On Sun, 2009-11-08 at 15:40 +0100, Jan Kiszka wrote: > OK, confirmed with my cellphone: If I enable powersaving, it actually > has troubles replying on arp requests. Thing is that it just won't see the request. > I kept it disabled as my previous AP setup (rt2500usb on a special > 2.6.21 kernel) used to fail with powersaving as well. So the good news > is that one can perfectly run with such a setup for multiple years, and > I will continue to do so with ar9170 for now - but I also see your point. Heh. Well most people don't know how to turn off PS on their cellphone, and shouldn't have to either. > OK, carrying that patch locally will not kill me. Hmm, is there a way in > the 802.11 to tell a client to not apply powersaving in this cell - just > in case? No. PS client support is a feature that the standard requires from an AP. > And what can be done to resolve this issue for real? Does the legacy > otus driver work fine in this regard? Or are we lacking more information > about the hardware? We just need to find a way to buffer multicast frames until after DTIM. Given that we have the firmware sourcecode, it should be doable. johannes
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