Monitor Mode on Raspbian

Installation nexmon Raspbian.img on raspberry pi 3

This img comes with monitor mode.

Download the Img

download link github.com/seemoo-lab/bcm-rpi3/releases/tag/0.3

Select the nexmonrpi12-10-2016.tar.gz

Extract the file

Write the bootable img into scard using win32diskimager

Select nexmonrpi12-10-2016.dd

Click on write

Power up raspberry pi3

Enable the Monitor Mode

Connect the ssh connection

Username is root

Password is nexmon

Type is commands

insmod /root/brcmfmac.ko

ifconfig wlan0 up

thats it, try using tcpdump: tcpdump -i wlan0 -s0

or airodump-ng: airodump-ng wlan0

Original firmware and driver

Optional: remove the monitor mode driver rmmod brcmfmac

cp /root/brcmfmac43430-sdio.orig.bin /lib/firmware/brcm/brcmfmac43430-sdio.bin

use modprobe brcmfmac to load the unmodified driver and firmware