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Posted by:laserpad
Subject:Some newbie Questions
Date:20:45:28 01/02/2012

> Hi all,
>
> first let me thank for this great tool. Although I am still not familiar with it, I think it will save me a lot of time. Let me start with my objective:
>
> I have four identical APs (Buffalo G300NH2, Atheros Chipset) and flashed
> them with the actual OpenWRT and installed Kismet_drone Version 2010-07-R1-1.
>
> I want to make a localisation of _any_ Client, that is roaming around. Associated
> with a certain AP or not. Therefore I need (in the first step) the SignalStrengh of all the client as it is seen from any of my four APs.
>
> As far as I understood the Kismet Documentation, all this would be possible to set up... right?
>
> My Drones are running (but I think there is something wrong..) and the Server
> connects to them and receives Packages... everything seems OK, but now I am
> stuck and really need some help.
>
> First question:
> Any of the drones fire the following ERROR on startup:
>
> ERROR: Source 'mon.wlan0' doesn't have mac80211 support, disabling VAP creation
> of default monitor mode VAP
>
> But I am quite sure, that the mac80211 support is there... because:
>
> root@OpenWrt:/etc/kismet# lsmod |grep 802
> mac80211 228624 1 ath9k
> cfg80211 136288 3 ath9k,ath,mac80211
> compat 3200 1 mac80211
>
> AND:
> root@OpenWrt:/etc/kismet# iwconfig
> lo no wireless extensions.
>
> eth0 no wireless extensions.
>
> eth0.1 no wireless extensions.
>
> eth0.2 no wireless extensions.
>
> br-lan no wireless extensions.
>
> wlan0 IEEE 802.11bgn Mode:Master Frequency:2.457 GHz Tx-Power=19 dBm
> RTS thr:off Fragment thr:off
> Power Management:on
>
> mon.wlan0 IEEE 802.11bgn Mode:Monitor Frequency:2.457 GHz Tx-Power=19 dBm
> RTS thr:off Fragment thr:off
> Power Management:on
>
>
>
> Second question:
> The logfile on the Server is growing, but I don´t know how to extract the
> information I need (in realtime)... When I tcpdump it, I only see beacons,
> and probes, but no information about any client that is around and its signal-
> strength or SNR... AmI missing something? Do I have to filter something with tcpdump? If so, how would that filter look like?
>
> Anyways, I would prefer the XML-Log, but the XML also only contains Information
> about APs, nothing about the clients... how can I achieve that?
>
> Thirs question...
> Is there another way to receive the actual RF-situation in realtime on demand... currently I have set the logfile write interval to 1 second, but I´d really prefer to get the current state on a more elegant way, e.g. by connecting to the server via a port and get the XML (would be best)... e.g.
> via a HTTP-Request sent to the kismet-server..??
>
> Thanks again for reading and maybe trying to help me.
> Yves

What version of Openwrt? I tried the latest one but for my Atheros chipset, I've had the best results when using 10.03.1-rc3. Also, what's your source line look like? mine's
ncsource=wlan0:type=ath9k,hop=false,channel=5,forcevap=false

I had issues with vap creation on my device and had to install some additional packages (TUN/TAP) for it to work, but just disabling it made it work instantly for me.


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