基于NAT-PT转换网关的DNS-ALG研究与实现  

Research and Implementation of DNS-ALG Based on NAT-PT Transition Gateway

作　　者：关瑞东[1] 郭春生[1] 

机构地区：[1]杭州电子科技大学通信工程学院,杭州310018

出　　处：《电子器件》2009年第1期125-129,共5页Chinese Journal of Electron Devices

摘　　要：NAT-PT只能提供从IPv6到IPv4的单向连接,要实现从IPv4外网到IPv6网络的访问,这就必须结合DNS-ALG进行域名支持。提出了一种IPv4/IPv6转换网关的设计方案,在NAT-PT的基础上封装了一个应用层网关DNS-ALG。在应用层上实现了域名访问的透明性,从而屏蔽了网际协议不同对上层的影响,实现了IPv4与IPv6的双向连接。DNS-ALG是实现IPv4与IPv6网络双向访问的关键技术。NAT-PT can only provide the connection from IPv6 to IPv4 in one direction,In order to realize IPv4 network start communication with IPv6 network,DNS-ALG must be included to support name visiting.The article brings forward the scheme of IPv4/IPv6 translation gateway based on NAT-PT which packages an application layer gateway called DNS-ALG,realizes transparent communication in the application layer,shields the impact on the upper layer caused by different internet protocols,achieves the two-way connections between IPv4 and IPv6.DNS-ALG is the key to realize Bi-directional visiting.

关 键 词：网络地址转换协议转换 应用层网关 应用层网关域名代理 网络地址转换 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]