Situation: Incoming internet -> Router -> Switch -> Airport Extreme I am not able to use the APEX as a router due to variuos reasons. Hence, it's set in Bridged mode. WiFi work as it should. Problem: I want to setup a WiFi Guest network. If I do that as it is now (turn on Guest Network in the APEX settings), it doesn't work. I guess that the APEX needs to be the router for it to work. So, I want to restrict the "real" WiFi to accept only port 80, 21 and 25. – Ie, everyone that uses the WiFi should only be able to use internet, check mail and FTP. I have looked at the settings, but I'm not able to sort it out. How do I do this?