 Since the port will be 
different, the first external punchthrough attempt will fail. For this 
to work it requires  port-prediction (MAX_PREDICTIVE_PORT_RANGE&gt;1) 
and that the router chooses ports sequentially.</p>
      <center>
        <b>Success Graph</b>
        <table border="1">
          <tbody><tr>
            <td>Router Type</td>
            <td><i>Full cone NAT</i></td>
            <td><i>Address-Restricted cone NAT</i></td>
            <td><i>Port-Restricted cone NAT</i></td>
   