I've installed Wireshark and configured it to let my user run it with all needed privileges (I enabled dumpcap and added my user to wireshark group, then restarted).

Devices are shown and capture starts well. The problem is that only packets sent to and directed to the PC where Wireshark is running are captured. Obviously I enabled Promiscuous mode in the capture options dialog.

For example, if I run Wireshark and then surf the web on Firefox, packets are captured. If I start browsing with my smartphone, instead, no packet is captured (PC and smartphone are connected to the same domestic WiFi network).

I'm working with a WiFi device wlan0 with ath9k drivers. Here you are the output of ifconfig wlan0 and lspci | grep Wireless:

lorenzo@XUBUNTU:~$ ifconfig wlan0

wlan0     Link encap:Ethernet  HWaddr 5c:ac:4c:32:dc:1d  

          indirizzo inet:192.168.1.100  Bcast:192.168.1.255  Maschera:255.255.255.0

          indirizzo inet6: fe80::5eac:4cff:fe32:dc1d/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:1585 errors:0 dropped:0 overruns:0 frame:0

          TX packets:1782 errors:0 dropped:0 overruns:0 carrier:0

          collisioni:0 txqueuelen:1000 

          Byte RX:970355 (970.3 KB)  Byte TX:401610 (401.6 KB)



lorenzo@XUBUNTU:~$ lspci | grep Wireless

03:00.0 Network controller: Atheros Communications Inc. AR9287 Wireless Network Adapter (PCI-Express) (rev 01)

What I want to achieve is to examine the network traffic of my smartphone using my PC running Wireshark, both connected to the same personal domestic WiFi access point.

Please help me!!