RE: Network "Change Management"

From: Evan Pierce (
Date: 09/16/04

  • Next message: "Re: Network "Change Management""
    To: "'Dave  Torre'" <>, <>
    Date: Thu, 16 Sep 2004 23:15:23 +0200


    Why not rather restrict DHCP to an allowed list of MAC addresses? And lock a
    specific port onto a specific MAC address or if you have too many users that
    are mobile (plug into many different ports) use EAP or 802.1x authentication
    from the switch to a Radius server and block things that way. Most modern
    switches will allow this.


    -----Original Message-----
    From: Dave Torre []
    Sent: 14 September 2004 07:53 PM
    Subject: Network "Change Management"

    Does anyone know of a Linux utility that can watch the MAC address tables in
    Cisco switches and alert admins as to when a new device has been plugged in?

    Basically, we have your standard client network with DHCP. Internet access
    is restricted to authenticated users, and so are the file shares.
    However, we've had a few instances where people just plug in their personal
    laptops which makes me very worried...

    Any thoughts/suggestions as to how I can monitor such events in real time?


  • Next message: "Re: Network "Change Management""

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