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Thread: Strange error with Fern Wifi cracker...

  1. #1
    Junior Member
    Join Date
    Dec 2008
    Posts
    31

    Default Strange error with Fern Wifi cracker...

    I have been trying to find a solution to the following error with Fern Wifi Cracker for most of the day. Can anyone shed some light on this?

    Code:
    Fern failed to start scan due to an airodump-ng error: ioctl(SIOCSIWMODE) failed: Device or resource busy ARP linktype is set to 1 (Ethernet) - expected ARPHRD_IEEE80211, ARPHRD_IEEE80211_FULL or ARPHRD_IEEE80211_PRISM instead. Make sure RFMON is enabled: run 'airmon-ng start wlan0 ' Sysfs injection support was not found either.
    RIP SHIRLEY 10/11/2008

  2. #2
    Just burned his ISO
    Join Date
    Feb 2012
    Posts
    22

    Default Re: Strange error with Fern Wifi cracker...

    You need to put your card (wlan0) in monitor mode. That error message is telling you that the program can't inject because your card is in managed mode. To put your card into monitor mode:

    aimon-ng start wlan0

    And then you should have a mon0 interface for Fern-Wifi Cracker to use.

  3. #3
    Just burned his ISO
    Join Date
    Mar 2012
    Posts
    2

    Default Re: Strange error with Fern Wifi cracker...

    Quote Originally Posted by JudasIscariot View Post
    You need to put your card (wlan0) in monitor mode.
    This is true.

    I was getting "channel get ioctl failed 22" when with kismet and a Belkin PCMCIA wireless card

    It worked when booting from live usb
    It worked when installed to HD from CDROM (install from usb buggy ...)
    It stopped working when I
    apt-get update
    apt-get upgrade

    even when setting iwconfig wlan0 mode monitor

    you have to
    apt-get dist-upgrade

    then you can set monitor mode

    see here

    http://ubuntuforums.org/showthread.php?t=1617065

    cheers

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