Change the Reserved IP Address for a Client
Applies To: Windows Server 2008
You can use this procedure to change the reserved IP address for a client.
Membership in the Domain Admins group, or equivalent, is the minimum required to complete this procedure.
To change the reserved IP address for a client
In the console tree, click Reservations.
In the details pane, select the reserved client for which you want to change the IP address.
To delete the current reservation, on the Action menu, click Delete.
Add a new reservation in DHCP that uses the new IP address for the client.
The IP address in an existing client reservation cannot be modified directly. You must delete the existing reservation and add a new one.