The answer is a missing or misconfigured firewall policy between the SSL VPN interface and the internal network. When remote users connect in SSL VPN tunnel mode and can authenticate but have no access to internal resources, the most common cause is that while the SSL VPN policy itself permits traffic, the separate firewall policy governing traffic flow from the SSL VPN interface to the internal network has not been created or is incorrectly ordered. On FortiGate, tunnel mode creates a virtual interface, and all traffic routed through that tunnel must be explicitly allowed by a firewall policy—split-tunneling settings only control which destinations use the tunnel, not whether the traffic is permitted. This scenario is a classic trap on the Fortinet NSE 4 exam, testing your understanding that SSL VPN policies and firewall policies are distinct layers; many candidates mistakenly focus on authentication or routing instead. Remember the memory tip: “Tunnel in, firewall out”—the tunnel gets you in, but the firewall policy lets you out to internal resources.
NSE4 Authentication and VPN Practice Question
This NSE4 practice question tests your understanding of authentication and vpn. 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.
An administrator has configured an SSL VPN. Remote users can connect and authenticate but cannot access internal resources. The SSL VPN policy allows all traffic from the SSL VPN interface to internal servers. What is the MOST likely missing configuration?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The firewall policy allowing traffic from SSL VPN interface to internal network is missing
For SSLVPN tunnel mode, split-tunneling settings determine which traffic goes through the tunnel. If split-tunneling is not configured, the remote user's traffic may not be routed to the FortiGate properly. However, more commonly, the firewall policy between the SSL VPN interface and the internal network is missing or incorrect.
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.
✗
The remote user's client does not support split tunneling
Why it's wrong here
Split tunneling is configured on the FortiGate, not the client.
✓
The firewall policy allowing traffic from SSL VPN interface to internal network is missing
Why this is correct
Even with SSLVPN configured, traffic must be allowed by a firewall policy from the SSL VPN interface to the destination.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The authentication timeout is too short
Why it's wrong here
Timeout would cause disconnection, not inability to access resources.
✗
The SSL VPN portal does not have the correct bookmark configured
Why it's wrong here
Bookmarks are for web mode, not tunnel mode.
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 NSE4 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 NSE4 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.
Authentication and VPN — This question tests Authentication and VPN — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The firewall policy allowing traffic from SSL VPN interface to internal network is missing — For SSL VPN tunnel mode, split-tunneling settings determine which traffic goes through the tunnel. If split-tunneling is not configured, the remote user's traffic may not be routed to the FortiGate properly. However, more commonly, the firewall policy between the SSL VPN interface and the internal network is missing or incorrect.
What should I do if I get this NSE4 question wrong?
Identify which NSE4 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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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 is troubleshooting an SSL VPN connection. Users can connect but cannot access internal resources. Which TWO commands would help diagnose the issue?
medium
✓ A.get router info routing-table
✓ B.diagnose vpn ssl list
C.diagnose vpn ike status
D.execute ping 8.8.8.8
E.diagnose debug application dnsproxy
Why A: Option A checks the SSL VPN session, and option D checks routing for the tunnel interface. Option B is for IPsec, option C is for DNS, and option E is for general routing but not specific to SSL VPN.
Last reviewed: Jun 21, 2026
Question Discussion
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This NSE4 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 NSE4 exam.
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