Cannot access the content producer portal via reverse proxy

Question

Hi all,
I hope my post is in the right forum
We have an FPN environment using RRA with our EP (NW 7.0 SPS18) as the consumer and our BI portal (NW 7.0 SPS18) as the content producer.  The consumer is registered with the producer using HTTP protocol.  Everything works as expected.
We're trying to implement an Apache reverse proxy for our FPN with SSL termination so that we can access the portals from the Internet with HTTPS protocol while keeping HTTP protocol for the internal users.
Through the reverse proxy, we can access the consumer portal and we can access the producer portal directly without any problem.  The only problem is that, if we logged onto the consumer via the reverse proxy, we cannot access the content from the producer.  We'd get the browser security warning message
"Although this page is encrypted.  The information you have entered will be sent over an unencrypted connection. ..."
When we hit the Continue button, we'd get the eror 404 Not Found - The request resource does not exist.
Our Unix admin tried both Apache and SAP Web Dispatcher but we couldn't get it to work properly.  We went through a lot of blogs and documents and we are at our wits end.  We would greatly appreciate if someone can point out where we should look at.
Thank you very much in advance.
Dao

Answer 1

Hi Kevin,
Unfortunately, our Unix admin thinks you missed the point because my question was not clear enough
We do not have problems with the "correct name" in the reverse proxy and our main SSL termination works fine. 
It's just that the consumer is registered with the producer using HTTP protocol; as a result, the producer's URL link is 'hard-coded' to use HTTP protocol in the consumer portal since we are not using SSL in the internal network.  Hence, we'd like to know if there's any way to change them to HTTPS for the Internet clients while keeping the HTTP protocol for the internal users.
I hope I made it clearer this time
Regards,
Dao