Question

I’ve a serverSocket and I would like to know the IP address, but with

listenSocket.getInetAddress().toString();

I get 0.0.0.0 .
How can I get the IP address, or (if there are two connections enabled) one of them?

Answer 1

I’ve used this in the past:

public String getLocalIpAddress() {
    try {
        for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
            NetworkInterface intf = en.nextElement();
            for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
                InetAddress inetAddress = enumIpAddr.nextElement();
                if (!inetAddress.isLoopbackAddress()) {
                    return inetAddress.getHostAddress();
                }
            }
        }
    } catch (SocketException ex) {
        Log.e(LOG_TAG, ex.toString());
    }
    return null;
}

Source: http://www.droidnova.com/get-the-ip-address-of-your-device,304.html