The mrpeach [udpsend] outputs its ip and port on the second outlet on 'connect', while the[ [udpreceive] object outputs the ip and port of each received datagram, so using both you should be able to do what you want. A [udpsend] normally has a different port number to the one it sends to, but a [udpreceive] in the same Pd process can still receive on that port.
Martin
On Tue, Jun 1, 2021 at 4:57 PM Roman Haefeli reduzent@gmail.com wrote:
Hey all
I would like to open a datagram listening socket and be able to send back to clients from which I received messages. It seems both [netsend -u] and (obviously) [netreceive -u] actually can open a listening socket. However, [netreceive -u] can't send anything back. While [netsend -u] can send messages back, it doesn't show the source address of the incoming packets. And using [netreceive -u] for receiving and [netsend -u] for sending back doesn't work, because for the packets to arrive at the client, they need to be sent from the same port that is already occupied by [netreceive].
Yet, as long as I used TCP and iemnet, this was possible. However, as far as I can tell, it's not possible with UDP, neither with iemnet nor with Pd's built-in classes.
Is that something worth to make a feature request for?
While we're at it, it seems [netreceive] (in TCP mode) can only send back to all connected clients, but not to a specific one.
Roman _______________________________________________ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list