1, install the DHCP server 
2, fill in information such as start and end IP address; no error checking under the direct installation!
3, installed below, analysis of the function!
Address pools: DHCP allocation range and scope exclusion
remain: there is a demand to retain a particular server's IP address 
scope: fill in the domain of parameter values such as gateways, etc.
server option: Set parameters for the functioning of the entire domain; for example, the basic DNS all the same, you can fill in this option! 
Scope