Re: DHCP server - map to host names?

From: Dave Miner (dave.miner@sun.com)
Date: 04/17/03

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    From: Dave Miner <dave.miner@sun.com>
Date: Thu, 17 Apr 2003 13:11:57 -0400

    John Howells wrote:
    >
    > LHradowy wrote:
    >
    >>How would I set up the DHCP server to map ip's to the host names, currently
    >>I am mapping to the MAC address. I am running currently SUN 5.7
    >
    >
    > If the question is
    >
    >
    > how can I set up the DHCP server so that a machine that has its name set
    > to 'fred' always has the address '1.2.3.4' without having to set a
    > static MAC address allocation in the network table, and so that even if
    > the MAC address of 'fred' were to change it would still have the address
    > '1.2.3.4' allocated
    > <<
    >
    > I think the answer is you cannot. The DHCP server can only allocate
    > dynamic or static addresses, and the latter can only be done against MAC
    > address.
    >

    This isn't quite true, in that the DHCP server allocates address to a client's
    identifier; usually this is defaulted to being based on the MAC address, but
    some clients (such as Solaris and the ISC client for Linux and other Unixes) can
    be set to send an arbitrary string as the client identifier, and this could be a
    hostname in those cases.

    Dave

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