Re: Cisco cards and rfmon oddities on FreeBSD.

On 11 Nov 2002, Bob Fleck wrote:

> > : I've actually seen some of the same behavior with Prism based cards
> > : using Kismet on FreeBSD.  Haven't figure it out yet.  But I have seen
> > : people hinting that the FreeBSD drivers are adding bytes into the frames
> > : somewhere...
> >
> > Hmmmm, that's news to me.  And I'd kinda think I'd know about it...
>
> Let me restate, some people said that was the case.  I don't necessarily
> believe them, but haven't had time to look into it.
>
> That said, it definitely does not work for me.  I get the massive
> duplication of mangled SSIDs detected, and other bizareness.  I can give
> anyone who wants it some dumps.

Kismet uses prism2ctl to get Prism rfmon and relies on an offset derived
from OpenBSD to locate the header defined in bsd-airtools' frames.h.

AFAIK Kismet+Prism does not work on FreeBSD because the assumed offset
is incorrect.

-pedro





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