AiDisk is a feature that built-in to every ASUS wireless devices, it allows you to create an FTP server with a few clicks.
0. Connect to the web-based console of your router
Use any browser on your PC to connect to your ASUS router, default IP address would be http://192.168.1.1, login with default username: admin and password: admin.
First select AiDisk from the menu on the left, and then click on the GO (or Set Again) button to proceed.
1. Setup FTP account:
Select "admin rights" radio button from the list, and the admin account setting will appear. Provide a password for the admin account and click Next.
2. Choose a hostname:
The next page will have an input box prior to the ".asuscomm.com" domain name, choose a name for your FTP site and enter to the box, then click Next.
If the hostname is already taken, the router will prompt for another hostname.
3. Done and ready to serve.
Now you can access your FTP site with the hostname you choose, e.g.: