I finally managed to connect with WPA-EAP protected network with WPA supplicant. Nokia N9 dont connect with WEP tunnelled EAP network so i used below method.

Got latest source code from
http://w1.fi/wpa_supplicant/

compiled and put it in: /usr/bin

put my_network.conf into: /etc/

got dummy network installed from web source deb file.
http://maemo.jacekowski.org/mirror/r...network-dummy/

1st connect the dummy network then
run wpa_supplicant

#wpa_supplicant -B -Dwext -iwlan0 -c/etc/wpa_supplicant.conf
#/sbin/udhcpc -i wlan0 -s /etc/udhcpc/libicd_network_ipv4.script -H RM696 -f -R 15 &

To stop the wpa_supplicant

pkill wpa_supplicant
sleep 1
rm -fr /var/run/resolv.conf.wlan0
sleep 1
rm -fr /var/run/wpa_supplicant
sleep 1
ifconfig wlan0 down