Relying fully on the ARP tables will not enable you to map a network.
If your goal is to do passive network mapping then you can build
a table of arp and corresponding ip address, then use this knowledge
along with other information such as TTL from these ip addresses to map
the network.
DRajesh
-----Original Message-----
From: Jason Lewis [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 04, 2003 3:37 PM
To: [EMAIL PROTECTED]
Subject: Using ARP to map a network
I have searched and can't seem to find any tools to help map a network
based on ARP tables.
It seems to me, I could take ARP tables from several machines and build
a
network map. If machines were behind a router the ARP tables would show
multiple IP's with the same MAC. With enough ARP tables, wouldn't I be
able to build a map?
Is my theory flawed?
My goal is to do passive network mapping based on any local information
I
can obtain from computers or network devices. Anyone have any ideas?
jas
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