Security Basics mailing list archives
Re: Alert when MAC address connects to network
From: Pierre BETOUIN <info16 () ifrance com>
Date: Fri, 24 Oct 2003 21:54:04 +0200
The easiest way is to run tcpdump, with a specific filter and eventually grep the Ethernet header. Pierre Le jeu 23/10/2003 à 01:07, Peteris Krumins a écrit :
Monday, October 20, 2003, 7:24:59 PM, you wrote: MR> Hi all! MR> We've got a problem in our school building. There are a lot of laptops MR> in various classrooms and now there is one that has been stolen. We'd MR> really like to be alerted when this machine connects again to the MR> network and like to get our hands on the one using it now. MR> Is there a possibility to get alarmed, when a certain MAC address MR> connects to our network? Any other recommendations to our problem? Oh, yes its certainly possible. The simplest solution would be to write a program, which would monitor the arp table entries on routers which are on the same network the laptops can be connected to. If the same mac detected, shoot out an alert. P.Krumins --------------------------------------------------------------------------- Visual & Easy-to-use are not words that you think of when talking about network analyzers. Are you sick of the three window text decodes? Download ClearSight Network's Analyzer and see a new network analysis tool that makes the complex - easy http://www.securityfocus.com/sponsor/ClearSightNetworks_security-basics_031021 ---------------------------------------------------------------------------- _____________________________________________________________________ Envie de discuter en "live" avec vos amis ? Tlcharger MSN Messenger http://www.ifrance.com/_reloc/m la 1re messagerie instantane de France
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Current thread:
- Alert when MAC address connects to network Magnus Rembold (Oct 20)
- Re: Alert when MAC address connects to network Hendra Santosa (Oct 21)
- Re: Alert when MAC address connects to network Peteris Krumins (Oct 23)
- Re: Alert when MAC address connects to network Pierre BETOUIN (Oct 24)
- <Possible follow-ups>
- RE: Alert when MAC address connects to network David J. Jackson (Oct 20)
- RE: Alert when MAC address connects to network Filipe Joel de Almeida (Oct 21)
- Re: Alert when MAC address connects to network Ivan Coric (Oct 21)