Surprise

Question

I used java.net.InetAddress to get the IP Address by the following applet in TestIP.class file:
import java.applet.*;
import java.net.*;
import java.awt.*;
public class TestIP extends Applet {
String ip;
public void init() {
try {
ip=InetAddress.getLocalHost().toString();
catch(UnknownHostException e) {
ip="Unknown";
public void paint(Graphics g) {
g.drawString(ip, 50, 25);
And run it with a HTML file in IE5.5 and also in NetScape 4.7, but the results was different:
Result In IE5.5:
localhost/127.0.0.1
Result in NetScape4.7:
Azarnoosh/217.29.208.69
Do you have any java applet solution to getting IP address of client in IE5.5 & NetScape4.7?
Regards
Ali Azarnoosh

Answer 1

This should display all IP addresses, but requires your applet to be signed.
import java.applet.*;
import java.net.*;
import java.awt.*;
public class TestIP extends Applet {
     InetAddress[] addresses;
     public void init() {
          try {
               addresses = InetAddress.getAllByName(InetAddress.getLocalHost().getHostName());
          catch(UnknownHostException e) {
     public void paint(Graphics g) {
          for (int i=0; i<addresses.length; i++) {
               g.drawString(addresses.getHostAddress(), 50, 25*i + 25);