I’m browsing from my laptop on the same network as promox: 192.168.1.0/24
The tunnel is relevant in that my ultimate goal will be to have “client” in the cloud so I can access my apps from the world while having all traffic into my house be through a VPN.
The VM’s IPs are 192.168.1.50 (“server”) and 192.168.1.51 (“client”). They can see everything on their subnet and everything on their subnet can see them.
Everything is using my router for DNS, and my router points myapp.mydomain.com and whoami.mydomain.com to “client”. And by “everything” I mean all computers on the subnet and all containers in this project.
Both VMs and my laptop resolve myapp.mydomain.com and whoami.mydomain.com to 192.168.1.51, which is “client”, and can ping it.