Does FreeBSD AP (with ath) transmit regulatory domain? Should it?

[Bernhard Schmidt]

On Sun, Apr 29, 2012 at 16:05, Lev Serebryakov <lev at freebsd.org> wrote:
> Hello, Bernhard.
> You wrote 29 апреля 2012 г., 17:52:29:
>
>>> [1] - http://www.intel.com/support/wireless/wlan/sb/cs-006064.htm
> BS> The Intel cards ship with a hard coded list of channels burned into
> BS> there EEPROM, if channels aren't in there they aren't support. You can
>  But  this  Intel's article says, that any card support all channels,
> but scans 12-13 passively...

Well.. the hardware does support all 2GHz and all 5GHz channels
indeed, but that doesn't mean it allows you to use em :)

Different countries/regions apply different restrictions on the
allowed channels, eg. US does allow 1-11, Europe 1-13, and JP 1-14.
Now Intel as a hardware vendor applies those restrictions by using
different EEPROMs. So, even if the hardware supports every possible
channel, the EEPROM content can prevent you from using em.

> BS> get all supported channels for a certain interface with:
> BS> ifconfig -v wlan0 list chan
> BS> Compare that list on AP and client side.
>  I  need  to boot FreeBSD on client for that :) I'll do this, but not
>  right now :)

Ok, you might also be able to use some scanning software to check if
you see frames sent from the AP.

> BS> Just wondering, did you set a countrycode/regdomain via ifconfig
> BS> country or ifconfig regdomain? I remember that there are some issues
> BS> and you might actually end getting less channels then there are
> BS> actually supposed to be.
>  I use "country" argument on AP, but client runs Windows :)

Yeah, please make sure you see channel 12,13 in the AP list, that
would be obvious first thing to check.

-- 
Bernhard