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On 2013-07-03 15:58, Antoine Villeret wrote:
sorry I was not clear enough
I need a server : listening on one port and sending data to client on different port i first use only udpsend/udpreceive and the 'server' was sending to a multicast group, each client join this group and receive all the data this is not possible with unicast while I can't listen several time on one port but multicasting need a working network interface (the computer need to be in a network)
i don't think so. but multicast doesn't solve your problem, just as broadcast doesn't solve it. *cast works on an the IP-level, it allows you to address multiple hosts with a single packet. but afaiu, you want to address multiple applications on a single host, which is not so trivial, as each application needs a separate (receiving) port. and there is no "multiportcast".
so on a single host you have to address each application directly.
fgmasdr IOhannes