详解公网Ip和私网ip,详解网络分类ABC
https://blog.youkuaiyun.com/gui951753/article/details/79210535
NAT(地址转换技术)详解
https://blog.youkuaiyun.com/gui951753/article/details/79593307
https://blog.youkuaiyun.com/gui951753/article/details/79210535
https://blog.youkuaiyun.com/gui951753/article/details/79593307