You may need to move a DHCP database at some point to another host for a number of reasons so I’ve put a simple guild together.
To move a DHCP database
1> Stop the Microsoft DHCP service on the existing host.
2> Copy the \System32\Dhcp directory to the new host that has been configured as a DHCP server.
3> Start the Microsoft DHCP service on the new host. The service automatically starts using the .mdb and .log files copied from the old server.
All done now reconcile the DHCP database.
1> In DHCP Manager, on the Scope menu, click Active Leases
2> In the Active Leases dialog box, click Reconcile.