Question about 10.3 Wifi Block/Allow Feature

In 10.3 when you connect a mobile device like an iPad to the IFD, you have to go into user settings on the IFD, locate the device in the list, and set it to ALLOW. But the devices in the list are listed by their I: address.....which will potentially change when they connect on a different flight.

So the question is, when you ALLOW a device, is the IFD really only remembering the IP address to allow, or is it behind the scenes remembering the MAC address of the device and allowing that? The MAC would remain static, so even if the IP address changed, the IFD would still be able to identify and allow the mobile device without user intervention.

Thanks!

Had a safety pilot using an iphone with the randomize mac address feature on also -- pain in the ass.. 

I seriously wish that in a future release, Avidyne makes it optional to enable these "security" features. -- i can see that they would be useful in a commercial environment, but for my little part 91 airplane, its just a pita.