The System Settings page is where you can process the router’s settings list: load a list from a disk, save a copy to a disk, reset all settings to the factory defaults. You can also reboot the router from here.
The Firmware page is for updating the router’s firmware.
DDNS related settings can be found on the Dynamic DNS page.
The Ping Test page is where you can ping remote machines from.
On the Schedules page various schedules for the router’s rules can be set up.