udp broadcats client

client.js

var dgram = require("dgram");

var port = 18432,
    multicastIP = "224.3.56.114";

var client = dgram.createSocket('udp4');
client.bind(port, "0.0.0.0");

client.on("listening", function(){
    client.setBroadcast(true);
    client.setMulticastTTL(128);
    client.setMulticastLoopback(true);
    client.addMembership(multicastIP, "0.0.0.0");
});

client.on("message", function(message){
    console.log("MUTLICAST MESSAGE");
    console.log(message.toString());
});

send.js

var dgram = require('dgram');
var message = new Buffer(Date());
var sender = dgram.createSocket("udp4");

var port = 18432,
    multicastIP = "224.3.56.114";

sender.bind();

sender.on("listening", function(){
    sender.setBroadcast(true);
    sender.setMulticastTTL(128);
    sender.setMulticastLoopback(true);
    sender.addMembership(multicastIP, "0.0.0.0");
    sender.send(message, 0, message.length, port, multicastIP, function(err, bytes) {
        sender.close();
    });
});

but if there is no end-point listening udp client doesn't care? no chance to verify even knowing specific host and port? unfortunately, I'm managing only the client part, and the server is not sending anything before I send the first message to it. Do u think it could be possible to use any TCP library?