After a lot reading and changing settings, I need a bit of help please, as I'm still a bit of a beginner in networking.
I have PPTP setup and running on my router and I am able to connect and ping devices in my network. I also set it up to give me a IP in the same range as my LAN.
I'm running openHAB on a machine and using the Android app on my phone to connect to the server.
When on the LAN (WiFi) all works 100%, but when I connect via PPTP the app cannot connect to the server, however I can use the browser to connect to it (the app and the browser uses the same address: http://192.168.88.213:8080).
I also have some IP cams that I can access fine when on the local LAN with it's app, but when I try via PPTP it does not work. Here I have to mention I added a firewall rule to block the cameras connecting outside the local LAN since I saw the IP cam was connecting to servers in China. (The rule is below).
If I disable the rule, I can connect to the camera via PPTP.
add action=drop chain=forward dst-address=!192.168.88.0/24 src-address=192.168.88.208
Please let me know what config prints you need?