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Re: Alert when MAC address connects to network
From: Peteris Krumins <newsgroups () lf lv>
Date: Thu, 23 Oct 2003 02:07:52 +0300

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.


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