Unable to clone wlan device

Sam Leffler sam at freebsd.org
Tue Jun 9 15:47:22 UTC 2009


As Paul mentioned iwi supports only 1 vap at a time.  ral supports 
multiple vaps but only 1 ap vap + N wds vaps.  It may be possible to 
support more complex configurations with some ralink parts (e.g. 2860 
and later) but noone has made the effort.

Not sure about the tkip comment.  The output of

ifconfig wlanX list caps

shows support for h/w crypto acceleration.  When a device/driver does 
not support h/w acceleration the work is done in s/w.  This is unrelated 
to cloning/vaps.

    Sam

Vladimir Terziev wrote:
> The actual problem, i play with wlan cloning because of, is, i try to
> set up a FreeBSD based wireless access point either based on ral(4) or
> iwi(4) interface.
>
> The ral(4) (which is "Edimax EW-7128g") seems more suitable for that,
> since it has HOSTAP capability, but when i tried to run a hostapd(8) on
> it, i got an error about inability TKIP to be configured by hostpad(8).
> Since TKIP is not present as a capability of the wireless adapter, i
> decided to clone it and use the wlan_tkip(4) module to do the work.
>
> Thanks for your time!
>
> Regards,
>
> Vladimir
>
>
> On Tue, 2009-06-09 at 13:08 +0300, Paul B. Mahol wrote:
>   
>> On 6/9/09, Vladimir Terziev <vladimirt at partygaming.com> wrote:
>>     
>>> Thanks Paul,
>>>
>>> i have tried the same with ral(4) device and got a similar result.
>>>
>>> What about ral(4), does it support virtual interfaces ?
>>>       
>> No it doesn't. The only chips capable of multi bssid I'm aware of
>> are atheros ones and only on >= 8.0.
>>
>>     
>>> On Tue, 2009-06-09 at 11:34 +0300, Paul B. Mahol wrote:
>>>       
>>>> wlan cloning is only available on 8.0, and iwi supports only one
>>>> virtual
>>>> interface at any time.
>>>>         
>> --
>> Paul
>>
>>
>>     
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