【摘要】 虚拟专用网 (VPN)通过在公共网络上建立虚拟的连接来传输私有数据 ,用网络隧道协议来保证数据的安全性。从 VPN的产生入手 ,论述了 VPN的实现原理 ,并对其应用作了具体的分析更多还原

【Abstract】 By the technology of VPN, Virtual links can be created on public networks to transfer private data. Tunneling protocols are used to ensure the security of data. Starting with the origin of VPN, the paper expounds the implementation of VPN, and analyzes the application in details.更多还原