METHOD FOR MULTICAST FORWARDING AND MULTICAST ROUTER

摘要

A method for multicast forwarding which is used in the multicast among different internet protocol networks is disclosed. The method includes the following steps: receiving the first multicast group joining request from the first internet protocol network which the host is located in; the first multicast group joining request is sent by the host when it requests to join the multicast group which is corresponding to the multicast source located in the second internet protocol network; joining the multicast group by the way of acting as the agent of the host; receiving the multicast data of the multicast group from the second internet protocol network and sending the multicast data of the multicast group to the host. The corresponding computer program product, computer readable storage medium and multicast router are also disclosed. The multicast source can be used, wherein the multicast source and the host are located in different internet protocol networks.