The reason I set up the network this way is because my parents and siblings regularly have people over that bring their own devices (PDAs, iPhones, laptops, etc.) that need to use our internet connection and in the past, I have found people sitting on our network who weren't authorized. This little system allows me to authorize our home laptops and smartphones to use the encrypted AP while allowing my siblings and parents to authorize guests to use the system over the unencrypted AP. A small webpage pops up when someone not recognized connects to the open access points and requires that someone in the family type in a password that grants the user access to the network for a certain amount of time.