
NPort 5000 Series User Manual
91
UDP Multicast
A multicast is a packet sent by one host to multiple hosts. In multicast mode, each host that belongs to a
specific multicast group will receive multicast packets for that group. For a host to be configured as a
multicast receiver over the Internet, the must inform the routers on its LAN. The Internet Group
Management Protocol (IGMP) is used to communicate group membership information between hosts and
routers on a LAN. The NPort 5000 Series supports IGMP version 2. The NPort 5100, NPort 5200, IA5000
Series do not support IGMP function.
Type the IP address (e.g., 239.1.1.1) assigned to the multicast group in the
Begin
column. The NPort will
automatically add the Group, and receive all packets from this group as required by the multicast function.