I know i've seen something on this somewhere, but i can't find it now. I've got a client with a WLC 4400 series and WCS that wants to setup a public guest wireless access network. They want to have the users put in their email address to authenticate and they want to capture the email addresses to use for marketing campaigns. I know you can setup the login page to have them put in their email address, but i can't remember if you have to use an external web server to actually capture and record the email addresses. If someone can provide some insight and possibly an example, i would appreciate it. Thanks.