摘要
网络地址转换是解决IPV4地址紧缺的有效方法,但对P2P技术的应用产生了负面影响。该文分析网络地址转换对P2P网络产生的负面影响,研究NAT端口映射类型及其检测方法,给出了一种用于P2P网络的穿越NAT协议。
Network Address Translation（NAT） is a method by which IP addresses are mapped from one realm to another,in an attempt to provide transparent routing to hosts.It is an efficient solution for the lack of IP address.However,it has negative impact on P2P.The negative impact on P2P caused by the NAT is pointed out.And a method of testing NAT port mapping is presented.A new NAT traversal protocol under P2P network environment is designed.The protocol describes how to establish direct UDP communication between two NAT computers.The performance of the network connectivity is improved.
出处
《计算机工程》
CAS
CSCD
北大核心
2008年第12期112-113,131,共3页
Computer Engineering
基金
黑龙江省自然科学基金资助项目(F2004-06)
关键词
P2P网络
网络地址转换
端口映射
P2P network
Network Address Translation（NAT）
port mapping
