OpenBSD has an in-kernel driver for WireGuard VPN communication. Including the WireGuard Protocol in the kernel improves performance while makes it easy to use for everyone in OpenBSD base.
WireGuard® is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography.
- tech@ Thread: WireGuard patchset for OpenBSD
- Undeadly: WireGuard imported into OpenBSD
- OpenBSD 6.8 Changelog