On Mon, Sep 28, 2020 at 8:47 PM Samuel Sieb <sam...@sieb.net> wrote: > On 9/28/20 5:08 PM, Fulko Hew wrote: > > I'm trying to sniff my Wifi for a project, so I purchased a TP-Link > > WN722N USB adapter > > and followed the various instructions I've found on the Web. > > When I plugged the adapter in I saw a new device 'wlp0s20f0u3' in > addition > > to my internal adapter 'wlps20'. > > > It looks good, so I start Wireshark (v 2.28) (Fedora 26), > > If that's the version you're using, there's no point asking here for > help. Why are you using something so old? >
Because that's what I currently have installed, and (rightly or wrongly) I'm afraid to do a 'dnf upgrade'. I've only ever done full installs and reloads... so I'm afraid of the unknown. I do have another box running F32, that I could test on. It would be a different configuration, but I could try it. > and look at Wireshark's 'capture options' table, it shows the interface, > > but under the heading 'Mon Mode', it shows disabled. > > In current Wireshark, that's a checkbox that you can click to turn > monitor mode on or off. > > I will give you instructions for current Fedora, but I can't help with > any issues caused by what you're running. > > Run "nmcli dev" to find out what the device is called. In my case I get > a line like: > wlo1 wifi connected Auto myssid > If it doesn't say "unmanaged", then you need to tell NetworkManager that > you want to control the device. Otherwise you will have that problem > where the interface gets taken away from Wireshark. I will assume that > "wlp0s20f0u3" is your device. > > nmcli dev set wlp0s20f0u3 managed off > yes, as per my previous message, I did turn 'manage' off. > Now, just run Wireshark, check the monitor box for the interface and > you're done. > OK, I'll try testing with the other box tomorrow.
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