Example closes immediately

[t3h2mas]

When running the example under examples/basic_udp.go the program immediately closes.

Any ideas? Should I be doing something extra to add something to the waitgroup?

System: Mac 10.13.1
Go version: 1.9.1

[wildsurfer]

same here

[danyanya]

@t3h2mas @wildsurfer You need to run example with sudo (because of port number < 1000) or use a different port.