dhclient ignoring link on wi0

Sam Leffler sam at errno.com
Wed Jan 4 09:25:39 PST 2006

Daniel Dvorak wrote:
>>-----Original Message-----
>>From: owner-freebsd-current at freebsd.org
>>[ <mailto:owner-freebsd-current at freebsd.org>
> mailto:owner-freebsd-current at freebsd.org] On Behalf Of David Gilbert
>>Sent: Wednesday, January 04, 2006 1:03 AM
>>To: Alexander Leidinger
>>Cc: freebsd-current at 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).
> 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
>         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.


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