<a href="http://www.secure-bytes.com/utilities.php">http://www.secure-bytes.com/utilities.php</a>
<a href="http://code.google.com/p/natprobe/">http://code.google.com/p/natprobe/</a>
<a href="http://www.secure-bytes.com/utilities.php">http://www.secure-bytes.com/utilities.php</a>
<a href="http://code.google.com/p/natprobe/">http://code.google.com/p/natprobe/</a>