Good morning,
I got the impression that the socket option IP_MULTICAST_LOOP has
no effect on 4.0-STABLE. Multicast packages are not looped back
to the originating host. Looping back should be the default
behavior of the socket API (Stevens, Unix Network Programming).
I tried to explicitly switch it on with IP_MULTICAST_LOOP, but
it didn't work either. Of course the socket is subscribed to
the group (IP_ADD_MEMBERSHIP).
Am I missing something or should this be a bug?
Bjoern
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