Quick Answer
The correct answer is that the PBR match ip address command can reference a named or numbered ACL. This is because Policy-Based Routing uses the match ip address clause within a route map to identify traffic based on criteria defined in an access-list, which can be either standard or extended, and the ACL itself can be identified by a number or a descriptive name. On the Cisco CCNP ENARSI 300-410 exam, this concept tests your understanding of how PBR interacts with ACLs to selectively route packets, often appearing in scenario-based questions where you must choose the correct ACL type or format. A common trap is assuming that only numbered ACLs are supported, but Cisco explicitly allows named ACLs for flexibility and readability. Remember the memory tip: “PBR matches IP, and an ACL is just a named or numbered list.”
This 300-410 practice question tests your understanding of policy-based routing (pbr). Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Which statement about PBR and the 'match ip address' command is correct?
It can only match on source IP addresses.
Why wrong: Extended ACLs can match on source, destination, protocol, and ports.
It can reference a named or numbered ACL.
Both named and numbered ACLs are supported.
It can match on MAC addresses.
Why wrong: PBR does not match on MAC addresses; it uses IP ACLs.
It matches packets before routing table lookup.
Why wrong: PBR is applied after the routing table lookup, but before forwarding.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
It can reference a named or numbered ACL.
The 'match ip address' command references an access-list (standard or extended) to match packets based on source/destination IP addresses.
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
For each option: why learners choose it and why it is or isn't the right answer here.
It can only match on source IP addresses.
Why it's wrong here
Extended ACLs can match on source, destination, protocol, and ports.
It can reference a named or numbered ACL.
Why this is correct
Both named and numbered ACLs are supported.
Related concept
Static NAT maps one inside address to one outside address.
It can match on MAC addresses.
Why it's wrong here
PBR does not match on MAC addresses; it uses IP ACLs.
It matches packets before routing table lookup.
Why it's wrong here
PBR is applied after the routing table lookup, but before forwarding.
Common exam traps
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
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.
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
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.
What to study next
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 300-410 NAT questions on configuration and troubleshooting.
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FAQ
Policy-Based Routing (PBR) — This question tests Policy-Based Routing (PBR) — Static NAT maps one inside address to one outside address..
The correct answer is: It can reference a named or numbered ACL. — The 'match ip address' command references an access-list (standard or extended) to match packets based on source/destination IP addresses.
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 300-410 NAT questions on configuration and troubleshooting.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 18, 2026
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