dgram: remote UDP server doesn't receive data

[Alexey Kushnaryov]

I'm sending data to remote server, but packages are not reach the destination. Wireshark shows that packages were sent. With receiving data no problems. I'm sure it's not a problem with network/firewall etc. Node.js v10.16.3, OS: macOS Catalina 10.15.2. Also tested with Node.js 12.16.1 and on Windows 10

const dgram = require("dgram");
const server = dgram.createSocket("udp4");
const message = Buffer.from("test");

server.on('error', function (error) {
    console.log('Error: ' + error);
    server.close();
});

server.on('close', function () {
    console.log("closed");
});

server.on("listening", () => {
    server.send(message, 0, message.length, destinationPort, destinationHost);
});

server.on('message', function (msg, info) {
    console.log(msg.toString());
    console.log(info);
});

server.bind(localPort);