var natUpnp = require('nat-upnp'); var dgram = require('dgram'); var server = dgram.createSocket('udp4'); var PORT = 45454; var client = natUpnp.createClient(); client.portMapping({ public: PORT, private: PORT, ttl: 2 * 60 }, (err) => { console.log("portMapping ", err); // Will be called once finished }); client.portUnmapping({ public: PORT }); client.getMappings((err, results) => { console.log("getMappings ", results); }); client.getMappings({ local: true }, (err, results) => { console.log("getMappings local : ", results); }); client.externalIp((err, ip) => { console.log("externalIp ", ip); }); process.on('SIGINT', function() { console.log("Caught interrupt signal"); client.close(); process.exit(); // if (i_should_exit) { // } });