On Tue, Sep 29, 2020 at 4:49 PM Samuel Sieb <samuel@sieb.net> wrote:
 
> Where to look next ?
> I started this journey with a variety of web pages such as this one:
> https://www.hackster.io/thatiotguy/enable-monitor-mode-in-tp-link-tl-wn722n-v2-v3-128fc6

It looks to me like they used an alternate driver to make that work.

It seems so, they were using a 'current' driver.
Using modinfo, I see that both my F26 and F32 are using the same driver, v4.1.4_6773.20130222.
Whereas the Monitor support was added to the driver circa Sep 2015.
So Fedora has been shipping a (very out of date?) driver.

> I'm not wedded to this USB adapter, I'd like to know which one would
> actually work
> in monitor mode, out of the box, with Fedora supplied drivers.

It works with the Intel Centrino adapter in my laptop and also with the
two USB ones I tried.  One was a really old Airlink 101 and the other
was a tiny, cheap one that I got online with some Realtek chip that uses
the rtl8192cu driver.  The Airlink I couldn't switch to monitor mode
inside wireshark, I had to set it from the command line before for some
reason, but the others could be turned on by wireshark.

Try using your built-in wifi adapter.

I did (as mentioned), and it didn't get me anywhere, (Intel 3165)
I'll re-investigate though.

>     > P.S.  Looking at the newer Wireshark, I still didn't see a 'monitor'
>     > button.  Perhaps it's because the wi-fi driver isn't supporting it?
>
>     When you open the capture options dialog, you might need to scroll to
>     the right to see the monitor checkbox.
>
> Nope, I tried sending a screen shot, but the mailing list is holding my
> message for moderation.

If you grabbed the whole screen, it was probably too big.  I've attached
a shot of just the area.

Yeah, that's what I see, except, I get dashes instead of the checkboxes.

> There is a column in the table entitled Monitor Mode, but it's filled in
> with dashes.

Just checking, is your user in the wireshark group?  Do you even see
your network adapters in the list?

Yes