vpn技术分析与实现(毕业论文).doc

VPN技术分析与实现
15900字    30页

摘要：随着Internet已成为全社会的信息基础设施，企业端应用也大都基于IP，在Internet上构筑应用系统已成为必然趋势，因此基于IP的VPN业务获得了极大的增长空间。本文介绍了虚拟专用网的技术原理和特点，以及利用VPN技术构建企业虚拟专用网的优势，提出利用公网的资源作为企业各级单位间传输信息的通道，在建设内部网实现信息安全共享的同时降低建设和维护成本，因此具有很好的应用前景。文章首先对VPN的技术的发展、优点等进行了分析；其次阐述了VPN的解决方案；最后，结合一个证券公司的实例说明企业VPN网络的具体实现。
关键词：虚拟专用网；虚拟局域网；网络安全；隧道技术
VPN technology analysis and implementation
Abstract: As the Internet has become a society-wide information infrastructure, enterprise-based applications are mostly IP, to build applications on the Internet have become an inevitable trend, so the service which based on the IP-VPN was great room for growth. This paper presents a virtual private network technology principles and characteristics, and presents the advantages that the companies use the VPN technology to build the virtual private network, by using public networks at all levels of resources as a business unit of the channel to transmit information, in building internal networks to share information security At the same time reduce the cost of construction and maintenance, so VPN has good prospects. The article first tell us something about the development of technologies VPN and other advantages of an analysis ; and secondly about the VPN solutions; Finally, it combinates a securities company examples of the specific enterprise VPN network to achieve.
Key words: VPN; VLAN; network security; tunnel

 
目　录
1 VPN技术概述 1
1.1 VPN产生的背景 1
1.2 VPN的定义 1
1.3 VPN的特点 2
1.4 VPN带来的好处 3
2 隧道技术 7
2.1 概述 7
2.2 隧道协议 7
2.3 隧道技术实现过程 10
2.4 隧道中的源和目标IP地址 11
3 VPN中的安全技术 12
3.1加解密技术 12
3.2密钥管理技术 12
3.3身份认证技术 13
4 VPN解决方案 14
4.1远程访问虚拟网 14
4.2 企业内部虚拟网 15
4.3 企业扩展虚拟网 16
5 VPN网络方案设计 17
5.1 需求分析 17
5.2 拓扑设计 18
5.3 设备选型 18
5.4 IP地址分配 20
5.5 权限设置 20
5.6 具体配置 21
结束语 27
参考文献 28
致    谢 29