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Date: Tue, 8 Jan 2002 13:45:38 -0500 (EST)
From: Matthew Emmerton <matt@gsicomp.on.ca>
To: Lucas Bergman <lucas@slb.to>
Cc: Jan Knepper <jan@digitaldaemon.com>,
	FreeBSD Questions <FreeBSD-Questions@FreeBSD.ORG>
Subject: Re: Detecting IP addresses on ONE system.
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If you're on the same LAN as this system, arp will tell you the MAC
address associated with each IP.  If the MAC addresses are the same, then
they IPs are on the same card (hence same system).

-- 
Matthew Emmerton      || matt@gsicomp.on.ca
GSI Computer Services || http://www.gsicomp.on.ca

On Tue, 8 Jan 2002, Lucas Bergman wrote:

> > I wondered if there is a way to detect from the outside how many IP 
> > address assignments a system has.
> 
> It's not really clear (to me) what you mean here.  An answer to your
> question might be:  It is not possible, in general, to tell if two
> given IP addresses are assigned to the same physical computer.
> 
> > I've got an IP address 62.50.15.83 and would like to know the real
> > whereabouts of the system.
> 
> Doing a ``reverse'' DNS lookup and checking out the domain name might
> give you a hint.  There are (possibly) other clues, too; search the
> web.
> 
> Lucas
> 
> 
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