Kali Linux Raspberry Pi

How to get into Monitor-Mode

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My wifi interface for packet capture is: TP-LINK TL-WN722N. Very popular for the Pi interface.

First thing first is you need to update then download the latest Aircrack-ng version. You should already be in root mode in Kali Linux, no need for sudo at the beginning of the command.

• apt-get update
• apt-get install aircrack-ng -y

This will install all the packages and programs you will need to run in Monitor Mode from the Aircrack-ng suite and will be able to capture packets. First check what name of your interface is.

• ifconfig -a

Now to place an interface in Monitor Mode you must first have an interface that has a chipset that will be able to do this. Not all WiFi interfaces have this chipset and ability.

• airmon-ng check

This will check all networking processes being used from the system.

• airmon-ng check kill

This will kill all services that were showing. This is needed to be done.

• airmon-ng start wlan0 <- (your interface name)

Your interface name should end with "mon" at the end. Mine is "wlan0mon".

This will take a second to transfer. You now should be in monitor mode. This monitor mode will not let you to the internet nor connect to a network. Because you have turned this off to capture packets. It can only do one at a time.

To turn off monitor mode and to return to your own connected network:

• airmon-ng stop wlan0mon

To turn network services back on:

• service network-manager restart

There you have it. You can now move on to capturing packets!