RE: Locating devices on a network

From: Spigelman, David (dspigelm@amerix.com)
Date: 09/20/01 

Message-ID: <037AF85FF188D211B67700805F9FC2CE0470FC13@corpexch02.ad.root>
From: "Spigelman, David" <dspigelm@amerix.com>
To: 'Nils Kristian Kristiansen' <nkk@c2i.net>, SECURITY-BASICS@securityfocus.com
Subject: RE: Locating devices on a network
Date: Thu, 20 Sep 2001 13:12:31 -0400

Nils,

I can tell you one way to do it in a Cisco switched environment (using
Switch IOS):

1. From a machine (could be the router) on the same network as the device,
display the arp table and look for the ip address in question.
2. From the switch, issue a show cam <mac address>. This will show you the
card and port with which that mac address is associated.

Hope that helps.

-- DS

-----Original Message-----
From: Nils Kristian Kristiansen [mailto:nkk@c2i.net]
Sent: Wednesday, September 19, 2001 3:08 PM
To: SECURITY-BASICS@securityfocus.com
Subject: Locating devices on a network

Hello all!
I would like to know how to locate a device on my network.
The only thing I know is the IP-address, and I would really like to know
what switch and portnumber the device is connected to.

Thanks!

Best regards
Nils Kristiansen

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