packet capture via prism0 on a wrt54g running RC5

BSSID:ff:ff:ff:ff:ff:ff DA:ff:ff:ff:ff:ff:ff SA:00:0f:b5:3d:xx:xx Probe Request (mySSID) [1.0* 2.0* 5.5* 11.0* Mbit]   from my wgt634u

vs.

BSSID:ff:ff:ff:ff:ff:ff DA:ff:ff:ff:ff:ff:ff SA:00:60:1d:f1:xx:xx Probe Request (mySSID) [1.0 2.0 5.5 11.0 Mbit]  from my laptop's orinoco gold card

what does the * in the top probe request connote?