Here [1][2] is a diagram that may provide a high level view. There are other diagrams that get into more details. Those would be good starting points to searc

Here [1][2] is a diagram that may provide a high level view. There are other diagrams that get into more details. Those would be good starting points to search for so that the documentation makes more sense. It may also be worth searching on Youtube for videos of people doing a walk-through of packet flows in Netfilter. [1] - https://upload.wikimedia.org/wikipedia/commons/thumb/3/37/Netfilter-packet-flow.svg/1650px-Netfilter-packet-flow.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/3/37/Ne... [2] - https://en.wikipedia.org/wiki/Netfilter https://en.wikipedia.org/wiki/Netfilter