[Solved] rPi 4 wlan0 monitor mode does not output any packets

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Hi All,

Running Kali on rPi 4.

I have configured my rPi 4 wlan0 interface to be in monitor mode:

└─$ sudo iw dev   
phy#0
    Unnamed/non-netdev interface
        wdev 0x2
        addr xx:xx:xx:xx:xx:xx
        type P2P-device


txpower 31.00 dBm
    Interface wlan0
        ifindex 3
        wdev 0x1
        addr xx:xx:xx:xx:xx:xx
        type monitor
        channel 1 (2412 MHz), width: 20 MHz, center1: 2412 MHz
        txpower 31.00 dBm

In the Wireshark GUI, I select wlan0 but get no packets showing.

Likewise, running tcpdump shows nothing.

└─$ sudo tcpdump -i wlan0 -v
tcpdump: listening on wlan0, link-type EN10MB (Ethernet), snapshot length 262144 bytes

Any ideas as to why this is?

Additional details:

• I am connected to the rPi over VNC via Ethernet as I am running a headless system.
• Is it possible that I cannot run eth0 and wlan0 at the same time?

Thanks, Randy