HITL can not be used between XPlane 10 and MP?

#Ground Control Station
Mission Planner 1.3.44
#Hardware
Pixhawk2
#Firmware
ArduPlane-3.7.1

Hello, everyone. I want to use HITL in pixhawk2. But I find that MP can not connect to XPlane10. I refer to http://ardupilot.org/dev/docs/x-plane-hardware-in-the-loop-simulation.html.
some parameters are configured. It is as follows. 

IP of MP 10 is set 127.0.0.1, and remote port is configured 49000.
IP of My XPlane 10 is set 127.0.0.1, and remote port is configured 49005 and so on.     
I'm looking forward to your replay.Thank you !