BCM94311MCG in Monitor Mode

yo_jamo · 11-29-2007, 06:22 PM

Hey guys, Im new to the Linux scene and I'm just trying to figure out if my WLAN card is able to go into Monitor Mode, because I've read that this doesnt work with many cards.

Heres my sudo lspci -vv output

02:00.0 Network controller: Broadcom Corporation BCM94311MCG wlan mini-PCI (rev 01)
Subsystem: AMBIT Microsystem Corp. Unknown device 0422
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 18
Region 0: Memory at 54000000 (32-bit, non-prefetchable)
[size=16K]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-
Capabilities: [58] Message Signalled Interrupts: Mask- 64bit-
Queue=0/0 Enable-
Address: 00000000 Data: 0000
Capabilities: [d0] Express Legacy Endpoint IRQ 0
Device: Supported: MaxPayload 128 bytes, PhantFunc 0,
ExtTag+
Device: Latency L0s <4us, L1 unlimited
Device: AtnBtn- AtnInd- PwrInd-
Device: Errors: Correctable- Non-Fatal- Fatal-
Unsupported-
Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
Link: Supported Speed 2.5Gb/s, Width x1, ASPM L0s, Port 0
Link: Latency L0s <4us, L1 <64us
Link: ASPM Disabled RCB 64 bytes CommClk+ ExtSynch-
Link: Speed 2.5Gb/s, Width x1

Heres my iwconfig output

eth1 IEEE 802.11g ESSID:"******"
Mode:Managed Frequency:2.462 GHz
Access Point:00:19:4A:1D:23:EE
Bit Rate=24 Mb/s Tx-Power:32 dBm
RTS thr:2347 B Fragment thr:2346 B
Encryption key:****** Security mode:restricted
Power Management: off
Link Quality:31/100 Signal level:-76 dBm Noise level:-96 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

Does that mean that it can only go into Managed mode ? if not can anyone link me some software to test it out ?

Any help would be greatly appreciated

w3bd3vil · 11-29-2007, 07:03 PM

Quote:

ifconfig mode Monitor eth1

would take it to monitor mode.

I think most cards support Monitor mode but they do not support packet injection. Moreover, while compiling drivers like the ipwXXXX ones you need to make sure that you enable the monitor and injection mode.

yo_jamo · 11-29-2007, 08:18 PM

Quote:

Originally Posted by w3bd3vil

would take it to monitor mode.

I think most cards support Monitor mode but they do not support packet injection. Moreover, while compiling drivers like the ipwXXXX ones you need to make sure that you enable the monitor and injection mode.

Cool, I'll give it a try. I compiled my drivers using a tutorial, I'll see what I can find out about enabling monitor and injection mode. I'm guessing its done by adding a few more commands in.

Thanks for the help