mediumMultiple ChoiceObjective-mapped
300-410 Practice Question: Runs the following command on Router R1: R1# show…
A network engineer runs the following command on Router R1:
R1# show route-map
route-map PBR-ROUTE, permit, sequence 10 Match clauses:
ip address (access-lists): ACL-PBR
Set clauses:
ip next-hop 192.168.1.2
Policy routing matches: 0 packets, 0 bytes
route-map PBR-ROUTE, permit, sequence 20 Match clauses: Set clauses:
ip next-hop 192.168.2.2
Policy routing matches: 0 packets, 0 bytes
R1# show ip policy Interface Route-map
GigabitEthernet0/0 PBR-ROUTE
Based on this output, what is the most likely problem?
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
✓
The access list ACL-PBR does not exist or matches no traffic.
The show route-map output shows zero policy routing matches. The route map is applied to the interface, but the access list ACL-PBR may not match any traffic, or traffic is not arriving on GigabitEthernet0/0. The set clause in sequence 20 is applied unconditionally (no match clause), which would normally match all traffic, but sequence 10 must be evaluated first; if ACL-PBR matches nothing, sequence 20 would match all, yet counters still show zero, indicating no traffic is being policy-routed at all.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The route map is not applied to an interface.
Why it's wrong here
The show ip policy output shows it is applied to GigabitEthernet0/0.
- ✓
The access list ACL-PBR does not exist or matches no traffic.
Why this is correct
Zero matches in sequence 10 suggest ACL-PBR is not matching any packets. Sequence 20 has no match clause and would match all, but its counter is also zero, indicating no traffic is being processed by PBR at all, likely because ACL-PBR is missing or incorrect.
- ✗
The next-hop 192.168.1.2 is unreachable.
Why it's wrong here
Even if the next-hop is unreachable, packets would still be matched and counted; the issue is zero matches.
- ✗
The route map is missing a permit statement.
Why it's wrong here
The route map has permit statements; the problem is no traffic matching.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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