The Administration group is needed for managing the router. The first page is called Operation Mode. The operation modes differ mostly in the status of NAT and the router’s physical ports.
The System page is where you can enter a new administrator password and specify a server for syncing the router’s system time with. Unfortunately, you cannot enter the time data manually.
The name of the Firmware Upgrade page is self-explanatory.
The last page with settings is called Restore/Save/Upload Setting. You can back up and restore the router’s settings here.
The last item of the main menu is called System Log. It offers a few information pages including router’s log, wireless connection log, lists of assigned IP addresses, active routes and forwarded ports. You cannot set up the detailedness of the logging feature, but it is quite detailed by default.
Summing it up, the RT-N15’s firmware has a good interface with a few interesting features but also a few drawbacks. Some demanded settings are missing. Still, we do not see serious drawbacks and consider the router’s firmware as very good.