I have a GL-X3000 setup with an AT&T 5G connection (iPad unlimited plan) on a boat. Recently I configured the VPN client back to my home with an Edgerouter running an OpenVPN server. That allows me to securely access the GL-X3000 admin UI (using the VPN assigned client IP of 192.168.14.x). I have a webcam on the GL-X3000 LAN (192.168.8.x) and cannot figure out how to access the webcam from my home network.
I have an Edgerouter interface route configured to send traffic for 192.168.8.0/24 via the OpenVPN server interface. But cannot access the webcam.
I have also tried opening firewall ports on the GL-X3000 to access the webcam as well as the router UI over the WAN, but seems that AT&T blocks all ports.