NAT地址转换浅析

Analysis of NAT Address Translation

NAT是IETF制定的一个标准,它允许一个局域网使用一个或多个公用IP地址访问Internet。顾名思义,NAT是一种可以把内部私有IP地址转换成合法网络IP地址的技术。因此可以认为,NAT在一定程度上,能够有效地解决公网地址不足的问题。分析NAT的工作过程、NAT的种类及NAT的特点。

NAT,or Network Address Translation,is a standard established by IETF(Internet Engineering Task Force),which allows a LAN to access the Internet using one or more public IP addresses.As the name implies,NAT is a technology that can convert internal private IP addresses into legitimate network IP addresses.Therefore,NAT can effectively solve the problem of inadequate public address to a certain extent.Mainly analyses the working process of NAT,the types of NAT and the characteristics of NAT.