Support for Captive Auto-Login on Apple Devices
Support for the built in Captive Auto-Login program on Apple Devices, when connecting to a wireless network, the apple device tries to figure out if it is connected to the internet by trying to resolve "http://www.apple.com/library/test/success.html", if it is not successful then it asks the user to log in to the Wireless network.
At current, this auto-login prompt doesn't come up and to authenticate with the wireless network through a smoothwall, you need to open your browser and log into the SSL Login Page.
Jay Neil commented
This relates to Feature Request ID 6191