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Posted by:dragorn
Subject:mac80211_setchannel() could not set channel 5/2432 on interface 'wlan0mon' err -25
Date:16:54:41 09/04/2013

> hello
> i have installed kismet_drone on openwrt on a TPLINK WR842ND
> when i try to run it i get
>
> INFO: Source 'wlan0' attempting to create mac80211 VAP 'wlan0mon'
> INFO: Started source 'wlan0'
> ERROR: mac80211_setchannel() could not set channel 1/2412 on interface
> 'wlan0mon' err -25
> ERROR: mac80211_setchannel() could not set channel 5/2432 on interface
> 'wlan0mon' err -25
>

I'm guessing you're not running 2013-03 and have a managed vap which is up & controlled by something like networkmanager. You can bring it down manually or upgrade kismet (or manually create the monitor vap and destroy all others).

If that's not the case, you may not have the firmware you need installed for the radio (check dmesg) or you may not have set the regdomain (iw reg set)


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