VPDN技术的发展与应用研究

On the Trend and Applied Research of the VPDN

VPN具有建网快速方便,降低建网投资,节约使用成本,简化用户对网络的维护及管理工作等优势,在安全性能方面VPN主要采用国际标准的网络安全技术,通过在公用网络上建立逻辑隧道及网络层的加密,避免网络数据被修改和盗用,保证了用户数据的安全性及完整性。但VPDN在推广上存在一些问题。本文就VPDN的发展趋势、实现方案及需要解决的问题作一些探讨。

VPDN has the following advantages: quick and easy in building the network; cutting down the investment in building a network; reducing its operating cost; simplifying the procedure of its maintenance and management. A logic tunnel on the public route can be built and network layers can be locked in cipher through the application of the international standard network security technology so that the data won' t be altered and usurped. It can also guarantee the security and integrity of users data.However some problems remain unsolved in the widespread of VPDN. The author intends to discuss about the trend, scheme, the problems unsolved of UPDN.