I am tring to to implement STUN like app.
the first stage is without NAT.
I am using one socket for both recieving and sending with RecvFrom and SendTo.
I have 2 symbian phone use as peer and PC server.
both phone connect the server and retrive the addresses of each other.
then I start Ping the other peer.
for all of this I use the socket.
when both peer uses the same local port (I Bind to port first to listen) I get the pings.
If I don't Bind, or bind with port = 0 (i.e. retrive random port)
I don't recieve the ping?