Just for the record. It seems Fedora Core 6 needs and upgrade of his ieee80211 driver to work with IPW2200. I passed three days to make it work without success. Finally, I realized that I have the option to upgrade the ieee80211 driver by installing the following RPM:
for the 2.6.18-1.2798 kernel.
You can find others package for your kernel:
Just after the package installed, you have to reload IPW2200, as sudo, write:
/sbin/modprobe -r ipw2200
Now restart it:
For the ones who use WPA, you need to restart wpa_supplicant, but before, the interface must be down. Then shutdown your interface:
(eth0 or anything interface your wireless card is using)
Now, it's time to start wpa_supplicant, but change the interface (-i) to match your wireless interface:
/usr/sbin/wpa_supplicant -Dwext -ieth1 -c/etc/wpa_supplicant/wpa_supplicant.conf -Bw
If you are using a dynamic IP address (DHCP), you need to start it:
Again adapt the command to your own wireless interface (mine is eth1).
If you are using WPA-Personal, as in my case: your wpa_supplicant.conf can look like this:
But I don't know if Fedora's scripts will be able to mount correctly this driver at boot up time. This will be the next try.
Hope this help others as me who pass a lot of time to figure out what's the problem.