- A
NAT traversal is enabled on all gateways
Why wrong: NAT traversal is automatically enabled in IKEv2 when needed.
- B
Spokes are configured with 'set auto-discovery' enabled
Spokes need auto-discovery to accept shortcut proposals.
- C
IKEv1 is used for the spoke-to-hub tunnels
Why wrong: ADVPN requires IKEv2.
- D
The hub's phase2 configuration has 'auto-negotiate' enabled
This allows the hub to propose shortcut tunnels.
- E
The hub's phase2 configuration includes 'add-route'
This adds routes to spokes for shortcut.
NSE7 Advanced VPN and Zero Trust Practice Question
This NSE7 practice question tests your understanding of advanced vpn and zero trust. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
A network engineer is troubleshooting an ADVPN scenario where shortcut tunnels between spokes are not forming. The hub has IKEv2 configured and the spokes are behind NAT. Which THREE conditions must be met for shortcut tunnels to establish?
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
Spokes are configured with 'set auto-discovery' enabled
ADVPN shortcut tunnels require: IKEv2 (not IKEv1), auto-negotiate enabled on the hub phase2, and the hub's phase2 must have 'add-route' set to enable route injection. NAT traversal is automatically handled by IKEv2.
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.
- ✗
NAT traversal is enabled on all gateways
Why it's wrong here
NAT traversal is automatically enabled in IKEv2 when needed.
- ✓
Spokes are configured with 'set auto-discovery' enabled
Why this is correct
Spokes need auto-discovery to accept shortcut proposals.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
IKEv1 is used for the spoke-to-hub tunnels
Why it's wrong here
ADVPN requires IKEv2.
- ✓
The hub's phase2 configuration has 'auto-negotiate' enabled
Why this is correct
This allows the hub to propose shortcut tunnels.
Related concept
Static NAT maps one inside address to one outside address.
- ✓
The hub's phase2 configuration includes 'add-route'
Why this is correct
This adds routes to spokes for shortcut.
Related concept
Static NAT maps one inside address to one outside address.
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.
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 NSE7 NAT questions on configuration and troubleshooting.
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FAQ
Questions learners often ask
What does this NSE7 question test?
Advanced VPN and Zero Trust — This question tests Advanced VPN and Zero Trust — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Spokes are configured with 'set auto-discovery' enabled — ADVPN shortcut tunnels require: IKEv2 (not IKEv1), auto-negotiate enabled on the hub phase2, and the hub's phase2 must have 'add-route' set to enable route injection. NAT traversal is automatically handled by IKEv2.
What should I do if I get this NSE7 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 NSE7 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 21, 2026
This NSE7 practice question is part of Courseiva's free Fortinet 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 NSE7 exam.
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