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RE: Deny client from obtaining IP address
From: "Thomas D." <whistl0r () googlemail com>
Date: Thu, 27 Jul 2006 21:58:22 +0200

-----Original Message-----
From: rolando_ruiz () jetaviation 
Is there a way that in DHCP or so, one can deny a client computer from
obtaining an IP address? We use Microsoft servers ADS environment and
I'd like to allow only those we want to obtain
an IP address. I don't want to make it too restricted where authorized
users are unable to connect. I'm sure there are some 3rd party apps that
can handle this and I welcome suggestions on those also. This is a
solution for denying connectivity to outsiders.

I don't recommend using any kind of software, because you can brake it.
I would recommend to use managed network equipment.

So you can activate/deactivate ports...

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