Forward ip multicast packets based on what？
正确答案:
IP multicast packets is forwarded based RPF and multicast routing table.
After multicast packets received on the interface of a router，RPF check will be performed.If the packets pass through RPF check， the router will look up the multicast routing table for the packets and packets will be transfer out interfaces in the outgoing interface list of the routing table entry.
After multicast packets received on the interface of a router，RPF check will be performed.If the packets pass through RPF check， the router will look up the multicast routing table for the packets and packets will be transfer out interfaces in the outgoing interface list of the routing table entry.
答案解析:有
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