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ipw2200_generic [2007/08/29 18:55] – drioipw2200_generic [2007/08/29 19:01] – ptw attack drio
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 If the attack fails, try to rerun the command again ommiting the "-h <AP MAC>" parameter. If the attack fails, try to rerun the command again ommiting the "-h <AP MAC>" parameter.
 +
 +
  
  
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 Now we will create an arp-request packet using the aquired keysteam file. The "-l" and "-k" options are the source IP and destination IP.  Now we will create an arp-request packet using the aquired keysteam file. The "-l" and "-k" options are the source IP and destination IP. 
-If you use valid destination IPs then you will be running an [[arp_amplication|amplification attack]]. This can be run in the same window +If you use valid destination IPs then you will be running an [[arp_amplification|amplification attack]]. This can be run in the same window 
 we run the chopchop attack: we run the chopchop attack:
        
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       # aireplay-ng -2 -r arp-request eth1       # aireplay-ng -2 -r arp-request eth1
 +
  
  
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 We have to wait now so airodump-ng gathers enough data (enough IVs) so we can run airocrack-ng.  We have to wait now so airodump-ng gathers enough data (enough IVs) so we can run airocrack-ng. 
 How many packages we need so airocrack-ng cracks the wep key? It depends. The version of  How many packages we need so airocrack-ng cracks the wep key? It depends. The version of 
-airocrack-ng that comes with backtrack2 is not the lastest one. There have been a lot of improvements in recent versions  +airocrack-ng that comes with backtrack2 is not the lastest one so we need around 1.000.000 of IVs. 
-that have reduced the number of IVs needed. In my experience, I have found 300k (data output) is more than enough. +If we are using the latest version (0.9 and up) 100.000 is enough.
- +
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 In another window we launch: In another window we launch:
  
-      # aircrack-ng dump*.cap+      # aircrack-ng -z dump*.cap
  
 Depending the number of packages you have gathered, this may take some minutes or you may get the key inmediately. Depending the number of packages you have gathered, this may take some minutes or you may get the key inmediately.
 +The -z argument tells aircrack-nt to try a ptw attack also. If you version of aircrack-ng doesn't support it, just
 +ommit it.
  
 === NOTE: === === NOTE: ===
ipw2200_generic.txt · Last modified: 2009/09/26 14:27 by darkaudax