iapp initialization failure

[Suresh Babu]

Hi 
    IAPP initialization failed when i tried to bring up the hostapd
with IAPP support(all these i didn`t test IAPP), and i guess the
problem is "setsockopt[UDP,IP_ADD_MEMBERSHIP]: No such device", How to
resolve this issue??
I am using hostap-0.3.7 and madwifi-bsd latest. and my OS is Montavista 3.0.
I`m appending log here.
Thanx in advance,
Regards,
SuBa
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Configuration file: hostapd-iapp-psk.conf
madwifi_set_iface_flags: dev_up=0
Using interface ath0 with hwaddr 00:03:7f:04:a1:52 and ssid 'suba'
madwifi_set_ieee8021x: enabled=1
madwifi_configure_wpa: group key cipher=1
madwifi_configure_wpa: pairwise key ciphers=0x2
madwifi_configure_wpa: key management algorithms=0x2
madwifi_configure_wpa: rsn capabilities=0x0
madwifi_configure_wpa: enable WPA= 0x3
madwifi_set_iface_flags: dev_up=1
madwifi_set_privacy: enabled=1
WPA: group state machine entering state GTK_INIT
GMK - hexdump(len=32):
  0000: bd0c 29cb 27d3 98f0 8ed1 6d52 917a 674b  ..).'.....mR.zgK
  0010: 821b d599 cd31 10aa 8c8e 9236 255d 63a4  .....1.....6%]c.

GTK - hexdump(len=32):
  0000: d488 f47c 257e 4366 84bb c974 20c0 ea74  ...|%~Cf...t ..t
  0010: 5ca0 cf8f c35c 7433 93a6 3058 d4d0 0f1b  \....\t3..0X....

WPA: group state machine entering state SETKEYSDONE
madwifi_set_key: alg=TKIP addr=00:00:00:00:00:00 key_idx=1
setsockopt[UDP,IP_ADD_MEMBERSHIP]: No such device
IEEE 802.11F (IAPP) initialization failed.
rmdir[ctrl_interface]: Bad address
madwifi_set_privacy: enabled=0
madwifi_set_ieee8021x: enabled=0
Freeing RADIUS radius_client_deinit
madwifi_set_iface_flags: dev_up=0