- A
Navigate to Policies > NAT, add rule > Configure Original Packet (Source Zone, Destination Zone, Source Address, Destination Address, Service) > Configure Translated Packet (Translated Source, Translated Destination) > Commit
This sequence follows the standard PAN-OS workflow where you first define the original packet parameters to match traffic, then specify how it should be translated, and finally commit the changes to activate the policy.
- B
Navigate to Policies > NAT, add rule > Configure Translated Packet (Translated Source, Translated Destination) > Configure Original Packet (Source Zone, Destination Zone, Source Address, Destination Address, Service) > Commit
Why wrong: This order is incorrect because you must define the criteria for matching traffic (Original Packet) before specifying the translation parameters; otherwise, the rule lacks context and will not function properly.
- C
Configure Original Packet > Navigate to Policies > NAT, add rule > Configure Translated Packet > Commit
Why wrong: This order is incorrect because you cannot configure the original packet before creating the NAT rule—the rule must exist first; also, skipping the commit step until after both configurations is essential for atomicity.
- D
Navigate to Policies > NAT, add rule > Configure Original Packet > Commit > Configure Translated Packet
Why wrong: This order is incorrect because committing an incomplete rule with only the original packet defined will either fail validation (if mandatory fields are missing) or create a misconfigured rule that does not perform translation.
Step-by-Step Guide to Configure NAT Policy on Palo Alto Firewall
This PCNSA practice question tests your understanding of core concepts. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Drag and drop the steps to configure a NAT policy on a Palo Alto Networks firewall into the correct order.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Navigate to Policies > NAT, add rule > Configure Original Packet (Source Zone, Destination Zone, Source Address, Destination Address, Service) > Configure Translated Packet (Translated Source, Translated Destination) > Commit
NAT policy configuration requires specifying original and translated addresses, service, and committing.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Navigate to Policies > NAT, add rule > Configure Original Packet (Source Zone, Destination Zone, Source Address, Destination Address, Service) > Configure Translated Packet (Translated Source, Translated Destination) > Commit
Why this is correct
This sequence follows the standard PAN-OS workflow where you first define the original packet parameters to match traffic, then specify how it should be translated, and finally commit the changes to activate the policy.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Navigate to Policies > NAT, add rule > Configure Translated Packet (Translated Source, Translated Destination) > Configure Original Packet (Source Zone, Destination Zone, Source Address, Destination Address, Service) > Commit
Why it's wrong here
This order is incorrect because you must define the criteria for matching traffic (Original Packet) before specifying the translation parameters; otherwise, the rule lacks context and will not function properly.
- ✗
Configure Original Packet > Navigate to Policies > NAT, add rule > Configure Translated Packet > Commit
Why it's wrong here
This order is incorrect because you cannot configure the original packet before creating the NAT rule—the rule must exist first; also, skipping the commit step until after both configurations is essential for atomicity.
- ✗
Navigate to Policies > NAT, add rule > Configure Original Packet > Commit > Configure Translated Packet
Why it's wrong here
This order is incorrect because committing an incomplete rule with only the original packet defined will either fail validation (if mandatory fields are missing) or create a misconfigured rule that does not perform translation.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
Visual reference
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PCNSA NAT questions on configuration and troubleshooting.
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FAQ
Questions learners often ask
What does this PCNSA question test?
Core Concepts — This question tests Core Concepts — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Navigate to Policies > NAT, add rule > Configure Original Packet (Source Zone, Destination Zone, Source Address, Destination Address, Service) > Configure Translated Packet (Translated Source, Translated Destination) > Commit — NAT policy configuration requires specifying original and translated addresses, service, and committing.
What should I do if I get this PCNSA question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PCNSA NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 11, 2026
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