What is port forwarding? | Mender

You will probably need to expose an IoT embedded device from the local network to the external internet in order to access it from anywhere in the world. You will want to do this safely. With specific router configuration knowledge, it is feasible to manually open ports so that you would be able to access a web server running on the Raspberry Pi via a specific port in it such as Port 22 for a SSH connection of 80.

This is a companion discussion topic for the original entry at https://mender.io/blog/what-is-port-forwarding