Hey! Thanks for the comment. There was not any particular one resource I used to direct this implementation, I used a couple. Most prominent was reading open source code on GitHub[1] by people who have done similar things. Understanding how TUN/TAP devices work was crucial and this book[2] helped a lot.

[1]https://github.com/dsnet/udptunnel [2]https://www.amazon.com/Internet-Security-Hands-Approach-Comp...