Get IP address ... behind xDSL ...of the ISP

Question

Hi i m looking for a cool way to get not my localhost address.... i need to get my IP ... i have the next code:
import java.net.*;
public class TestIP {     
public static void main(String args[]) {          try {               
InetAddress[] addresses;
addresses = InetAddress.getAllByName(InetAddress.getLocalHost().getHostName());     for (int i=0; i<addresses.length; i++) {                    System.out.println(addresses<i>.getHostAddress());               }          }          catch(UnknownHostException e) {          System.out.println (e.getMessage());          }     
this code if is coorect (but is not)...give all the ip of your PC ...but....
thanks for the help ....... :)

Answer 1

look, i am behind a Router and the router use NAT ..
the point is if i can get the outside Address , i can
do some hacking tricks to bypass the router and make a
server behind ... in a different port of course like
the.ip.address:8989 / index.htmlWrite a small server application that prints out the remote client host name / IP address when a connection is received. Host it somewhere outside your network and connect to it from your machine. This will display your external IP.
Alternatively, you could browse to one of those online credit card forms, the type where they display a warning about fraud, and display your IP and the time (Your IP has been recorded...)