DHCP的安全问题与防范措施.docx

新疆农业大学科学技术学院课 程 论 文题 目: DHCP的安全问题与防范措施 课 程: 计算机网络 姓 名: 王志强 专 业: 机械设计制造及自动化 班 级: 机械112 学 号: 115236203 座位号: 03 指导教师: 王红梅 职 称: 讲师 20 14 年5 月 25 日DHCP的安全问题与防范措施作者：王志强 指导老师：王红梅摘要 ：随着互联网的普及,人们的工作、学习和生活与网络联系越来越紧密,搭建了许多不同的网络,如企业网、校园网和城区网等。而我们知道,在TCP/IP网络应用中,网络用户PC只有在获取了一个网络地址,才可以和其他的网络用户进行通讯。在联网的实际应用中,我们经常会遇到一些问题:比如IP地址发生冲突、由于网关或DNS服务器地址的设置出现错误而无法访问网络中的其他主机、由于计算机的位置经常变动而不得不频繁地修改IP地址。DHCP 技术可以有效地解决目前IP 地址资源不足和无线网络用户的移动性，并极大地减轻大型网络管理员的工作量，有利于快速地搭建一个大型网络或修改其网络配置。但由于DHCP 协议在设计时未考虑安全的因素，在使用DHCP 服务器为网络地址和参数的网络中面临着很多DHCP 威胁，所以对DHCP 安全性的研究具有重大意义。本人即围绕DHCP 网络协议的安全性问题展开集中讨论研究，包括归纳DHCP 网络安全的主要威胁、提出了消除威胁的策略建议、用对比的方式挖掘减少威胁的方法以及安全实现。关键词：DHCP；TCP/IP;安全性；网络协议；解决Security problems and preventive measures of DHCPName:Wang ZhiqiangGuidance teacher:Wang HongmeiAbstract: with the popularization of Internet, peoples work, study and life increasingly close ties with the network, set up a number of different networks, such as enterprise network, campus network and public network etc.. As we know, in TCP/IP network application, PC network user only in the acquisition of a network address, can and other network users to communicate. In the practical application of networking, we often encounter some problems: for example, the IP address conflict due to the gateway or the address of the DNS server setup errors and cannot access any other host in the network, because of the position of computer change frequently and frequently had to modify the IP address. DHCP technology can effectively solve the problems of shortage of IP addresses and mobility of wireless network user, and greatly reduce the workload of a large network administrators, for fast set-up of a large-scale network or modify its configuration. But because the DHCP protocol does not take into account the factor of safety in the design, use DHCP server to the network address and the parameters of the network are facing a lot of DHCP threat, so the research on the security of DHCP is of great significance. Safety iss