基于外网构建安全可靠的内网

Structure the security and reliable internal network based on the external network

通过对IPSec安全协议的分析,研究了基于IPSec虚拟专用网络VPN的安全性及如何利用公网构建安全可靠的内网,使校园网利用不可靠的公用互联网作为网络传输媒介,实现了专用网络的安全性,提高了网络的安全等级,具有一定的实用性。

Through the analysis of the safe protocol about IPSec, this paper studies the VPN＇s security based on the IPSec and how to structure the security and reliable internal network user the external network, then makes the campus net use the unreliable publicly - used intemet to work as the internet medium, so as to realize the security of the specified intemet and improve the net＇s security grade, having a certain practicability.