How to get wan ip.

Question

How do I get my wan ip-number i.e the ip-number of my router? If I use e.g getLocalHost() I get the lan ip-number e.g 192.168.1.12.

Answer 1

You can use this method if you're not behind a firewall or a router:
import java.net.*;
import java.util.Enumeration;
public static java.net.InetAddress getInternetAddress()
    try
        InetAddress address;
        for(Enumeration e1 = NetworkInterface.getNetworkInterfaces(); e1.hasMoreElements();)
            for(Enumeration e2 = ((NetworkInterface)(e1.nextElement())).getInetAddresses(); e2.hasMoreElements();)
                address = (InetAddress)e2.nextElement();
                if( !address.isLoopbackAddress() && !address.isSiteLocalAddress() )
                    return address;
    }catch(Exception e){}
    return null;
}Regards