test-dgram-bind.js

var dgram = require('dgram');

var a = dgram.createSocket('udp4');
a.on('message', function(m) {
  console.log('a received ' + m);
});
a.bind(8000, '127.0.0.1');

var b = dgram.createSocket('udp4');
b.on('message', function(m) {
  console.log('b received ' + m);
});
b.bind(8000, '127.0.0.1');