What is WAN?
A Wide Area Network (WAN) is a network that exists over a large-scale geographical area. Your modem sends and receives information to and from the internet through its WAN port.
What is LAN?
A Local Area Network (LAN) is the collection of wired and Wi-Fi connected devices in your home or office. This is your personal network. Your computer, phone, tablet, router, etc. make up your LAN.
Where are the WAN and LAN ports?
The WAN 
