Best conceptual diagram to understand flow of inbound/outbound traffic on a linux machine?

Does anybody know of any illustrations or diagrams that best explain the flow of traffic on a linux system?

Linking concepts such as network interface (ipv4, ipv6), with routing tables, with firewalls, with sockets (and anything else missing).

I'm trying to understand all the moving parts and there seems to be a lot, and when I think I know something in pops another component.