If you want to listen to Spotify and browse a webpage at the same time, your router will be receiving data from at least two servers simultaneously. Your router has more than 65000 ports to use, which can be useful if you’re doing multiple things at once. Ports are different channels through which your router sends and receives data. But where do ports come in? What are ports? This all happens in a matter of milliseconds. That server should then send the data you’ve requested back to your router, which will then pass it on to your smartphone.

In turn, your router forwards the request to the blog's servers. When you click on a blog article you want to read, you send a data “request” to your router. Let’s imagine that you’re using a smartphone on your home Wi-Fi. The router is a gateway through which data travels in and out of that network. Your router and any devices connected to it form a local network.

So what is port forwarding? Why should you do it? And how do you open ports on your router? The router and the networkīefore we jump into the specifics of ports themselves, it’s worth taking a moment to understand exactly how your router operates.

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