package primer8;

import java.net.*;

public class LoopBack {

	public static void main(String[] args) {

		try {
			InetAddress local = InetAddress.getByName("127.0.0.1");
			NetworkInterface ni = NetworkInterface.getByInetAddress(local);
			if (ni == null)
				System.err.println(" No local loopback address");
			else
				System.out.println(ni);
		} catch (SocketException ex) {
			System.err.println("Could not list sockets");
		} catch (UnknownHostException ex) {
			System.err.println("No local loopback address.");
		}

	}

}