Here is the problem we are facing:

We have two firewalls. DMZ-1 has IIS and DMZ-2 has Weblogic Cluster where application runs. We have the requirement where - after user submits HTTP request, we need to forward certain secure data to third party website. Since the entire application(AppServer containing JSP/Servlets) is in DMZ-2, the data forward/flow should go from DMZ-2 to DMZ-1 and then to third party website.

Question is - What are possible architectures to address the issue?

Thank you