- https://developers.redhat.com/blog/2018/10/22/introduction-to-linux-interfaces-for-virtual-networking
- https://leftasexercise.com/2020/01/17/virtual-networking-labs-building-a-virtual-firewall-and-router-with-linux-namespaces/
- https://blog.scottlowe.org/2013/09/04/introducing-linux-network-namespaces/
- https://www.dasblinkenlichten.com/working-with-linux-vrfs/