Stupid question. Just need confirmation.
PA (42020) devices are default deny correct?
If a packet is not specifically allowed or denied by a rule; when it gets to the bottom of the rules the default action is to deny, correct?
Solved! Go to Solution.
just be careful with such an "deny all" rule since it will break intrazone traffic (traffic ingress and egress the same zone, this also includes e.g. ping to a data interface when enabled).
You can temporarily enable logging of the default deny rule on the CLI: set system setting logging default-policy-logging
With an intrazone rule created before it, is there a good reason (security purposes ot other) not to have the Deny All rule in place at the end? Or is it more of personal preference?
Creating a Deny-All rule is bad practice, don't do it. If there is intrazone traffic (Trust to Trust for example) that has not been allowed by a previous rule, this will be denied because your Deny-All rule will be matching before the Intrazone-default rule.
You don't need to make a deny-all rule to see denied traffic, you can actually click the click the default intra/interzone-default rules, click "Override" next to the Clone button at the bottom to edit them, then you can enable the "Log at session end" options under the Action tab.
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