import java.net.*;
import java.util.*;
import java.io.IOException;

class Main {
  static String hostname = new String("10.0.1.1");

  public static void main(String args[]) throws SocketException, UnknownHostException, IOException{
    InetAddress ia = InetAddress.getByName(hostname);
    MulticastSocket ssdpSocket = new MulticastSocket();

    ssdpSocket.setInterface(ia);
    System.out.println("Sending message from multicast socket on network interface: " + ssdpSocket.getNetworkInterface());
  }
}