Re: Dhcp security

From: Bauer, Henry (Henry.Bauer_at_lendingtree.com)
Date: 01/28/05

  • Next message: Miroslaw Slawek Chorazy: "RE: Preventing multiple logins in 2003"
    To: Miroslaw Slawek Chorazy <mchorazy@depaul.edu>
    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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  • Next message: Miroslaw Slawek Chorazy: "RE: Preventing multiple logins in 2003"

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