Hi, how do I broadcast a UDP packet? I set the BROADCAST option on the socket (do I really have to) and then use the address x.y.z.255 to broadcast it. The IP address is correctly set. I use it this way: socket_instance.sendTo(char[] packet, new InternetAddress(addr, port));
It returns -1 bytes sent, which I consider as an error. What am I missing? Thanks in advance, Dominik