[Click] about userlevel FromDevice

[Harald Schioeberg]

you must use the monitor mode of atheros, typically by creating the
device with a line like this: 

$ wlanconfig ath0 create wlandev wifi0 wlanmode monitor

further reading starts here:

http://madwifi-project.org/wiki/UserDocs/MonitorModeInterface

best, 
Harald


On Tue, 2010-10-12 at 21:34 +0800, 徐晖 wrote: 
> Hi
> I want to capture wireless packet,and write a simple script to have a
> test.The script is:
> FromDevice(ath0,PROMISC true) -> Print(FromDevice(ath0),HEADROOM true) ->
> Discard;
> I create a AP in my openwrt system,interface name is ath0.
> When I run the click,the resut is not the packet with wireless header,but is
> Ethernet packet,
> the reslut like:
> FromDevice(ath0):   54 (h30 t1992) | 000b6b2f f0f5001f 3ba7c4c3 08004500
> 00286462 40008006
> 000b6b2ff0f5 src mac
> 001f3ba7c4c3 dst mac
> 0800 type IP
> Why?
> How can I capture the wireless packet?
> Thanks.