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Thread: Not enough IVs?

  1. #1
    Just burned his ISO
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    Oct 2008
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    Question Not enough IVs?

    When I run the aircrack command and enter the bssid and all the other info the aircrack starts but within 5 seconds I get an error that I do not have enough IVs is there something that I'm doing wrong? If you need more info I can give you all the commands I entered before I did the aircrack.
    All help is appreciated!

  2. #2
    Member
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    Default

    yea have you run Airodump first?!
    This is a hackers forum :P
    root ~# aircrack-ng pwnd-01.cap
    Lenovo Thinkpad R500, OS: Ubuntu 8.10, BackTrack3, Windows XP (VirtualBox), Windows Vista, Windows 7 beta

  3. #3
    Just burned his ISO
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    you may not have enough data, due to your range, adapter ect..

    i have to say im new on here and ive search and this has been covered quite a few times..

  4. #4
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    Quote Originally Posted by Shavx View Post
    yea have you run Airodump first?!
    Yeah I have I've gotten all of the info on my router the bssid and everything. This is the site I used to try it it might have some wrong codes maybe?
    thew0rd.com/2008/08/19/tutorial-cracking-wep-using-backtrack-3/

  5. #5
    Just burned his ISO
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    Question

    Quote Originally Posted by Shavx View Post
    yea have you run Airodump first?!
    Yeah I did then once I get enough data numbers I stop the aireplay with
    ctrl + Z then I run aircrack am I not supposed to ctrl + Z

  6. #6
    Just burned his ISO
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    How long is the WEP key you are testing with? On a 128 bit key with my Atheros card it took approx 40 minutes of packet injection to get the key in a dozen minutes; you will need to capture around 50,000 to 200,000 IVs in order to crack a 64 bit WEP key and for a 128 bit key, you will need around 200,000 to 700,000 IVs. In any case the higher the better.

    Of course some keys will open before others, so these are just averages.

  7. #7
    Junior Member kdiggity317's Avatar
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    Aug 2008
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    Cool

    Okay try this once you have gotten about 10,000 packets from your airodump just type in this:

    aircrack-ng (name of file you created)-01.cap

    Dont stop running any of the other commands your airodump should still be running as well this way if you dont have enough packets it will restart the aircrack after another 5,000 packets are caught. If you still are having problems plz post your commands and steps so we can see if we can help anymore. Let us know if this helps or not.

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