NAT在不同环境下企业网中的应用分析

The Application and Analysis of NAT in the Enterprise Network under Different Environment

网络地址转换(Network Address Translation,NAT)是企业边缘网常用的技术之一。针对典型企业网中不同的需求,分析了NAT在不同环境下的企业网络中的应用问题。针对企业向ISP申请不同的公网地址段,分析了不同的NAT技术在各类企业网络环境下的应用方法,并基于Cisco Packet Tracer软件进行了仿真,给出了相应的网络配置语句。仿真结果表明:不同类别的NAT技术既能满足企业不同的业务需求,又可减少企业的经济成本。

Network address translation（NAT） is one of the common technique in the enterprise edge network. According to the different requirements of the typical enterprise network, the application of NAT was analyzedin the enterprise network under different environments.In view of different public network addresses enterprisesapply to ISP, this paper analyzed the application methods of different NAT in various enterprise network environments. Then, it was simulated based on Packet Tracer Cisco software, and the corresponding network configuration statement was given. The simulation results showed that different types of NAT technology could not only meet the different business needs of the enterprise, but also reduced the economic cost of the enterprise.