Creating a Linux “Yogurt-phone” — with netkit and a grain of eBPF

This post is the second in a 2 part series:

1. Part 1: Introduction to Linux Netkit interfaces.

2. Part 2: Creating a Linux “Yogurt-phone” — with netkit and a grain of eBPF (This post)

A “Yogurt-phone” is a simple children science experiment where young experimenters connect two phones through a thread or wire. They can then talk together using the Yogurt pots as ends of a phone line. This is nice introduction to communication over a wire — literally.