基于ACE的UDP穿透NAT技术原理及实现

The Realization of UDP Traversal Through NATs Based on ACE

NAT的应用使人们在只拥有私网IP的情况下也能访问互联网,解决了公网IP数量有限、但需联网计算机数量日益上升而导致IP短缺的问题,但同时也造成了私网计算机之间无法通信的事实;如何穿透NAT、实现私网计算机之间的通信探讨也就应运而生。该文对UPD穿透NAT技术原理进行深入探讨并结合ACE框架分析了实现该技术的服务器和客户端代码。

With the application of NAT,people who have only private IP can also visit the Internet,solved the problem between the larger need of IP and the lesser of public IP,but also caused the network communication problem of the hosts in different private networks.This paper analyze the principle of UPD Traversal through NATs and the program code of sever and client based on ACE.