From: Mark C at Uniontown.com (bugtraqlists@uniontown.com)
Date: Tue Nov 13 2007 - 10:07:37 EST
Scanning IP's on the opposite side of a Layer 3 device (aka router) will
show them all to have the same MAC (the MAC of the router).
-Mark Coleman
Paul Greene wrote:
> I was in a free wi-fi hotspot the other day and just for kicks ran an
> NMAP scan to see how many people were logged on.
>
> I noticed something peculiar though. Every IP address had identical
> MAC addresses. Is this some security thing the hotspot had going on?
> Or is it some kind of devious thing going on by one of the other
> customers in the hotspot?
>
> PG
>
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