We have an EP6 cluster implementation in our landscape with a web dispatcher acting as a balancer on top. We achieved to implement HTTPS (end-to-end SSL) and now need to restrict any http access to our SAP Portal (that means internet users should always use https when accesing our portal).
Which is, in your opinion, the easiest way to do it? Web Dispatcher configuration, Central Instance (Java Dispatcher), other? The result should be an error message (no matter whether it's the error HTTP 501).