The following appear to be related to my problem: http://lists.shmoo.com/pipermail/hostap/2011-June/023286.html http://lists.shmoo.com/pipermail/hostap/2011-June/023384.html http://lists.shmoo.com/pipermail/hostap/2011-May/023255.html
I might try the hostap mailing list as well since these were posted there. Ian On 01/22/2012 07:57 PM, Wright, Brett wrote: > Hi, > > Sounds like it could be a multicast encryption key problem. > WPA uses separate multicast and unicast encryption keys. > Stations sending to the AP just use unicast key even for multicast data > (since they can only send directly to the AP), however AP sending to > stations will use the multicast key. > I'm not sure why the multicast key is broken/out of synch, but to > confirm if this is what is happening either compare the current > multicast keys at the AP and STA to see if they differ, or check the > statistics for crypto errors. > > Brett > >> -----Original Message----- >> From: ath5k-devel-boun...@lists.ath5k.org [mailto:ath5k-devel- >> boun...@lists.ath5k.org] On Behalf Of Ian Milligan >> Sent: Monday, 23 January 2012 1:16 PM >> To: ath5k-de...@venema.h4ckr.net >> Subject: [ath5k-devel] ARP Forwarding Problem in AP Mode with WPA >> >> Hi, >> >> I have an AP with an Atheros AR5001X+ bridged with an ethernet > adapter. >> The problem is that after a certain amount of time, ARP requests > coming >> from anything but the AP (meaning from the ethernet interface or other >> stations) aren't reaching the stations. I have verified using tcpdump >> that they reach the bridge and wireless interfaces on the AP, but >> aren't >> seen by the station. This appears only to happen when WPA is enabled, >> and forwarding in the opposite direction works fine. Let me know what >> further information would help debug this problem. >> >> Ian >> _______________________________________________ >> ath5k-devel mailing list >> ath5k-devel@lists.ath5k.org >> https://lists.ath5k.org/mailman/listinfo/ath5k-devel _______________________________________________ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
