks one is a big 4 A class network and one
> > > is a small c class. I would like to see that no machine is connected to the
> > > C class and to the A class at the same time.
> > >
> > > Some pre-information: I don't have access to the DHCP server nor to the
> > > switches and I am not Administrator of the network.
> > >
> > > I thought the best way is to scan the class c get all the mac and then
> > > connect to the A class and find a way to see if this mac's exist on it or
> > > not.
> > >
> > > p.s I know that I can scan both network with varies of tools and compare the
> > > mac's but I rather not do it this way.
> > >
> > > My goal is to find out other ways to see that the mac isn't connected to
> > > Both networks.
> >
> > You *are* aware that this whole check-with-MAC thing only works if you
> > presuppose that no single host has more than a single NIC?
> >
> > Joachim
What you ask is clear. What is not clear is how you intend this to help
identifying hosts that are on both networks, seeing how the MAC is tied
to the NIC and no single NIC is likely to be on both networks, as you
noted.
Joachim
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