Multicast Proxy in IPv6/IPv4 Transition

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Last updated 2013-04-25 (latest revision 2012-10-22)
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During the long co-existing period of IPv6 and IPv4, the interoperation between IPv6 network and IPv4 network is essential. Multicast services across IPv6 and IPv4 networks are also needed. Besides the packet-based multicast translation mechanism, this document describes a multicast proxy solution. The solution is a multicast deployment for transition scenario. It does not propose any new protocol or protocol modification/extension for multicast. The multicast proxy is deployed at the border of IPv6/IPv4 networks. It is mainly based on content cache. Without packet-based translation, it acquires the content data from IPvX network, caches the data, and multicasts the data in IPvY network. It acts as a multicast leaf in the IPvX network where the data source locates while acting as a multicast source in IPvY network where the multicast client locates.


Sheng Jiang (
Dujuan Gu (
Yu Fu (
Bing Liu (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)