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Date:      Wed, 04 Jan 2006 09:26:59 -0800
From:      Sam Leffler <sam@errno.com>
To:        dandee@volny.cz
Cc:        freebsd-current@freebsd.org
Subject:   Re: dhclient ignoring link on wi0
Message-ID:  <43BC0563.3050600@errno.com>
In-Reply-To: <001401c61124$5c5f4480$6508280a@tocnet28.jspoj.czf>
References:  <001401c61124$5c5f4480$6508280a@tocnet28.jspoj.czf>

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Daniel Dvorak wrote:
>>-----Original Message-----
>>From: owner-freebsd-current@freebsd.org
>>[ <mailto:owner-freebsd-current@freebsd.org>
> 
> mailto:owner-freebsd-current@freebsd.org] On Behalf Of David Gilbert
> 
>>Sent: Wednesday, January 04, 2006 1:03 AM
>>To: Alexander Leidinger
>>Cc: freebsd-current@freebsd.org; David Gilbert
>>Subject: Re: dhclient ignoring link on wi0
>>
>>
>>I also thought that someone might have comments about a wi0
>>as an access point.  This used to work, but all clients (even
>>windoze) seem to loose association every 20 to 40 minutes
>>(although the timing is random it seems).
>>
>>
>>Dave.
> 
> 
> Not only this one, to make the picture complete. For example, another
> relevant issue is:
> 
> from rc.conf:
> 
> ifconfig_wi1="inet w.x.y.z/m ssid A mediaopt hostap channel 4 up"
> 
> reality ?
> 
> # ifconfig wi1
> wi1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>       
>         media: IEEE 802.11 Wireless Ethernet autoselect <hostap> (DS/2Mbps
> <hostap>)
>         status: associated
>       
>         authmode OPEN privacy OFF txpowmax 100 dtimperiod 1 bintval 100
> 
> It has never reached more than DS/2Mbps in hostap mode.

That is a firmware issue.  OTOH there are patches floating around that 
bypass the firmware and select the tx rate in the host and which make 
operation better.
> 
> ... and other issue is about transmit power limit, no chance to limit tx,
> txpowmax does not work at all. Card transmits at full power.

This is a firmware issue.  Find a driver that supports changing the tx 
power and you will find a driver that works only for certain cards and 
certain revs of firmware.  Feel free to supply patches for this; you can 
get them from the linux hostap driver for example.

> 
> I know from my friend there exists some patch for the first issue, but CVS
> does not contain it even in 7-CURRENT, let alone 6-STABLE.

Becuase the person working on the patch received feedback that it did 
not work in all cases and has not had time to identify the issue.

	Sam



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