Date: Thu, 18 Jul 2019 09:11:57 +0200 From: Vladimir Botka <vbotka@gmail.com> To: Matthias Apitz <guru@unixarea.de> Cc: freebsd-wireless@freebsd.org Subject: Re: debugging a Wifi association problem Message-ID: <20190718091157.774c697b@gmail.com> In-Reply-To: <20190718062033.GA4802@c720-r342378> References: <20190717053826.GA3090@c720-r342378> <20190717090543.4e0ac69f@gmail.com> <20190717173532.GA3766@c720-r342378> <20190717202602.397ca542@gmail.com> <20190717185324.GB2379@c720-r342378> <20190717231314.188da633@gmail.com> <20190718062033.GA4802@c720-r342378>
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[-- Attachment #1 --] On Thu, 18 Jul 2019 08:20:33 +0200 Matthias Apitz <guru@unixarea.de> wrote: > El día miércoles, julio 17, 2019 a las 11:13:14p. m. +0200, Vladimir Botka escribió: > > > > > FreeBSD is not needed to analyse the the problem. > > Use whatever system is able > > to set wifi card into the "monitor" mode and sniff the packets first. The > > link below is complete how to do it > > https://wiki.wireshark.org/CaptureSetup/WLAN > > When you got the data analyse it with wireshark. The captured data might grow > > fast. > > > > > > I only have FreeBSD laptops (and an older Ubuntu) and the question was > > > not if FreeBSD is needed, but if FreeBSD is *able* to capture Wifi. > > > > Yes. FreeBSD is able to capture Wifi. Find below the link to the BSD chapter. > > https://wiki.wireshark.org/CaptureSetup/WLAN#A.2ABSD > > # wireshark -i wlan0 -I > The capture session could not be initiated on interface 'wlan0' (That > device doesn't support monitor mode). # ifconfig wlan0 monitor > does not help and does nos say anything. > > # ifconfig wlan0 > wlan0: flags=48843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,MONITOR> metric 0 > mtu 1500 ... > Any ideas? You've successfully set MONITOR mode of wlan0. Use tcpdump to capture packets. https://www.freebsd.org/cgi/man.cgi?tcpdump(1) When you got the data analyse it with wireshark. The captured data might grow fast. Cheers, -vlado [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEbaThuYKQgbbmDrVkkNGZEo7UTwEFAl0wG70ACgkQkNGZEo7U TwFNYQf/U/vEHVbP76JQRVEy2k4SCPuSE4fJcMEX1fN9M8++J4oz4jPKOu/sKFCT 9nwV5EJmjeOZiI+F3i93MG1LAnAfy9CO7ToHwW/HUDC3L06c1zQScLsToPnYBGvt Khwm/dRnedUzE+P+gQ5Fgv0UVB20wfb9R5THKqW7F9uoJrgAelkyJvKSDKZPXe8A zVrWKS5BwiAJNMO5/CLeGz2FIdBBS0FWnw0HWl/PvV1fEYnEZpzUIyZ2FcujD2NB DtkOZTSr6wVUUEybJFnvQG9bHgzR3CKEPIeTPk6B9XFCVc3Fi9LtEcdAJLzPYIwa Tbwsz4Cvzx5u6p5EL/KoGUjIMBdbTQ== =54+k -----END PGP SIGNATURE-----home | help
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