通道模式下ESP实施方案的研究

针对智能小区网余与漫游主机之间通信的安全性问题进行探讨，分析了目前小区网络的建设现状．根据IPSec协议族的协议方案及工作方式，提出了一种简化且经济实用的解决方案．该方案利用通道模式下的ESP实现漫游主机和受保护网络之间的安全通信．整个系统由三大模块组成：用户管理模块、安全通道建立模块和数据处理模块．给出了简化后的安全通道建立流程．

Study of the implementation of ESP by tunnel mode

The security between road hosts and the local area ne tw ork was discussed, and the actual state of communication security in local area network was analyzed. Base on the IP Security protocols and the work modes, a pr oject was put forward to achieve the security communication between a road host and a security gateway by tunnel mode ESP. The format of IP data package in tunn el mode ESP was specified. The whole system was made up of three parts, and they were divided by their functions. The three parts were used for user management, building up security tunnel and data processing. Also the simplified process to build the security tunnel was illustrated.