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随着计算机网络的发展，网络越来越 复杂，网络管理任务也越来越重。根据统计当一个网络中包含的主机数超过１０００台的时候，网络完全靠网络管理员来维护基本上是不能有效地解决问题了。ＤＨＣＰ（Ｄｙｎａｍｉｃ Ｈｏｓｔ ＣｏｎｆｉｇｕｒａｔｉｏｎＰｒｏｔｏｃｏｌ ）是动态主机配置协议，动态主机配置协议能够动态地为主机分配ＩＰ地址，进行一些其他的网络设置，简化了用户主机的网络设置，方便了网络ＩＰ地址的管理。 但是，仔细研究发现普通的基于ＤＨＣＰ的网络，将ＩＰ地址动态地分配给主机，ＩＰ地址的信息只有ＤＨＣＰ服务器自己持有，当网络中的主机处于经常的变动的时候，将会引发新的问题。本文将从ＤＨＣＰ协议的工作原理入手，分析基于普通ＤＨＣＰ网络模型的不足之处，同时提出改进的方法，提出一种新的模型，并分析新模型的效益。
With the development of computer networks, the network is more and more complicated, and the tasks of network management are getting heavier and heavier. According to statistics when a network contains more than 1000 hosts, the network administrator to maintain the network simply can not effectively solve the problem. Dynamic Host Configuration Protocol (DHCP) is a dynamic host configuration protocol. Dynamic Host Configuration Protocol dynamically allocates IP addresses to hosts and makes some other network settings. This simplifies the network settings of hosts and facilitates the management of network IP addresses. However, careful study found that ordinary DHCP-based network, the IP address dynamically assigned to the host, the IP address of the information only DHCP server itself, when the hosts in the network is constantly changing, it will trigger a new problem . This article will start with the working principle of DHCP protocol, analyze the shortcomings based on the common DHCP network model, propose the improved method, propose a new model and analyze the benefit of the new model.