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DHCP Windows 2000: How to manually change the lease status?

Posted on 2007-10-04
Medium Priority
Last Modified: 2013-12-05

Background: The environment consists of DHCP Cluster under Windows 2000 Server with two nodes providing only reservations to many client devices. No dynamic submission is in place. For clenaup purposes the active adress leases must be switched to inactive to identify the client devices that really need the reservations. I'm aware that an ipconfig /release command on the lcient devices will bring the desired result but it's not an option due to the size and the diversity of the client devices.

Goal definition: How can the active reservations viewble in the adress leases pane be changed easily and from a central location (e.g. DHCP MMC)?

Any solution is appreciated and thanks in advance

If any additional information is necessary don't hesitate to contact me.

Elmar Hagel
Question by:elmhagel
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Author Comment

ID: 20012761
It's more complex and complicated as initially expected.
LVL 70

Accepted Solution

KCTS earned 1500 total points
ID: 20012844
You can't change the lease information interactivley like this - the lease duration can be set on the scope properties tab, (as I am sure you are aware), but once a lease is negotiated with a client there is no way to change that without releasing and renewing the lease.

If your aim to to determine which computers are negotiating leases then look in the DHCP logs - they are stored in %windir%\System32\DHCP and the logs are written on a rolling 7 day scheme DHCPSvrLog-Mon, DHCPSvrLog-Tue etc.
LVL 70

Expert Comment

ID: 20014678
... alternativley set a long lease - say 30 days
If the any reservations are not taken up then they will be shown as inactive in the DHCP console. All those that have been used within the lats 30 days will show as active.

Author Comment

ID: 20039373
Thanks KCTS. The DHCP logs solved my issue. The lease time was set to 8 days and the logs showed up one week thus I was able to identify with the logs which reservations were really active.

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