Firewall Protocol and Proxy - GREEN/BLUE to ORANGE - IPs

Good evening Sirs,

when selecting [Protocols]->[Firewall Protocol] I do just see the iPFire IP in the source/target column in case of accessing my webserver in the DMZ from internal subnets.

Could you please advise what to do when using a standard web browser, so that sources and destinations are the real IP’s of the corresponding GREEN/BLUE/ORANGE subnets.

External IP addresses (RED) are shown correctly. “Forward Client-IP-Address” is checked in the Proxy-Configuration page.

Thank you much for any help.