How to configure 802.1X without a configuration file?
You need a  .mobileconfig file that includes your 802.1X profile. Acording to apple ( http://support.apple.com/kb/HT4772 ) you can use the Server extensions of Lion to create it. Alternatively (and easier ) the Iphone Configuration Utility ( http://support.apple.com/kb/dl851 ) can also create it. If you upgrade to Lion from Snow leopard any existing profile is migrated.