IPv6/IPv4双栈城域网中DNS系统的部署与应用

Deployment and Application of DNS System in IPv6/v4 Dual Stack MAN

DNS系统即域名解析系统,是互联网的关键系统之一。大型互联网公司通常使用容量较大的内容分发网络,用户只能通过DNS系统获取IP地址。随着IPv6网络的大规模部署,DNS系统需要同步改造。基于此,简要介绍了DNS系统和IPv6相关知识,阐述了城域网中IPv6的部署方式,分析了DNS系统在城域网IPv6浪潮中的应用,并总结了IPv6/IPv4网络的多种场景,实际测试了DNS64+NAT64的效果。

DNS system,namely domain name resolution system,is one of the key systems of the Internet.Large Internet companies usually use content distribution networks with large capacity.Users can only get IP addresses through DNS system.With the large-scale deployment of IPv6 network,DNS system needs to be reconstructed synchronously.Based on this,this paper briefly introduces the knowledge of DNS system and IPv6,expounds the deployment mode of IPv6 in MAN,analyses the application of DNS system in the wave of IPv6 in MAN,summarizes various scenarios of IPv6/IPv4 network,and tests the effect of DNS64+NAT64 in practice.