I'm looking for a solution to reach a VPN client from another VPN client, using the ER7412-M2. The situation: I have professional cameras with remote control option. The control SW works on iPad only. Cameras are connected to a 4G router, the 4G router is connected using IPSec (IKEv2) Lan-to-Lan to the ER7412-M2. My iPad connects directly to the ER7412-M2 using IPSec (IKEv2) Client-to-Lan. Both sides using public 4G/5G networks (with NAT), and connecting trough VPN to the ER7412-M2 without any problem. But it is not possible to reach the cameras from the iPad.

Some additional info: I tried to create a virtual server on the ER7412-M2, and forward the ports to the IP of a camera. It did not work. But if I do the same port forward to an internal IP (Linux server in the home network) and I make a port forward on that Linux machine too, I can reach the camera from the iPad. So it seems for me, communication between VPN clients are disabled. Is it possible to enable it somehow? Using the Linux machine for the second forward could be a solution, but this way I can control only one camera, since I can't change the ports in the iPad app.