Which statement is true regarding NAT rules?
Which statement is true regarding NAT rules?
NAT rules are processed in order from top to bottom. This means that the firewall evaluates each rule starting from the top of the list and moves downwards until a matching rule is found. This ensures that the most specific or highest priority rules are applied first.
- The firewall evaluates the rules in order from the top down - Static NAT rules do not have precedence over other forms of NAT. - Upon ingress, the firewall inspects the packet and does a route lookup to determine the egress interface and zone. Then the firewall determines if the packet matches one of the NAT rules that have been defined, based on source and/or destination zone. It then evaluates and applies any security policies that match the packet based on the original (pre-NAT) source and destination addresses, but the post-NAT zones. Finally, upon egress, for a matching NAT rule, the firewall translates the source and/or destination address and port numbers. - FW supports NAT also on Vwire interfaces. https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/networking/nat/nat-policy-rules/nat-policy-overview
A and D are true as below: 1. the NAT rules are processed first before the security rules (https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClVHCA0) 2. the NAT rules are processed from top down (https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/networking/nat/nat-policy-rules/nat-policy-overview)
A is not the answer as NAT "evaluation" happens before Sec Policy but actual "translation" happens after Sec Pol evaluation. Answer is D
https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/networking/nat/nat-policy-rules/nat-policy-overview
Agree, A is impossible to use Answer D !
So in the actual exam do you pick A or D? Where do these (wrong) answers come from? The actual exam?
Answer is D
Answer is D, but B is also viable!!
in Vwire mode there is a nat capability so do not think B is viable
Answer is D
D is the most relevent answer and has only one meaning.