How to enable DHCP service through NAT?

Start -> Programs -> Administrative tools -> RRAS -> IP routing -> Right click on NAT
-> go to properties -> Click on Address assignment -> Select the option automatically
assign IP address by using DHCP
Note: If don’t want to use your NAT server to assign IP addresses clear the check box.
Note: NAT server contains at least two NIC, because one for internal IP address and another one for external (Public IP).