fast roaming with hostapd and wpa_supplicant

Vieri rentorbuy at yahoo.com
Mon Jun 14 09:23:14 EDT 2010


Thanks for the feedback, Dennis.

It's strange though... Hostapd's web site advertises fast roaming and in at least 3 different ways.

I guess I'm down to testing via trial and error. I was hoping to at least get an idea on which wireless card to use. The buzz seems to be any card based on Atheros so I'll try to buy a D-Link DWL-G520.

Thanks anyway,

Vieri

--- On Mon, 6/14/10, Dennis Borgmann <dennis.borgmann at googlemail.com> wrote:

> Hi Vieri,
> 
> I have been waiting for a serious answer on your last mail
> from May
> 26th, 2010 as well, but it doesn't seem to interest anyone
> or there is
> no work available, that is sophisticated enough to be told
> of. From what
> I can tell, I do not know really fast implementations. In
> 2007 I did my
> diploma thesis on this very topic, but it involved a
> madwifi card in
> monitor mode and no encryption at all. What I did in this
> work was to
> implement all the handshakes neccessary for client-AP
> communication on
> OSI layer 2 and by the way checking the signal strength of
> all the
> beacons that arrived. If an AP was significantly better in
> its signal
> strength, I switched over to that one and each handover
> took around 2,5
> ms. It wasn't visible in a videostream, even if handover
> was done
> several times a second. BUT this was without encryption and
> I did it,
> because nothing really fast was available anywhere.
> 
> So - all summed up - don't be surprised, if there won't be
> any other
> answers. This field doesn't seem to be that crowded with
> developers in
> the open source world.
> 
> Kind regards,
> Dennis
> 
> Vieri schrieb:
> > Hi,
> >
> > I'm wondering if anyone actually managed to get "fast
> roaming" to work as described in:
> > http://lists.shmoo.com/pipermail/hostap/2010-May/021482.html
> >
> > Which linux driver actually supports 802.11r?
> >
> > If anyone had success with fast roaming, I'd really
> appreciate if you could share:
> > 1) hardware devices used (driver + model name)
> > 2) config settings of both wpa_supplicant and
> hostapd.
> >
> > Thanks,
> >
> > Vieri



      


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