VPN behind NAT
I have a remote location I want to connect to using a VPN
The problem is my local 3G/4G internet connection
The ISP I have for this internet connection gives my 3G router a private IP address, not the public IP. That public IP is somewhere in a router of my ISP, so I'm not able to make, or ask for, any kind of configuration at that router.
At this remote location I have a TPlink for 3G/4G connection and a Ubiquiti ER-X router
Is it still possible to make a site-to-site VPN with my WG T40?