By default the address to access Belkin routers is http://192.168.2.1. (just type this into your Internet browser and go to that site) The password is set to blank, so you can just click on Submit. From within the Router menu, you can set the passwords.
Note that there are at least two different passwords you can set on Wireless Routers:
- The ADMIN password is used to access the menu of the router. Most people leave this as blank
- The Wireless password ensures that no one else can use your internet connection without knowing the password. You should really set one of those, so that others can't free-roll on your connection.
- Most Internet Service Providers also need you to put in a connection password so that you can connect to their network. Without this, you cannot access the Internet at all.