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Archive for May 14th, 2010

Airodump-ng is one of favorite tools in hacking wireless network. When I upgrade my ubuntu from Gutsy to Intrepid, I can’t run this application anymore. It’s not application error because I can run it in Gutsy version before. My wireless card chip set is ‘ipw3945′.

The error message is a bit complicated as you see below.

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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.

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Mean that if you want your airodump-ng run, you will need to try to fix the bolds problems above. Your problem may be one of it but in my case not even one of the error message.

Try to figure out the answer quite some times which is actually is very simple.

It’s only change the ipw3945 chip set mode from ‘Managed‘ to ‘monitor‘.

(more…)

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