#6 i don't find weakness IVs

[Pablo Enrique]

Hi,
i'm trying to use wepcrack to get the wep key. I use
prism-getIV.pl to get weakness IV (the first byte are
between 2 and 14 and the second is 255). I capture a
lot of packets (100 000 more or less) and i don't find
any weakness IVs. I don't know where is the problem. I
thimk that i capture 802.11 packets correctly but i don't
know.
Anybody can help me??