I am trying to configure wireless in my Dell inspiron 6000 laptop with Fedoro Core 5 but to no avail. I have Win2K Pro installed as well in another partition. I have a bluetooth card installed in it. Intel R PRO/Wireless 2915ABG Network Connection.

Apparently, Fedora Core does not implicitly detect wireless. I tried to google for help but seems like there is a lot of confusion among users as for configuring wireless in Fedora is concerned.

Anyone here to help me? Much appreciated.

First off, what 802.11 encryption are you running?
Secondly, are you able to get the signal working when you boot with Win2K?

I have never worked with Fedora Core Distro, and don't know much of its specifications. I'm assuming Gnome is the default desktop environment on Fedora Core. Linux is free -- try other distros that do the DHCP and Wireless jobs for you, if Fedora's giving you headache! I've heard lots of Fedora users are shifting to Ubuntu these days. I use Red Hat and Mandriva -- software installation+configuration is a breeze with the rpms. However, if you insist on working with it and fix the wireless issue, here's a guidance that resembles your scenario:
Credit goes to andrew1966car--It's for WG311T with WPA encryption. Hope this helps:
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Install the Yum Extender:

su
yum -y install yumex



For the WG311T Netgear PCI wireless card (with the Atheros chipset) and WPA encryption:

Launch Yum Extender (from Gnome) - Applications, System Tools, Yum Extender.

Be patient while it populates.

Click on the Install button.

Select kernel-module-madwifi, madwifi (Multiband Atheros Driver for WiFi)

Click on the Update Packages button to install

Download libpcsclite and wpa_supplicant from http://atrpms.net/ and install them.

Edit /etc/sysconfig/network-scripts/ifcfg-ath0 and change ONBOOT=yes to ONBOOT=no.

Establish a paaskey by executing:

/usr/sbin/wpa_passphrase SSID PassPhraseInWirelessAccessPoint

(and change SSID for the wireless network ID and PassPhraseInWirelessAccessPoint to the one used in the Access Point to generate the long key). The output should look like:

network={
ssid="your ssid"
psk="network shared key"
}

Open /etc/wpa_supplicant.conf with an editor.

Delete the whole section which has examples of "network={...".

Append the text output from the wpa_passphrase program to the end of the this file.

Edit /etc/rc.d/rc.local and append the following to the end:

/usr/sbin/wpa_supplicant -c/etc/wpa_supplicant.conf -iath0 -Dmadwifi -B
/sbin/dhclient ath0

Reboot and wireless communications with WPA encryption should work.

Thanks a lot saajha for your help. I really appreciate it.
Unfortunately, I must use Fedora Core for some reason. I have Intel Corporation Pro wireless 2915ABG mini PCI adaptor. I think it's 802.11b encryption and it works well with Win2k. The steps that you provided seem to be for Netgear. Mine is Intel and as per my knowledge, intel does not provide firmware support to fedora hence the headache. I have also heard that some ended up with kernel conflict after installing the firmware in fedora. Please let me know if you have any idea on this. Thanks again!

Umm, I was asking you about the encryption method-- such as WPA, WEP, insecured(non-encrypted); not about the protocol. That's ok though.
The reason behind asking you that was to suggest you to let the wireless go unencrypted momentarily, so that you could bypass configuring the passphrase and the '.conf' file of whatever encryption is in use. And if you have luck, turning off the crypt might let your machine receive signals and start working.
I'll look into the Kerner conflict and Intel's firmware support, and let you know if I find sth fruitful.
Good Luck !

~@~

*KERNEL -- typo