Description of problem: When the IWL4965 driver is running in monitor mode, it appears to collect only management frames. I do not see any data frames even though ATHEROS based wireless card in the same laptop is able to capture data frames. Version-Release number of selected component (if applicable): Kernel is 2.6.18-92.1.6.el5PAE iwl4965 firmware is iwlwifi-4965-ucode-228.57.1.21 How reproducible: Steps to Reproduce: 1. load the firmware. 2. reboot the laptop 3. ifconfig wlan0 down 4. iwconfig wlan0 mode monitor 5. iwconfif wlan0 channel 9 6. tcpdump -i wlan0 - you should see lots of frames, but you data frames. Actual results: Expected results: Additional info:
Tried on new kernel, it works for me: >[root@dhcp-lab-109 ~]# tcpdump -i wlan0 | grep Data >tcpdump: WARNING: wlan0: no IPv4 address assigned >tcpdump: verbose output suppressed, use -v or -vv for full protocol decode >listening on wlan0, link-type IEEE802_11_RADIO (802.11 plus BSD radio information header), capture size 96 bytes >13:55:53.740678 1.0 Mb/s 2412 MHz (0x00a0) -75dB signal -127dB noise antenna 3 [0x0000000e] Data IV:120000 Pad 7 KeyID 1 >13:55:53.954948 1.0 Mb/s 2412 MHz (0x00a0) -32dB signal -127dB noise antenna 3 [0x0000000e] Data IV:2ea Pad 20 KeyID 2 >13:55:54.283427 1.0 Mb/s 2412 MHz (0x00a0) -68dB signal -127dB noise antenna 3 [0x0000000e] Data IV:120000 Pad 7 KeyID 1 >13:55:54.286197 1.0 Mb/s 2412 MHz (0x00a0) -65dB signal -127dB noise antenna 3 [0x0000000e] Data IV:120000 Pad 7 KeyID 1 >13:55:54.426893 1.0 Mb/s 2412 MHz (0x00a0) -68dB signal -127dB noise antenna 3 [0x0000000e] Data IV:120000 Pad 7 KeyID 1 >13:55:54.429398 1.0 Mb/s 2412 MHz (0x00a0) -67dB signal -127dB noise antenna 3 [0x0000000e] Data IV:120000 Pad 7 KeyID 1 >13:55:54.433851 1.0 Mb/s 2412 MHz (0x00a0) -67dB signal -127dB noise antenna 3 [0x0000000e] Data IV:120000 Pad 7 KeyID 1 >13:55:54.963836 1.0 Mb/s 2412 MHz (0x00a0) -72dB signal -127dB noise antenna 3 [0x0000000e] Data IV:120000 Pad 7 KeyID 1 >13:55:55.065000 1.0 Mb/s 2412 MHz (0x00a0) -32dB signal -127dB noise antenna 3 [0x0000000e] Data IV:2eb Pad 20 KeyID 2 >13:55:55.474534 1.0 Mb/s 2412 MHz (0x00a0) -76dB signal -127dB noise antenna 3 [0x0000000e] Data IV:120000 Pad 7 KeyID 1 >157 packets captured >158 packets received by filter >0 packets dropped by kernel Bruce, Do you still have this problem on newest kernel from http://people.redhat.com/jwilson/el5/ ?
The problem has been fixed for awhile now (probably RHEL 5.3 or 5.4) I was corresponding directly with John Linville back when I discovered the problem.
Great. I'm closing bug :)