Why I cannot capture beacon frame

[清 廖 <liaoqing24 () yahoo com cn>]

Hi all,
I used hostapd to change the AR9233 NIC to master mode. Then I use Wireshark to capture monitor wlan0.But I've only 
captured Probe Reques. I don't know what is wrong. I want to capture beacon frames, could you please help me? Thanks a 
lot.

These is record of mon.wlan0:

1    0.000000    Apple_59:b1:68    Broadcast    IEEE 802.11    Probe Request, SN=1821, FN=0, Flags=........, 
SSID="sMobileNet"
2    0.010399    Apple_59:b1:68    Broadcast    IEEE 802.11    Probe Request, SN=1822, FN=0, Flags=........, 
SSID="sMobileNet"

3    0.865638    Intel_d5:33:62    Broadcast    IEEE 802.11    Probe Request, SN=3011, FN=0, Flags=........, 
SSID=Broadcast
4    0.868659    Intel_d5:33:62    Broadcast    IEEE 802.11    Probe Request, SN=3012, FN=0, Flags=........, 
SSID=Broadcast

5    0.871771    Intel_d5:33:62    Broadcast    IEEE 802.11    Probe Request, SN=3013, FN=0, Flags=........, 
SSID=Broadcast
6    0.874849    Intel_d5:33:62    Broadcast    IEEE 802.11    Probe Request, SN=3014, FN=0, Flags=........, 
SSID=Broadcast

7    1.284201    Intel_d5:33:62    Broadcast    IEEE 802.11    Probe Request, SN=3032, FN=0, Flags=........, 
SSID=Broadcast

Best,

Qing




___________________________________________________________________________
Sent via:    Wireshark-users mailing list <wireshark-users () wireshark org>
Archives:    http://www.wireshark.org/lists/wireshark-users
Unsubscribe: https://wireshark.org/mailman/options/wireshark-users
             mailto:wireshark-users-request () wireshark org?subject=unsubscribe