broadcasting using std.socket

Dominik Taborsky bremby at
Sat Dec 12 11:13:36 PST 2009


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

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