WLAN devices are versatile network devices that allow several computers to communicate with each other without using wires and then allow them to move around without obstacles. Despite this fact, their management is more complex then Ethernet ports, and additional tools must be used to manage them, especially when protected connections are needed. However, GNU/Linux-based systems have a dedicated tool for every need!
In the next chapter, we'll see another important networking device class heavily used in the automotive industry, the CAN bus. It is another kind of networking mechanism that uses a simple protocol that can be used to exchange data between a complex computer and a simple microcontroller.