Date: Sun, 29 Apr 2012 16:19:50 +0200 From: Bernhard Schmidt <bschmidt@freebsd.org> To: Lev Serebryakov <lev@freebsd.org> Cc: freebsd-wireless@freebsd.org Subject: Re: Does FreeBSD AP (with ath) transmit regulatory domain? Should it? Message-ID: <CAAgh0_ZA9AQHrZgkkba2%2Bu62E7w9UaQnkBCnfoStAOzo%2BkELsQ@mail.gmail.com> In-Reply-To: <143501.20120429180507@serebryakov.spb.ru> References: <827666534.20120429174517@serebryakov.spb.ru> <CAAgh0_Yk6QOEjGWqR3jp2c=MmQrzdVXOBsnOjDiJbaA-puEaKw@mail.gmail.com> <143501.20120429180507@serebryakov.spb.ru>
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On Sun, Apr 29, 2012 at 16:05, Lev Serebryakov <lev@freebsd.org> wrote: > Hello, Bernhard. > You wrote 29 =D0=B0=D0=BF=D1=80=D0=B5=D0=BB=D1=8F 2012 =D0=B3., 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 ca= n > =C2=A0But =C2=A0this =C2=A0Intel's article says, that any card support al= l 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. > =C2=A0I =C2=A0need =C2=A0to boot FreeBSD on client for that :) I'll do th= is, but not > =C2=A0right 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. > =C2=A0I 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. --=20 Bernhard
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