[email protected] wrote on 09/13/2006 07:13:55 AM:
> Only
> the socket that is bound to the group address to which the packet was
> sent should get it.
This is not true on any OS I'm aware of, including the
original sockets multicast implementation on early BSD.
Multicast group membership is per-interface, not per-socket.
Joining a group on any socket on the machine allows packets for that
group to be delivered on the interface where it was joined.
Delivery of packets to a socket is determined by the binding, and
INADDR_ANY means "any".
IPv6 behaves the same way.
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