hostapd: clients can't communicate with each other

[tom-hunter at iinet.net.au]

I have successfully setup hostapd 0.73 with compat-wireless-2.6.39-1-sn running on a custom Linux 2.6.31 kernel.

Open authentication works fine and clients can ping both the access point and each other.

Using WPA2 clients can ping the access point, but can't ping each other. The ARP packets (broadcasts) are never seen at the other clients interface.

I added debug code into ieee80211_deliver_skb() (in compat-wireless net/mac80211/rx.c) to confirm that it tries to send the broadcast back to the wireless interface.

My hostapd configuration is:

interface=wlan0
driver=nl80211
ssid=SecureSSID
channel=1
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
eapol_key_index_workaround=0
wpa=3
wpa_passphrase=test1234
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP CCMP

Could someone please help?

Thanks

Tom Hunter