Hi,
I've exactly the same issue : We now are at last two !
I've meany webservers and other services like cloud sharing reachable from internet (using virtual server feature).
I'm only using mac computers at home, connected to a server with shared folders only available thru afp protocol. Other protocols like smb or CIFS are disabled (I hope that's actual).
My daughter got from his highschool a free notebook pc. I don't manage it. She has all the rights (admin) on her system. She can connect her pc to my server from her highschool via https protocol.
When she's at home, she connects her pc to the internet via the GZ. I disabled routing between both lans (192.168.7.0 and 192.168.1.0) to prevent any ransomware that could encrypt the content of my local server.
Everything runs fine but accessing to the server via the https protocol with the pc. It's possible from the highschool and not at home !
I tried to create a rule in the iptable that redirects all traffic from the GZ (192.168.7.0/24 lan) to the wan side (to my wan ip number) but I perhaps set up a wrong rule and I completly blocked the router. I've to reset it to factory defaults and restore my configuration to get it working again.
I opened a ticket on dlink's support website but I only got the user manual as answer.
If someone has the solution, it would be great !!
Thanks a lot.