androiddiscovery.java

import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.Inet4Address;
import java.net.InetAddress;

public class Network {
  public void sendPacket(final byte[] d) {
    DatagramSocket socket = new DatagramSocket(null);
    socket.setReuseAddress(true);
    socket.setBroadcast(true);
    DatagramPacket dp = new DatagramPacket(d, d.length, InetAddress.getByName("192.168.1.255"), 56700);
    socket.send(dp);
  }
}

network.sendPacket(Hex.decodeHex(
  "24000034666a7e0100000000000000000000000000000100000000000000000002000000".toCharArray())
);