With my limited understanding of java security, you simply can not
get the IP address of your own computer if using applet? instead you
must use java application.

However there is an example of this working just below:

http://reglos.de/myaddress/demo1.html

I would love to find out what makes it tick.

yet I dont quite see how it can be done.

I have tried this, but only get the loop back addr.

public class GetClientIP extends Applet {
public void init() {
try {
InetAddress thisIp =
InetAddress.getLocalHost();
System.out.println("IP:"+thisIp.getHostAddress());
}
catch(Exception e) {
e.printStackTrace();
}
}
}