常见的小型网络中（例如家庭网络和学生宿舍网），网络管理员都是采用手工分配IP地址的方法，而到了中、大型网络，这种方法就不太适用了。在中、大型网络，特别是大型网络中，往往有超过100台的客户机，手动分配IP地址的方法就不太合适了。DHCP（DynamicHostConfigurationProtocol）为我们解决了这一难题. -Common small networks (such as home networking and student dormitory network), network administrators are based on the method of manually assigned IP addresses, but to the medium and large networks, this method is not applicable. In the medium and large networks, especially for large networks, often more than 100 client machines, manually assigned IP addresses is not a suitable method of. DHCP (DynamicHostConfigurationProtocol) for us to solve this problem.