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I've made a captive portal using iptables NAT redirection and white-listed MACs. This works nicely, and iDevices pop up my login/terms page after association. However, I've noticed that when 3G is enabled, the phone tries to load this page over 3G, which leaves users staring at a white screen.

One possible solution I've found is to white-list www.apple.com so that the iPhone can retrieve www.apple.com/library/test/success.html, so it thinks it's connected to the Internet, and then when users go to Safari the login page shows up. This works but leaves users confused, and I much prefer the login page popping up automatically.

Is there any way to tell the iPhone to load the login page over Wi-Fi at all times and also have the login page popping up?

derringer
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So far, we've not found any way of changing the behaviour of the 'iDevices'. For some reason, they need to talk to Apple before they'll let you talk to anything else. Nice one Apple, thanks for thinking about enterprise environments...

I think your solution there is about as good as you'll get - we've had to do similar things. They're workarounds, not real solutions as such - that'll only come from Apple, long term.

Snellgrove
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