We used a similar challenge which tasked a candidate to build a VPN over UDP (without the complex / annoying bits like the TUN interface). If you ignore encrypt

We used a similar challenge which tasked a candidate to build a VPN over UDP (without the complex / annoying bits like the TUN interface). If you ignore encryption it’s rather trivial. I guess in this problem the challenge is mostly the backend connection, otherwise you could possibly do this on a single VM though Golang wouldn’t be my first choice for that, the GC becomes quite annoying when processing streams at high frequency.