摘要： 隧道技术是建立虚拟专用网络《ＶｉｔｔｕａｌＰｒｉｖａｔｅ Ｎｅｔｗｏｒｋ）的核心技术。详细讨论了ＶＰＮ常用的两种隧道协议ＰＰＴＰ和ＩＰｓｅｃ，并做了详细的比较分析。最后给出了作者对ＶＰＮ技术发展的展望。

关键词: 虚拟专用网络, 隧道技术, 点到点的隧道协议, IP安全协议

Abstract: Tunneling is the key technology of building virtual private network. This paper detailly discusses two tunnel protocol used to build virtual private network .Then,the author makes a compare between P.PTP and IPsec. In the end of this paper,the author gives his prosective of the development of VPN technology.

中图分类号: 

• TP393