DHCP forwarding to more than one server

Discussion in 'Cisco' started by I.E., Feb 26, 2004.

  1. I.E.

    I.E. Guest

    I having a hard time trying to support a redundant DHCP network using
    Cisco's IP Helper feature on a Cat 6500. According to the Cisco TAC,
    any DHCP broadcast will be unicast to the machines specified by
    ip-helper directives. However, when I attempt to use this feature, it
    only unicasts the DHCP request to the first ip-helper and not any
    subsequent machines. Anyone know what might be wrong?

    Thanks



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    I.E., Feb 26, 2004
    #1
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  2. On Wed, 25 Feb 2004 16:46:22 -0800, I. wrote:

    >
    > I having a hard time trying to support a redundant DHCP network using
    > Cisco's IP Helper feature on a Cat 6500. According to the Cisco TAC, any
    > DHCP broadcast will be unicast to the machines specified by ip-helper
    > directives. However, when I attempt to use this feature, it only unicasts
    > the DHCP request to the first ip-helper and not any subsequent machines.
    > Anyone know what might be wrong?
    >


    Off the top of my head, no. How about posting a show version, interface
    config, debug ip udp and debug ip dhcp server packet from the MSFC.

    --
    Rgds,
    Martin
    Martin Gallagher, Feb 26, 2004
    #2
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  3. In article <>,
    I.E. <> wrote:
    >
    >I having a hard time trying to support a redundant DHCP network using
    >Cisco's IP Helper feature on a Cat 6500. According to the Cisco TAC,
    >any DHCP broadcast will be unicast to the machines specified by
    >ip-helper directives. However, when I attempt to use this feature, it
    >only unicasts the DHCP request to the first ip-helper and not any
    >subsequent machines. Anyone know what might be wrong?


    why not use the network broadcast address for the
    ip helper address - this way it'll go to all DHCP servers

    alan
    Alan Strassberg, Feb 27, 2004
    #3
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