Here is the simple scenario what we have done in our landscape:
1. Created some reports in ECC 6.04 system using ABAP Webdynpro
2. Configured SSO between ECC & Portal
3. Created iViews for the ABAP Webdynpro's and integrated in a role and assigned to an end user
4. Configured the sub-domain for our website and enabled the port forwarding in our router
I can now successfully access the portal system from Internet http://xxxx.xxxxxx.com:50000/irj/portal
Now when I am trying to access the webdynpro reports from the portal over internet (it is connecting my backend ECC system), it's giving me the following error:
Can you please advice what would be wrong or is there any ports to be opened or any other setting are to be done on Portal/ECC system?