Does FreeBSD AP (with ath) transmit regulatory domain? Should
it?
Bernhard Schmidt
bschmidt at freebsd.org
Sun Apr 29 13:52:31 UTC 2012
On Sun, Apr 29, 2012 at 15:45, Lev Serebryakov <lev at freebsd.org> wrote:
> Hello, Freebsd-wireless.
>
> I have ath (9220) based AP (running FreeBSD 10-CURRENT). I live in
> country "RU" where channels 1-13 are allowed for 2.4Ghz (8021.11ng)
> WiFi. AP could be configured for channel 13, but my "main" client
> doesn't see it.
>
> Client is equipped with Intel® PRO/Wireless 3945ABG card and run
> Windows.
>
> Here is Intel KB article[1], which says, that card doesn't have
> regulatory domain setting, but scans all channels, and selects
> regdomain from AP. But it doesn't! It sees AP on channels 1-11 but not
> on 12 or 13.
>
> Is it FreeBSD AP problem or client problem?
>
> [1] - http://www.intel.com/support/wireless/wlan/sb/cs-006064.htm
The Intel cards ship with a hard coded list of channels burned into
there EEPROM, if channels aren't in there they aren't support. You can
get all supported channels for a certain interface with:
ifconfig -v wlan0 list chan
Compare that list on AP and client side.
Just wondering, did you set a countrycode/regdomain via ifconfig
country or ifconfig regdomain? I remember that there are some issues
and you might actually end getting less channels then there are
actually supposed to be.
--
Bernhard
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