I'm not sure how to secure a wireless network.
My network is physically configured like this:
cable modem <-> apple airport extreme (ethernet).
AAE <-> WinXP laptop (ethernet)
AAE <-> WinXP laptop <-> Windows 7 laptop (wireless)
Control Panel / Manage Wireless Networks shows two networks, one of which is open. The secure network (which I set up) is listed first under Manage Wireless Networks that use (name of secure network). The open network is called Apple Network followed by a sequence of numbers and letters. I don't recall setting it up and it does not appear on my Network Map. Now that it's there, I'd like to secure it.
The secure network has wpa2-personal security, aes encryption and a security key. The Apple network has none of these. I can click in wpa2-personal security and aes encryption in the properties window, but am unsure about what to do for the security key. Is it the same as
the one used by the secure network? If not, how can I secure the Apple Network?
Thanks for any help.