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Date:      Wed, 20 Oct 2010 19:15:19 +0200
From:      Bernhard Schmidt <bschmidt@freebsd.org>
To:        Alexey Dokuchaev <danfe@freebsd.org>
Cc:        net@freebsd.org
Subject:   Re: Monitor mode not working for iwi(4) on 7.X
Message-ID:  <AANLkTi=SGiwM4Gw7gDNqGv1wYSfCcKRxemjfFJC1P5Cd@mail.gmail.com>
In-Reply-To: <20101020083156.GA57472@FreeBSD.org>
References:  <4763016D.7060100@janh.de> <201010081944.50287.bschmidt@techwires.net> <20101009060239.GA88618@FreeBSD.org> <201010092046.41551.bschmidt@techwires.net> <20101010072730.GA91527@FreeBSD.org> <20101016124152.GA95535@FreeBSD.org> <AANLkTikBhtpTRitvyA3i8g7AzSj_CY8a3s8HQjgiXWbF@mail.gmail.com> <20101020083156.GA57472@FreeBSD.org>

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2010/10/20 Alexey Dokuchaev <danfe@freebsd.org>:
> On Tue, Oct 19, 2010 Bernhard Schmidt wrote:
>> Alexey Dokuchaev <danfe@freebsd.org> wrote:
>> > Not sure if this is a driver or ifconfig(8) problem, but after I -medi=
aopt
>> > monitor, ifconfig(8) still reports it in media line:
>> >
>> > =A0 =A0 media: IEEE 802.11 Wireless Ethernet autoselect <monitor>
>> >
>> > However, as I said, scan list gets populated, which suggests ifconfig(=
8)
>> > is getting something wrong. Doing -mediaopt monitor the second time
>> > "knocks" ifconfig(8) though.
>>
>> I can't reproduce that on my stable/7 setup, neither in 'UP' nor in 'DOW=
N'
>> state. Can you post the exact command sequence you've used? The output
>> differs though..
>>
>> # ifconfig iwi0 mediaopt monitor
>> # ifconfig iwi0 up
>> # ifconfig iwi0 | grep media
>> =A0 =A0 media: IEEE 802.11 Wireless Ethernet autoselect (autoselect <mon=
itor>)
>> # ifconfig iwi0 -mediaopt monitor
>> # ifconfig iwi0 | grep media
>> =A0 =A0 media: IEEE 802.11 Wireless Ethernet autoselect
>
> This scenario works. =A0But try it out after aircrack-ng tools, which set
> (P)PROMISC mode on the card (and do not clear it after exit, but in my
> understanding this should not affect monitor mode and its indication, no?=
).

Correct.

# kldload if_iwi
# aireplay-ng -9 iwi0
# ifconfig iwi0
iwi0: flags=3D28943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,PPROMISC=
>
metric 0 mtu 1500
        media: IEEE 802.11 Wireless Ethernet autoselect (autoselect <monito=
r>)
# ifconfig iwi0 -mediaopt monitor
# ifconfig iwi0
iwi0: flags=3D28943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,PPROMISC=
>
metric 0 mtu 1500
        media: IEEE 802.11 Wireless Ethernet autoselect
#

hmm.. looks correct to me, am I doing something wrong?

--
Bernhard



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