Configuring the client system manually requires lot of time and effort as we configuring it manually. You have to enter IP address manually for each client.
Now using DHCP protocol known as dynamic host configure protocol one can automatically configure the client system. This protocol can help to generate ip address from pool.

 
This DHCP protocol can be useful to configure DNS i.e. is domain name server, So you have to just using this DHCP it dynamically or automatically.

In lease time it configures the servers as well as gateways easily. So this tiny DHCP protocol can be used to configure automatically your IP address as well as gateways.