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针对很多高校新建了一些IPv6网络而不能实现与原有IPv4网络通信的问题,引入NAT-PT,并与应用层网关(主要为DNS-ALG)结合,实现了IPv6网络和IPv4网络间的互通。通过分析NAT-PT和DNS-ALG的工作原理,阐述了IPv6侧主机发起通信和IPv4侧主机发起通信的工作过程,通过引入NAT-PT簇和修改DNS服务器,从而解决了2个网络的通信质量和负载平衡问题,并通过试验进行验证。
Aiming at the problem that many universities newly built some IPv6 networks and can not communicate with the original IPv4 network, NAT-PT is introduced and combined with the application layer gateway (mainly DNS-ALG) to realize the intercommunication between the IPv6 network and the IPv4 network. Through the analysis of the working principle of NAT-PT and DNS-ALG, the process of initiating communication between IPv6 host and IPv4 host is described. By introducing NAT-PT cluster and modifying DNS server, the communication quality of the two networks is solved And load balancing issues, and tested to verify.