用NAT技术构造小区智能化系统安全体系  

Design of Security Architecture of District Intelligent System Based on NAT

作　　者：张选芳[1] 

机构地区：[1]中国民航飞行学院计算机科学与工程系,四川广汉618307

出　　处：《四川大学学报（工程科学版）》2003年第6期101-105,共5页Journal of Sichuan University (Engineering Science Edition)

摘　　要：以基于宽带网络的小区智能化系统入手,给出了安全系统的设计目标及整体构造方案。概要介绍了网络地址转换(NAT)的基本原理,着重对端口地址转换技术进行了分析与设计,构造了动态端口映射的Hash函数;同时实现了反向端口地址转换。最后,根据动态端口转换方案,在小区智能化系统中实现了系统的负载平衡与容错。Start from District Intelligent System based on broadband network, the design object and whole construct schemes of its security system is presented. The fundamentals of Network Address Translation are introduced.The analysis and design of Port Address Translation are mainly discussed. The Hash Function of Dynamic Port Address Translation(DPAT) is constructed,and the module of Reversed Port Address Translation(RPAT) is presented. According to the scheme of DPAT, a practical implementation of loading balancing and fault tolerance is presented.

关 键 词：网络地址转换 端口地址转换 负载平衡 容错 虚拟服务器 小区智能化系统 NAT 安全体系 

分 类 号：TU994[建筑科学—市政工程] TP393.08[自动化与计算机技术—计算机应用技术]