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aircrack-ng / rtl8812au

RTL8812AU/21AU and RTL8814AU driver with monitor mode and frame injection
GNU General Public License v2.0
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5.6.4.2 no data packets in capture #635

Open Johnny8Bit opened 4 years ago

Johnny8Bit commented 4 years ago

Hi Guys

Only management and control frames are captured in monitor mode. No issues installing the driver using DKMS or setting monitor mode.

Driver: v5.6.4.2 RPi 4B (4.19.97-v7l+) Comfast CF-912AC USB adapter

It looks like anything sent at a higher MCS rate is not captured. From the capture file I can see the RTS/CTS process, followed by the Block ACKs, but no data in-between. Forcing lower MCS rates does not seem to help (and wouldn't really want to do that anyway).

CaptureIssue

ifconfig shows lots of dropped packets on the interface. However, these counters stop incrementing once tshark is started.

pi@raspberrypi:~ $ ifconfig wlan1
wlan1: flags=4099<UP,BROADCAST,MULTICAST>  mtu 2312
        unspec 40-A5-EF-0C-1B-57-00-00-00-00-00-00-00-00-00-00  txqueuelen 1000  (UNSPEC)
        RX packets 10937  bytes 2066 (2.0 KiB)
        RX errors 0  dropped 10926  overruns 0  frame 0
        TX packets 31  bytes 5195 (5.0 KiB)
        TX errors 0  dropped 3 overruns 0  carrier 0  collisions 0

Would be really good to get this working (in any version), happy to assist with testing of any patches/updates.

Ragnt commented 4 years ago

I'm noticing this same issue with several different versions, all on a RPi 3B+ running Kali Re4son. Anyone reach any solutions on this front?

Johnny8Bit commented 4 years ago

Tried a number of USB adapters, only the Archer T9UH seems to work.

thisisfalcon commented 4 years ago

sudo service network-manager stop hope to help you.

jiribrejcha commented 3 years ago

We are experiencing the same issue as Johnny8Bit.

jolla commented 3 years ago

After some further testing it appears the issue is specifically with capturing 2 spatial stream 11ac (VHT) frames. It seems to be able to capture 1 spatial stream VHT data frames ok as well as 2 SS HT data frames, but struggles to capture 2 SS 11ac VHT data frames.