So, I've a INTERFACE called DDOS-GUARD, and that interface has a static IP, provided by DDOSGUARD, and my WAN has an other public IP, so I want to redirect all the traffic from the DDOS-GUARD interface to my lan server 192.168.15.240, I tired to do that in System -> Routing -> Static Routes. But when I did that, my lan server 192.168.15.240 didn't have internet connection.