airport extreme usb drive internet access
How do I access via internet from outside my local network my usb hard drive connected to my airport extreme?
Airport Extreme-OTHER, iOS 6.1.4
Setting up and using Back to My Mac with an AirPort base station or Time Capsule
How can I access an external USB hard drive that's connected to Time Capsule or AirPort Extreme (802.11n) via Back to My Mac?
If you can access your Time Capsule or 802.11n-based AirPort Extreme Base Station via Back to My Mac, and you have AirPort disk File Sharing enabled, you should also be able to access a connected USB disk. The connected drive will appear in a Finder window sidebar under "Shared" when you are using them with Back to My Mac.