[HowTo] udp2raw + WireGuard with network switching and dynamic IP addresses

[PhrozenByte]

First of all: Amazing project, thank you for your great work! ❤️

I'd like to share my WireGuard + udp2raw setup that allows the client to seamlessly switch between networks (e.g. between wifi and cellular), and the server to dynamically change IP addresses. My wg-udp2raw.sh script uses WireGuard hooks to seamlessly integrate into WireGuard. The script prepares the system, starts udp2raw as Systemd service, and implements a watchdog to support network switching and dynamic IP addresses.

Since few distributions already ship udp2raw, the repository also includes a Systemd unit to start udp2raw with an unprivileged user (a dynamic user to be more precise, and the runtime environment of udp2raw is also very much locked down for improved security). The Systemd unit might also be useful for people not using udp2raw with WireGuard.

Check out https://github.com/PhrozenByte/wg-udp2raw

[hrimfaxi]

You might want to check this project: https://github.com/hrimfaxi/tutuicmptunnel