When I enable the ZeroTier connectivity, it can directly talk to raspberry pi or any other device connected to the same virtual network wherever they are and even behind the NAT. And on my mobile, I have ZeroTier One client installed and connected to the same virtual network. At a high level, In the below example, I have a raspberry pi running at my home with ZeroTier One client and connected to ZeroTier virtual network.
I will not go too in-depth into ZT features and what is it capable of. It allows all networked devices, VMs, containers, and applications to communicate as if they all reside in the same physical data center or cloud region. ZeroTier is a smart programmable Ethernet switch for planet Earth.
Check out Part-2 for configuring a travel router as client. In this article, we will look at how you can route all your traffic from anywhere via your home using ZeroTier without VPN. There may be a couple of options but complex. However if you don’t have a VPN subscription, then how?
While you are traveling, you may not want to connect all your devices to public wifi to access the internet, so the solution is to use a VPN to securely access the internet.