基于IPSec的虚拟专用网的应用

The Virtual Private Network Based on IPSec

IPSec在Internet和专用内部网中属于IP层次的安全协议,IP层次上的安全对于网络安全是非常重要的。文章在简单介绍虚拟专用网VPN安全机制的基础上,详细分析了IPSec协议的体系结构I、PSec的工作模式和IPSec的实现方式,最后讨论了IP-Sec在虚拟专用网VPN中的应用。

IPSec is a security protocol that belongs to the IP level in Internet and the special- purpose internal network. The paper introduces the safety mechanism of the virtual private network （VPN）, and analyzes in detail the system structure of IPSec protocol, the working modes of IPSec and the realization of IPSec.