airmon-ng/airodump-ng doesn't work in Rpi-3b_Kali: brcmfmac: nexmon _n1_ioct1_handler Errrors

[alimp5]

root@Hero: airmon-ng start wlan0

PHY Interface   Driver      Chipset
phy0    wlan0       brcmfmac    Broadcom 43430
           brcmfmac: nexmon_nl_ioctl_handler: NEXMON: nexmon_nl_ioctl_handler: Enter
           exmon_nl_ioctl_handler: NEXMON: nexmon_nl_ioctl_handler: .................
           brcmfmac: nexmon_nl_ioctl_handler: NEXMON: nexmon_nl_ioctl_handler: callin brcmf_fil_cmd_data_set,..........
           brcmfmac: nexmon_nl_ioctl_handler: NEXMON: nexmon_nl_ioctl_handler: Exit
    Interface wlan0 is already in monitor mode

https://imgur.com/a/6uCHAsQ

root@Hero: airodump-ng wlan0 or root@Hero: airodump-ng wlan0mon

ARP linktype is set to 1 (Ethernet) - expected ARPHRD_IEEE80211,
ARPHRD_IEEE80211_FULL or ARPHRD_IEEE80211_PRISM instead.  Make
sure RFMON is enabled: run 'airmon-ng start wlan0 <#>'
Sysfs injection support was not found either.

Failed initializing wireless card(s): wlan0

the root cause of problem is in built-in broadcom wifi driver/patches. because when I connect TPlink7200ND to RPi-3B usb, airmon-ng/airodump-ng works fine.

root@Hero: uname -a Linux Hero 4.9.59-v7_Re4son-Kali-Pi+ #1 SMP Wed Feb 14 20:50:28 CST 2018 armv7l GNU/Linux aircrack-ng is already the newest version (1:1.2.0-6).

[steev]

You probably want to use aircrack-ng from git instead of the packaged version. It has better handling of nexmon.

[aircrack-ng]

Regarding airmon-ng, as @steev said, using the one from the repo should fix it. If it doesn't, then please open an issue in aircrack-ng repository.

About the second issue, check out aircrack-ng/aircrack-ng#1882

[3x-M4ch1nA]

@alimp5 Re4son (the main contributor of Kali ARM), said that nexmon no longer supports aircrack-ng.

When running airmon-ng start wlan0, I got the warning "monitor mode not enabled, this is not a raspberry pi 3" (running on rpi3). This started happening out of nowhere about a month ago or so.

The solution I was told by Re4son himself, was that to put into monitor, the new command for nexmon is mon0up/down, they're included in his Kali-Pi package. (https://whitedome.com.au/re4son/topic/sticky-fingers-kali-pi-2/#post-13278) havent tested airodump after after running command yet.

But not supporting aircrack is a real hassle for so many repos that start your monitor mode using it (fluxion).

[steev]

@3x-M4ch1nA that should be something on the aircrack-ng issues, not here.

[3x-M4ch1nA]

@Steve you are correct. however I didn't post the issue, I was responding to the op with a solution for his exact distro (Re4son's Kali-Pi), since I spent quite a large amount of time trying to figure it out myself before contacting the distro creator. He did say it was nexmon that no longer supported aircrack though, but he could have mistakenly said it backwards.

I'm going to try the above solutions of getting aircrack from official repo as well to see if that works

[aircrack-ng]

It's working just fine without it on 4.14.50-kali-v7+ without any hacks so this ticket can be closed. See aircrack-ng/aircrack-ng#1882 for more details