Hi – I’m using udpsend and udpreceive for a network instrument.
New problem is that the other player is now on a network were he can’t
access the router. I guess I can check for open ports, but does any of
you know a way to see from the outside which local IP a computer is at –
and send to it?
> I guess I can check for open ports, but does any of
> you know a way to see from the outside which local IP a computer is
> at –
> and send to it?
Knowing the local IP of the recipient isn’t much use to you – the
address is, after all, local. You need to program the router so that
it forwards packets coming to its external IP on a particular port to
the particular local IP. (It’s usually called "Reverse NAT.")