The correct configuration on the hub is to set the phase 1 interface type to dynamic and set remote-gw 0.0.0.0. This works because a dynamic type with a zeroed-out remote gateway tells the FortiGate to accept incoming IPsec connections from any peer IP, which is essential when spokes have dynamic public addresses that change over time. Mode-config is then enabled on the hub to assign virtual IPs to each connecting spoke, creating a scalable dial-up VPN topology. On the Fortinet NSE 7 Advanced Security NSE7 exam, this scenario tests your understanding of hub-and-spoke VPN design under the "Advanced IPsec VPN" objective, and a common trap is to mistakenly set a static remote gateway or use a peer ID without enabling mode-config. Remember the memory tip: "Dynamic hub, zero gateway—any peer, any time."
NSE7 Advanced VPN and Zero Trust Practice Question
This NSE7 practice question tests your understanding of advanced vpn and zero trust. 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.
An administrator wants to configure a multi-peer IPsec VPN where one FortiGate (hub) connects to multiple remote FortiGates (spokes) using a single phase 1 interface with dynamic IP addresses. Which configuration is required on the hub?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Set type to dynamic and set remote-gw 0.0.0.0
To allow multiple peers to connect with dynamic IPs, the hub must use a phase 1 interface with mode-cfg enabled to assign IPs to clients and accept connections from any remote IP (set remote-gw 0.0.0.0). This is commonly called a dial-up VPN configuration.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Set psksecret to a group password and enable XAuth
Why it's wrong here
XAuth is for user authentication, not required for multi-peer dynamic IP.
✗
Set mode to aggressive and use pre-shared keys
Why it's wrong here
Aggressive mode is for IKEv1, not required for dynamic peers.
✗
Set type to static and configure each peer's IP in separate phase1
Why it's wrong here
Static type with multiple phase1 interfaces is one way, but not with a single phase1.
✓
Set type to dynamic and set remote-gw 0.0.0.0
Why this is correct
Dynamic type with remote-gw 0.0.0.0 allows any peer to initiate the tunnel.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the NSE7 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which NSE7 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Advanced VPN and Zero Trust — This question tests Advanced VPN and Zero Trust — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Set type to dynamic and set remote-gw 0.0.0.0 — To allow multiple peers to connect with dynamic IPs, the hub must use a phase 1 interface with mode-cfg enabled to assign IPs to clients and accept connections from any remote IP (set remote-gw 0.0.0.0). This is commonly called a dial-up VPN configuration.
What should I do if I get this NSE7 question wrong?
Identify which NSE7 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. An administrator needs to configure a site-to-site IPsec VPN with a remote FortiGate that has a dynamic IP address. Which phase1 parameter must be set to support this?
easy
A.Enable Perfect Forward Secrecy (PFS)
B.Enable NAT traversal
C.Use certificate-based authentication
✓ D.Set mode to aggressive and use a pre-shared key
Why D: When the remote FortiGate has a dynamic IP address, the local FortiGate cannot initiate the VPN because it does not know the remote peer's IP. Setting the phase1 mode to aggressive and using a pre-shared key allows the remote peer to initiate the connection by sending its identity (ID) in the first exchange, enabling the local FortiGate to identify and authenticate the peer without requiring a static IP address for the remote side.
Last reviewed: Jun 21, 2026
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.