Posted on 2006-05-12
Last Modified: 2010-04-18
We are moving DHCP to a different server but not transfering the database.  The scope, reservations etc will be exactly the same.

We are changing the scope options router, WINS server etc on the new DHCP service.

How can I ensure that the PC's that are switched on renew the lease but get the new scope options ?
Question by:MarionTaylor
    LVL 48

    Assisted Solution

    Hi MarionTaylor,

    you may have to cancel their current reservations and let them pick up a new one when they log on
    LVL 2

    Accepted Solution

    1.Configure the new DHCP Scope on the different system
    2. De activate the fist scope, then enable the newly created scope
    3. On the client systems run cmd (command) and type ipconfig / release
    then type ipconfig /renew
    (these commands are for windows XP, For windows 98 type ipconfig /release_all, and ipconfig /renew_all)

    Otherwise if the change is done at an off peak time when the client systems are off, then the logon process should assign them the new dhcp scope, so long as the old scope is removed (or deactivated)
    LVL 9

    Assisted Solution

    or, at the server, disconnect all leases. select them all in the database, right click and choose delete. this will delete them and force the client to attempt to get a new lease, at which point they can get one from the newly configured server.

    Good Luck,
    LVL 2

    Expert Comment

    nice one dooleydog!

    but please remember to demote the first DHCP, and activate the New one
    LVL 48

    Expert Comment

    similar to what i posted above yes?

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