It's an old analog camera system, the LaView device is the recorder, in the recorder setup there will be a section to setup and change your passwords as well as set the network IP address.

For remote viewing you will likely just need to use a web browser and then enter in the external IP address of your home. The router in your home will need to have port forwarding for most likely port 80 setup to forward from the WAN side of the router to the IP address of the LaView device.