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We are trying to use a trial of Citrix XenApp 6 Fundamentals to virtualise a couple of applications as a proof of concept. We haven't ever used it before so I confess to be a noob with it.

We can connect to the XenApp web interface, and the iPad app will connect and list the applications, but the applications themselves will not load. I discovered in the .ica file that it was attempting to connect to the internal IP address of the server instead of its static external.

I have been following various threads on Citrix but nothing seems to have fixed it for me. The server is deployed on an EC2 instance with a static elastic IP. All the ports are opened and I can telnet into the XenApp server on 1493 and I get the ICA response. I have also run on ALTADDR and provided the external IP address.

Does anyone have any ideas?

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I'm running into the exact same issue today. I know it's been a while since you posted, but were you ever able to figure this out? Citrix's documentation is lacking to say the least. – Jeff Malone Apr 1 '12 at 20:03

You will need to configure the web interface Secure Access setting to "alternate" mode, so it actually uses the IP addresses you assigned with ALTADDR.

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