Using 6500 as DHCP server for certain ports only

Discussion in 'Cisco' started by Roy Weekes, Apr 22, 2004.

  1. Roy Weekes

    Roy Weekes Guest


    Is it possible to restrict the DHCP server functionality of a 6500 (running
    native) to particular ports only? I have a couple of VLANs that use a
    stand-alone DHCP server through way of ip helper-address, but I want to use
    the switch as a DHCP server for a few machines connected to certain ports.

    The reason for this is that machines connected at a particular set of desks
    used by visitors need to use one of a particular range of addresses.
    Currently, they have to manually set the address, but it would be much
    easier for them if the switch could could assign them one. I can not create
    static mappings on the stand-alone DHCP server because the MAC addresses
    will change frequently as different visitors come and go.

    Roy Weekes, Apr 22, 2004
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  2. Roy Weekes

    Brian V Guest

    Heya Roy,

    Nope, can't do by way of restricting ports.

    What you should do is simply create another vlan with an acl on that
    interface only allowing them what you want them to access. You would
    obviuosly need to create another scope on your dhcp server for the "guest
    vlan". Very very common practice to have it done that way.

    Good luck!
    Brian V, Apr 22, 2004
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  3. Roy Weekes

    Geert Guest

    Yep. Put them in another VLAN and secure with access-lists.
    You can then make the 6500 a DHCP server for this vlan, or use the
    coorporate DHCP server using ip helper-address.

    1) This will only work if you C6500 has routing capability....of you
    will have to put another router in....

    Geert, Apr 23, 2004
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