Security Basics mailing list archives

Re: prohibiting visitors from connecting to network


From: Fred Cohen <fred.cohen () all net>
Date: Mon, 24 Oct 2005 16:06:51 -0700

Or you might try 802.1X

FC

On Oct 22, 2005, at 9:31 AM, Brian Loe wrote:

Why not limit DHCP to known MAC addresses. The administrative costs of this
might be pretty high at first, but you could eventually work out an
automated system for adding/removing machines. That's the only "free" option
that I can think of.

Even then, though, I believe you can spoof MAC addresses so...


-----Original Message-----
From: Alexander Suhovey [mailto:asuhovey () mtu-net ru]
Sent: Thursday, October 20, 2005 2:01 PM
To: 'Cesar Diaz'; security-basics () securityfocus com
Subject: RE: prohibiting visitors from connecting to network


What I'm looking for is a way to secure DHCP so that only our
laptops/workstations can get a DHCP address.
I was thinking of something like EAP used for remote access with
certificates to keep computers without a certificate from

receiving an

IP address, but I can find any information on implementing this.





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