高性能网络防火墙关键技术的研究

Research of the Critical Technology on High Function Network Firewall

网络防火墙的主要功能是实现内部网络和外部网络的访问控制策略,利用它既可以阻止非法的连接、通讯,也可以阻止外部的攻击.本文以设计高性能网络防火墙为背景,介绍了网络防火墙的工作原理、体系结构,并对网络防火墙的几种常见类型进行了结构与性能的比较,强调了一个高性能网络防火墙的设计在信息的加密技术和安全协议二方面的重要性.

The major function of network firewall is realizing the internal network and the visit control tactics of outside network, and uses it can prevent illegal connection and communication, but also can prevent the outside attack. This text is the background with the high function network firewall of design, and introduced the work principle of network firewall and the system structure and has carried on the structure and the comparison of function to several kinds of common types of network firewall,and has stressed designing at the enciphering technology of information and the importance of two aspects safe agreement of high function network firewall.