【摘要】 虚拟专用网是一项新的网络技术 ,它可以利用公共网络建立企业内部网 ,不仅能减少企业投入费用 ,还保证了数据的安全性。讨论了虚拟专用网的定义、协议及安全问题 ,并详细说明了虚拟专用网技术在建设工程信息网中的应用更多还原

【Abstract】 The Virtual Private Network is a new network technology which can use public network to construct Intranet.It can not only reduce the expense of industry,but also ensure data security.This paper discusses definition,protocol and security of Virtual Private Network,and discusses the application of Vitual Private Network in construction engineering information network in detail.更多还原