I don't see how this is possible on many levels: 1. How do you get a router's MAC address using javascript? 2. How do you get a router's model number using ja

I don't see how this is possible on many levels: 1. How do you get a router's MAC address using javascript? 2. How do you get a router's model number using javascript? 3. Why does Google maps store location by MAC address? 4. How do you get this information from Google maps? Even if you don't specifically know how to do these things, I'd love to hear how and why they're possible at all.