The last time i did this was in windows.

1) Open a browser and enter this i.p 192.168.200.254port) (forgot the port number) on location bar and <enter>
2) If everything is okay you will be ask for adm. name and password. Enter the name and password
3) Application for setting up your router will open in your browser.
4) For easier setup use wizard, it will help you step by step.

Goog luck