Moving DHCP from one server (2003-2012) to another, preserving all settings AND MOST IMPORTANTLY leases!
1. Log on to the source DHCP server by using an account that is a member of the local Administrators group.
2. Click Start, click Run, type cmd in the Open box, and then click OK.
3. Type netsh dhcp server export C:\dhcp.txt all , and then press ENTER.
Configure the DHCP server service on the new server.
1. Click Start, click Administrative Tools, click Server Manager. If needed acknowledge User Account Control.
2. In Roles Summary click Add Roles, click Next, check DHCP server, and then click Next.
Import the DHCP database
1. Copy the exported DHCP database file to the local hard disk of the new server.
2. Verify that the DHCP service is started on the new server.
3. Click Start, click Run, type cmd in the Open box, and then click OK.
4. At the command prompt, type netsh dhcp server import c:\dhcp.txt all , and then press ENTER, where c:\dhcp.txt is the full path and file name of the database file that you copied to the server.