Re: Radiotap Configuration

Siva Sivavakeesar wrote:
> Dear All,
>  
> I have been trying to configure the rtap functionality in my mobile ad
> hoc network testbed, where there doesn't exist any base station. I
> installed the IPW2200BG driver having the version v.1.2.0, the
> corresponding ieee80211having the version v.1.2.15 and upgraded the
> firmware with v3.0. The platform is FC5 having the kernel version
> 2.6.15-1.2054, and the wireless.h that I can find under
> /usr/include/linux was version 16 and developed in April 2003. 
>  
> After having installed the driver and the firmware, I followed the
> following steps:
> % modprobe ipw2200 rtap_iface=1
> % iwconfig eth1 essid testnet
> % echo 1 > /sys/bus/pci/drivers/ipw2200/*/rtap_iface
> % tcpdump -i rtap0
>  
> However, when I typed the last command, I got the follwing error
> message, although my eth1 interface was active:
>  
> "tcpdump: bind: Network is down"
>  
> Would somebody let me know what causes this error, and how I can get
> around with this problem ?
>  
> Thanks in advance for taking your invaluable time to answer my question.
>  
> Cheers
>  
> Siva
>
Try:
ifconfig rtap0 up

Regards,
--
Pedro Ramalhais


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