GRE与IPSec VPN工程应用研究

GRE and IPSec VPN Engineering Application Research

本文分析了GRE隧道与IPSec VPN的主要技术,阐述了GRE与IPSec VPN的特点与工程应用场景,并且分析了两者的应用缺陷,提出了IPSec VPN与GRE隧道结合使用的特点与应用场景,并且阐述了GRE over IPSec VPN与IPSec VPN over GRE的差别。

This paper describes the main technologies and the features and applications defects of IPSec VPN and GRE tunnel.This paper presents an application scenario which uses IPSec VPN and GRE together.And at last,this paper describes the difference between GRE over IPSec VPN and IPSec VPN over GRE.