Peer-to-Peer Networking: Building a VPN Tunnel with Wintun on Windows - Part 1
Introduction I’ve been using Tailscale for years to access my home lab without the need for a public IP. Tailscale can be installed on almost any device, allowing you to securely connect and access them from anywhere. It works as a peer-to-peer, mesh-style VPN, is opensource, and completely free for up to 100 devices and 10 users. They also offer a business plan for larger setups. What always fascinated me was how Tailscale works seamlessly across platforms like Linux, macOS, Android, and Windows. Since I use both Linux and Windows in a dual-boot setup, I started digging deeper. On Linux, it’s straightforward they rely on a TUN interface. But on Windows, I was curious about the Layer 3 adapter being used under the hood. After exploring the Tailscale GitHub repo, I discovered that it uses Wintun a TUN driver for Windows developed by the WireGuard project. ...