On top of that, on a computer, each application has a specific port that it uses.Īs an example, email uses port 25, and web browsers use port 80, etc. For example, if I connect to 123.45.67.89 externally, I’ll hit the router in my internal network, which then assigns its own private IPs to the devices connected to the router: your TV maybe 192.168.1.30 and your MacBook maybe 192.168.1.167. When you reach that IP address, that network can be further splintered into separate devices on the local network, such as WiFi-connected cameras, smart devices and TVs, computers, tablets, and mobile devices.Įach device connected to your Wi-Fi network, then, has its own local IP address. Each internet-enabled device uses what is known as an IP Address to send and receive data.
