This is mostly a design question...
I need to implement an open wireless access point for visitors who comes to our office for a few days or a few hours. i.e something simple to use for these people who are generally executives or clients and who do not have time to wait for IT to setup a secure access on their computer. Most of these people only wants to access their Web Email, make a VPN to their head office or surf the internet.
I do not want to provide a public Hot Spot for all the neighbors in the building... So I think of having an https authentication before permiting any IP traffic outside that private network. The same guest password will be provided to our visitors. This password will change every weeks or months this is not a problem.
My first question is: Is it a good scenario ?
Second question: Which hardware could I use manage the authentication ? I have in mind that a PIX can perform http(s) outbound authentication, is that true ?
Thanks for your help.