基于网关的IPv4-IPv6组播过渡技术.pdf

33 13 2007 7 Vol.33 No.13 Computer Engineering July 2007 ·· 2007 A TP393.02 IPv4-IPv6 ( 210096) CERNET2 IPv4 IPv6 IPv6 IPv6 Netfilter IPv4-IPv6 Multicast Transition Technique Based on Gateway XU Chunrong, CAO Zheng, YANG Xianfeng (Department of Computer Science and Engineering, Southeast University, Nanjing 210096) AbstractMore and more people pay attention to multicast because of its advantages in saving bandwidth and lightening servers’ load. Now CERNET2 has accelerated the transition from IPv4 to IPv6. The transition of multicast must be a hot spot. The article introduces a multicast transition method based on gateway. The model design and its implementation are showed. The test result indicates that this model is suitable to the transition of multicast. Key wordsmulticast; IPv6; transition; gateway; Netfilter CERNET2 IPv4 IPv6 (designated router, DR)RP (rendezvous IPv6 IPv6 point)[3] 1MTGIPv6 RP IPv4 IPv6 RP J IPv6 IGMP (NAT-PT[1]) A B H K MLD MTG MLD [2] C RP