driver warning with kismet

Jason Boxman jasonb at edseek.com
Sat Jan 25 11:10:10 EST 2003


On Saturday 25 January 2003 12:40 am, Jun Sun wrote:
> On Fri, Jan 24, 2003 at 07:49:23PM -0800, Jouni Malinen wrote:
> > On Fri, Jan 24, 2003 at 02:53:23PM -0800, Jun Sun wrote:
> > > I am running kismet on top of recent CVS hostap driver.  The driver
> > > normally works fine, but with kismet it emmits some annoying warnings
> > > like:
> > >
> > > wlan0: prism2_rx_80211: len(11023) > MAX(2304)
> > >
> > > Anybody knows what is wrong here?  A driver bug?  Or a configuration
> > > problem?
> >
> > Those corrupted frames are coming from the wireless LAN card as far as I
> > know. I'm not familiar with kismet operation details, but if it is
> > changing channels often,
>
> Indeed it is doing channel hopping a lot (three times a second, I think).
> That should explain why it works fine normaly but not with kismet.

Yeah, that's one of the drawbacks of using a Prism based card for Kismet, it 
has to hop channels for you, a lot.  If you want to listen on a specific 
channel you could always stop running kismet_hopper. :)

> Jun

-- 

Jason Boxman
Administrator TrekWeb.COM
http://trekweb.com/~jasonb/articles/ - Linux Pages





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