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But how do you determine, if the router that box is connected to supports multicast?
– Nils
Commented Dec 1, 2011 at 20:26
1

Multicasting -- the sender sends a single datagram from its unicast address to the multicast group address and intermediary routers take care of making copies and sending them to all receivers that have joined the corresponding multicast group.
– Nikhil Mulley
Commented Dec 2, 2011 at 4:31
3

If Yes, router needs to support the multicasting then. However, for senders/receivers it works on IGMP and for routers, its Protocol Independent Multicast (PIM). Router that supports PIM, usually enabled, and multicast group -- 224.0.0.0/4. Try putting up another pc listening in group at other end & send data to multicast group & check if receiver at the otherend receives data.Ify,router network does support multicasting.Few tools online: imj.ucsb.edu/mcast_detective (windows)
– Nikhil Mulley
Commented Dec 2, 2011 at 4:31

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