'How can I run docker behind the GRE Tunnel?

So I am having a pterodactyl installation on my node, I am aware that pterodactyl runs using docker so to protect my Backend IP from being exposed when connecting to the servers I am using a GRE Tunnel from X4B.net After installing the script I was provided by X4B I got this message

Also Note: This script does not adjust the configuration of your applications. You should ensure your applications are bound to 0.0.0.0 or the appropriate tunnel IP.

At first I was confused and tried connecting to my server but nothing worked, so I was thinking that it was due the docker not being bounded to 0.0.0.0

As for the network layout I was provided with:

10.16.1.200/30 Network, 10.16.1.201 Unified Gateway, 10.16.1.202 Bound via NAT to 103.249.70.63, 10.16.1.203 Broadcast

So If I host a minecraft server what IP address would I use?



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