DHCP server filter on uBR7114E

Discussion in 'Cisco' started by Kokkeli Kallila, Apr 25, 2007.

  1. Hi,

    I have Cisco uBR7114E working as CMTS. I use external DHCP server
    which is plugged in to same switch with CMTS. CMTS is set to bridge
    all the connections.

    However, I have a problem that cable modem users can create their own
    DHCP server, which starts to serve other
    cable modem hosts/users and ignore our legimit DHCP server.

    Is there a command which would filter DHCP server traffic from the
    cable modems and only allow my external server work as real DHCP
    server?
     
    Kokkeli Kallila, Apr 25, 2007
    #1
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