Max WiFi Security

I just set up a home network using Airport Extreme to connect an iMac g5, a PC, and a shared printer. I understand that the best way to make this network secure is to disable SSID broadcasting, and to enable MAC address filtering. I can't find info anywhere on the Apple site to tell me how to do this. Suggestions?

Thanks for the info-- that's certainly easy to do.
But, I thought that by enabling MAC filtering, only
devices that I have specifically identified would be
able to access the network. Wouldn't this better
insure that no other users could gain access to my
home wireless network?
It use to be useful, but MAC address access control is really no longer a real option when it comes to wireless security.
The problem arises as the MAC addresses are sent unencrypted and therefore can be picked up and read by a determined hacker.
Not only that with many ethernet devices you can now very easily change the MAC address to a different one, so making it very easy to spoof the Mac address and fool a wireless base station into believing that you are an authenticated client.
It use to be useful, but closing your Airport or wireless network (sometimes referred to as not broadcasting your SSID) is really no longer a real option when it comes to wireless security.
A closed network is still broadcasting and therefore is detectable (regardless of whether it is broadcasting a SSID). If someone was determined to hack into your network, then not broadcasting your SSID and MAC address access control is not going to stop them.
Unfortunately "Closed" networks, MAC access control lists, and reduction in transmission power are all more "feel good" security rather than real security. All these various approaches are dated and mistakenly lead to overconfidence.
WPA is your friend if you value wireless security.
WPA is virtually uncrackable (only really vunerable to a dictionary attack if a real word is used as a password) and therefore will stop the casual user and the determined hacker.
If you are really worried, don't use wireless just use wires.
iFelix

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