Now we know that the MAC address is used to make sure that the packet goes in the right direction, so each packet has a source MAC and a destination MAC, and it flows from the device that has the source MAC to the device that has the destination MAC. This is how wireless cards work in the default mode. So, if we go into the Kali machine and use iwconfig, in the following screenshot, you can see that we have a wireless card, named wlan0, and that the default mode is called managed mode:
So, basically, in this mode, our wireless device will only receive packets, or will only try to capture packets that have our device's MAC address as the destination MAC. It will only capture packets that are actually directed to our computer.
What we want to do, however, is enable it to capture any packet that's around us—any packet...
