论文部分内容阅读
随着INTERNET以及远程接入技术的发展，虚拟专用网（VirtualPrivateNetwork，简称为VPN）成为当前的热点技术之一，受到了人们的广泛关注。文章从安全性的角度出发，描述了VPN的基本概念，主要讨论了通过L2TP（LayerTwoTunnelingProtocol）实现VPN的基本原理，并分析了L2TP与IPsec相结合建立安全虚拟专用网的方法。
With the development of INTERNET and remote access technologies, Virtual Private Network (VPN) has become one of the hot technologies at present and has drawn people’s attention. The article describes the basic concept of VPN from the point of view of security, mainly discusses the basic principle of VPN implemented by L2TP (LayerTwoTunnelingProtocol) and analyzes the method of establishing secure virtual private network by combining L2TP and IPsec.