On Jan 5, 2009, at 9:00 AM, Tal Rusak wrote:
    I was using
ifconfig wlan0 down
iw dev wlan0 interface add mon0 type monitor
ifconfig mon0 up
which was working as desired for a while. However, now I am only  
picking
up packets of type "Other" when sniffing on mon0.
What do you mean by "packets of type "Other""?
Did you install any Ubuntu updates between the time when it was  
working and the time when it wasn't?  (They certainly seem to publish  
updates often enough, although most of them won't matter - just kernel  
and driver updates would matter here.)