tionServer::Update(), defined by STATE_TESTING_NONE_1 and STATE_TESTING_NONE_2. The reason for 2 attempts is that every attempt occurs twice. The time for each attempt is the ping * 3 + 50 milliseconds. s4p5 is used for this.</li>
  <li>Server sends from a different IP address to client's first port, the port that RakNet is connected on. 
If received, then the client will accept datagrams from any source IP address to a port already in use. This is therefore  full-cone NAT. s2p3 is used for this.</li>
  