Providing Internet Access to a "remote" Real server

Did you want your real server to be able to access the internet(outbound)? Is your BigIP and real server on the same subnet? In this case you'll have to set up the BigIP as your default gateway for the real server to get out to the internet via the BigIP, and you'll need a virtual forwarding server on the BigIP.

Or access from the internet to your real server(Inbound)? In this case you'll need a Virtual forwarding server for this

I believe the above is correct if I understand your question.

Leonardo