Find out your router IP address easily. Simply navigating to this page you will get your local IP address and router login info.
To configure your router you must log in to it and know its IP address. You can review your default router IP address here.
Opening a port and sending the incoming messages to a stated device is called port forwarding. Find here how to forward ports.
Everyone has forgotten their router's username and password at one time or another. There's no need to despair.