32.3.2 Layer 2 forwarding of IPv4 multicast packets

Layer 2 forwarding within VLANs receiving IPv4 multicast packets is performed based on MAC address. Layer 2 forwarding based on IGMP snooping results is performed for all ports that receive IGMP Report (membership request) messages whose IP multicast address is mapped to the same MAC address.

Since both the multicast MAC addresses 224.10.10.10 and 225.10.10.10 described in "32.3.1 Learning MAC Addressing (1) Registering Entries" are 0100.5E0A.0A0A, when multicast data addressed to 224.10.10.10 is forwarded to Layer 2, the multicast data addressed to 224.10.10.10 is also forwarded to the port that received IGMP Report message to 225.10.10.10.