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<DIV><FONT face=Arial size=2>I use hostap with some Belkin F5D6020 Prism 2 cards
with a sort of pseudo PCF traffic.</FONT></DIV>
<DIV><FONT face=Arial size=2>A card is in master mode and the other cards are in
managed mode. There is an interrogation cycle. A query is sent to a station. The
station send a response to the AP and the AP process the next
station.</FONT></DIV>
<DIV><FONT face=Arial size=2>So the exchange is directed by the AP and I want to
prevent other traffic to create perturbation because the time for the whole
process is very important. Beacons are sent by the AP and I know that it is
firmware based so we can't suppress this.</FONT></DIV>
<DIV><FONT face=Arial size=2>An other fact is that I want to do handover when I
decide it. Stations knows their positions and from this information AP will tell
the station to change his channel to leave a cell and reach another AP in the
next cell.</FONT></DIV>
<DIV><FONT face=Arial size=2>I have tried parameters like AP MAC address
with host_roaming parameter set to 1 and I have quick cell change. But I want
also to suppress probe, authentication and association frames exchange. After
reading code and debug message, I have seen that the preffered AP parameter is
used to choose the AP from scan results.</FONT></DIV>
<DIV><FONT face=Arial size=2>Is it possible to create new ioctls in order to
provide to hostap driver the informations needed for the handover, but
preventing the frames to be generated.</FONT></DIV>
<DIV><FONT face=Arial size=2>On the AP side I can provide the station MAC
address and on the station side I can provide the ap MAC address, the new
channel, the ESSID ...</FONT></DIV>
<DIV><FONT face=Arial size=2>I have seen from the 802.11 standard that an ID is
exchanged during association beetween AP and station. I don't know if there is
more information needed.</FONT></DIV>
<DIV><FONT face=Arial size=2>Do you think that it is possible to modify hostap
driver to fit my needs.</FONT></DIV>
<DIV><FONT face=Arial size=2>Thanks for your response.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Patrick Lafarguette</FONT></DIV></BODY></HTML>