Quick Answer
The correct command is `config vpn ipsec phase1-interface`, then `edit <name>` and `set remote-gw <ip>`, because the remote gateway IP address for an IPsec VPN is defined within the phase 1 interface configuration, not in any other section of the FortiGate CLI. This setting directly controls the peer endpoint that the FortiGate attempts to establish an IKE SA with, so when `diagnose vpn ike config` shows an incorrect peer IP, you must navigate to the specific phase1-interface entry and use the `set remote-gw` command to update it. On the Fortinet NSE 7 Advanced Security NSE7 exam, this question tests your ability to distinguish between configuration and diagnostic commands—a common trap is confusing `diagnose vpn ike config` (a read-only troubleshooting tool) with the actual configuration context. Remember that phase 1 settings like PSK, certificates, and remote gateway are all under `config vpn ipsec phase1-interface`, but only the peer IP uses `set remote-gw`. A helpful memory tip: “Remote gateway is a phase 1 gateway, so it lives in the phase1-interface.”
This NSE7 practice question tests your understanding of troubleshooting and diagnostics. 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.
When troubleshooting an IPsec VPN phase 1 failure, you run 'diagnose vpn ike config' and see that the remote gateway IP address is incorrect. Which command is used to correct the peer IP configuration?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "which command"
Why it matters: Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
set psksecret <secret>
Why wrong: This sets the pre-shared key, not the peer IP.
execute vpn tunnel down <tunnel>
Why wrong: This tears down the tunnel, not configures peer IP.
config vpn ipsec phase1-interface edit <name> set remote-gw <ip>
This sets the remote gateway IP address.
set certificate <name>
Why wrong: This sets the local certificate, not peer IP.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
config vpn ipsec phase1-interface edit <name> set remote-gw <ip>
Option A is correct because the peer IP is configured under the phase1-interface settings using the 'set remote-gw' command. Option B is for PSK. Option C is for certificate. Option D is a diagnose command, not configuration.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
set psksecret <secret>
Why it's wrong here
This sets the pre-shared key, not the peer IP.
execute vpn tunnel down <tunnel>
Why it's wrong here
This tears down the tunnel, not configures peer IP.
config vpn ipsec phase1-interface edit <name> set remote-gw <ip>
Why this is correct
This sets the remote gateway IP address.
Clue confirmation
The clue word "which command" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
set certificate <name>
Why it's wrong here
This sets the local certificate, not peer IP.
Common exam traps
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
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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.
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FAQ
Troubleshooting and Diagnostics — This question tests Troubleshooting and Diagnostics — Read the scenario before looking for a memorised answer..
The correct answer is: config vpn ipsec phase1-interface edit <name> set remote-gw <ip> — Option A is correct because the peer IP is configured under the phase1-interface settings using the 'set remote-gw' command. Option B is for PSK. Option C is for certificate. Option D is a diagnose command, not configuration.
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.
Yes — watch for: "which command". Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
Read the scenario before looking for a memorised answer.
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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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