anchor.diff:      ok.
   
   start_ping(Pid, Ip, Port) ->
  -    start_ping(Pid, Ip, Port, ?DEFAULT_TCP_KEEPALIVE).
  +    start_ping(Pid, Ip, Port, ?DEFAULT_UDP_KEEPALIVE).
   
   
   %% @doc Start a time-alive series
  
positive.code:             },
              State#state{conns=[Conn1|Conns1]};
          false ->
              State1 = do_connect_create(Ip, Port, State),
              do_connect_ping(Ip, Port, Secs, State1)
      end.
  
  
  
negative.code: %% @private Sends a STUN binding request
  send_stun(Pid, Ip, Port) ->
      case catch gen_server:call(Pid, {send_stun, Ip, Port}, 30000) of
          {ok, StunIp, StunPort} -> {ok, StunIp, StunPort};
          _ -> error
      end.
  
  
  