I’m going over VYOS Wiki’s page, and under the configuration of firewall, noticed the following (See attached picture, “Question.png”).
Few questions regarding that:
- When declairing a firewall rule, why do we need to set some kind of rules on the “in” part of the interface?. why isn’t the “out” enough?.
- can anyone please explain the “Established enable” and “related enable”?.
- On one of the rules, I saw he used: state new ‘enable’ => what is it used for?.