It is used in the VoIP market. Always behind NAT, yes. We found zerotier much easier to manage, for example it's so quick for support to join/leave networks.
Another use case is our Docker Swarm which runs completely on zerotier, most nodes are on premise but some are in the cloud to make the system publicly accessible.
Another use case is our Docker Swarm which runs completely on zerotier, most nodes are on premise but some are in the cloud to make the system publicly accessible.
To me the best feature is the easy setup.