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Re: Dhcp security

from [Bauer, Henry] Network Security [Permanent Link]
Subject: Re: Dhcp security
Date: Fri, 28 Jan 2005 17:30:55 -0500 
Then the attacker will succeed in getting network access.

MAC-based security will prevent casual compromise.  For a determined
physical attacker, you need something like 802.1x.


On Fri, 2005-01-21 at 20:38 -0600, Miroslaw Slawek Chorazy wrote:

What if user manually alters the NIC and changes his/her NIC address to
 that which was registered to  and unplugged from the physical port?  


"Bauer, Henry" <Henry.Bauer@lendingtree.com> 1/21/2005 09:43 >>>

A more comprehensive way to accomplish the same thing is ethernet MAC
locking your switch.  Ciscos, at least, can be told to learn one MAC,
then if anything else is plugged in, it disables the port.  You don't
have to configure each MAC.  Manually disable any unused port.



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