[BAT] Monitor mode?

Sat, 24 Nov 2001 13:21:25 -0800

On Saturday 24 November 2001 12:14, you wrote:
> I'm still having no luck with 'monitor mode' using dstumbler RC1, on either
> FreeBSD 4.3 or OpenBSD 2.9.
>
>
> I've rebuilt the kernel with the patches, patched wicontrol/wiconfig, and
> can get raw packets with the other bsd-airtools applications, but always
> detect nothing (when I know there is something to detect) when I execute
> 'dstumbler wi0 -o'.

One thing I've just recently realized is that you do in fact have to switch 
channels with the prism2 cards in monitor mode in order to pick up everything 
on all of the channels. This is related to the non-overlapping frequency 
ranges in the spec:

1-5, 6-10, 11(-14 for other countries).

this means that I'll have to have dstumbler switch between the 3 frequency 
ranges in order to pick up aps on the full range. You might want to try 
setting the frequency to 1, 6, and 11 and run prism2dump to see if you see 
any beacon packets from your ap (or just set it to the same frequency as your 
ap).

> I've tried all the various suggested pre-configuration of the interface,
> including doing the configs and testing after a clean reboot, but no joy.
>
> Any suggestions to make this work?

I'll be working on getting the frequency switching support in with rc2, which 
should hopefully fix this. If you still have problems let me know and I'll 
look further into it.

Thanks,
-h1kari