[ECOS] Re: Why does sending multicast UDP require a gateway?
Wed Mar 30 15:00:00 GMT 2011
> It's being sent via a socket that's bound to a specific interface, so
> I wouldn't think that would be a problem.
Maybe try it anyway?
> I can see that if you're sending from an unbound socket, you might
> want a way to specify which interface to use for sending multicast
> packets. But without such a route, the only thing that makes sense to
> me is "send it out all of them".
And on a multi homed machine that might result in the group receiving
two copies of the packet when both multicast routers pick it up and
send to the RP.
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