The most significant feature of DHCP is the dynamic address assignment. Apart from the IP address, the DHCP packet also provides other configuration information such as the subnet mask to the client. This enables the client to automatically configure itself to connect to the network without any user intervention. This significantly reduces the workload of the system administrator.
The system administrator can configure the settings for TCP/IP so as to enable a system to automatically configure itself or to force manual configuration of the settings.
Figure 14.4 shows a dialog box that allows a system administrator to configure DHCP settings in a Windows environment.