title: "Address already in use": I'm misunderstanding UDP
body: <p>Is it possible for two or more programs to monitor UDP packages on a single port?  We have a device that converts RS-232 data to UDP on port 55110, but it appears I can only have one listener running on a given computer. Attempts at a second cause "Address already in use". Apparently there is some other program on the computer listening, because REUSE => 1 doesn't help. Multiple users would like to sample the data. I apologize for so basic a question.</p>