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Date:      Thu, 29 Nov 2012 13:43:04 -0800
From:      Adrian Chadd <adrian@freebsd.org>
To:        Martin <nakal@web.de>
Cc:        freebsd-wireless@freebsd.org
Subject:   Re: kern/149516: [ath] ath(4) hostap with fake MAC/BSSID results in station dropping packets when associated
Message-ID:  <CAJ-Vmo=y0PKWXHoxJUXnj%2BV%2B=%2BEBZa5B8F0rY_1_ZU7nxgxMrg@mail.gmail.com>
In-Reply-To: <20121129223901.686290ce@zelda.sugioarto.com>
References:  <201211291940.qATJe1Jf033574@freefall.freebsd.org> <CAJ-Vmo=0kvPO=ioieDeaciX2E-37RUt756qMA07W7NyoDSPzKQ@mail.gmail.com> <20121129214512.4909fa8f@zelda.sugioarto.com> <CAJ-Vmokc=RZJyR_KCCpqxwBQyphc7VdAT5RBduF=g8pi_F0BEQ@mail.gmail.com> <20121129223901.686290ce@zelda.sugioarto.com>

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There was someone who posted on -wireless a while ago about how to
"correctly" program different mac addresses for different VAPs. The
whole setup path is a little un-intuitive and needs some love.

So take a look over the -wireless archives for multi-VAP and separate
mac addresses. :-)

Aha. It's actually having the LSB set in the first octet. Not the MSB.

So 0x80 is fine. 0x90 is fine. 0x09 is not.

http://en.wikipedia.org/wiki/Multicast_address

The hardware treats that address as special, so don't ever configure a
MAC with that multicast bit set. Or things won't work out well.



Adrian



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