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)

antoine

--
do it yourself
http://antoine.villeret.free.fr

2013/7/3 Martin Peach <martin.peach@sympatico.ca>

On 2013-07-03 06:37, Antoine Villeret wrote:

Hi Martin,

thanks for that,
but I don't know how many clients there are
so it's quite difficult to figure out port number in this case.

My problem is that I can't listen several time on the same port with
[udpreceive] but with multicasting, that's why I switched to [udpserver].

Not sure what you want to do here. Do you want several [udpreceive]s listening to the same port, or a single [udpreceive] that listens on multiple ports, or a single [udpreceive] that listens on the same port for messages from multiple sources? Or something else...

Martin