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300-410 Practice Question: Which THREE symptoms indicate a potential issue…
Which THREE symptoms indicate a potential issue with NHRP registration in a DMVPN network? (Choose THREE.)
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 spoke router does not receive an NHRP Registration Reply from the hub.
Common symptoms of NHRP registration problems include the spoke not receiving a registration reply from the hub, the spoke not appearing in the hub's NHRP cache, and the spoke's tunnel interface showing a status of 'UP/UP' but the NHRP registration being 'NOT REGISTERED'. The other options are not direct symptoms of NHRP registration issues.
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 spoke router does not receive an NHRP Registration Reply from the hub.
Why this is correct
This indicates that the registration request failed, possibly due to authentication mismatch or reachability issues.
- ✓
The hub router's NHRP cache does not contain an entry for the spoke.
Why this is correct
If the spoke is not registered, the hub will not have an NHRP entry for it.
- ✓
The spoke router's tunnel interface shows 'UP/UP' but NHRP registration status is 'NOT REGISTERED'.
Why this is correct
This directly indicates that the tunnel is up but NHRP registration has failed.
- ✗
The spoke router's tunnel interface shows 'UP/DOWN'.
Why it's wrong here
This indicates a Layer 1/2 issue or misconfiguration, not specifically an NHRP registration problem.
- ✗
The spoke router's routing table shows routes learned from the hub.
Why it's wrong here
This is a normal symptom of a working DMVPN, not a problem.
Go deeper
Related to this question
Learn chapter
Introduction to ENARSI Exam and Network Fundamentals
Key term
DMVPN Phase 2
DMVPN Phase 2 is an advanced Cisco routing technology that allows spoke routers to communicate directly with one another without sending traffic through a central hub, using dynamic routing protocols and multipoint GRE tunnels.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 300-410 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 300-410 exam.