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Fortinet Exam NSE7_NST-7.2 Topic 5 Question 8 Discussion

Actual exam question for Fortinet's NSE7_NST-7.2 exam
Question #: 8
Topic #: 5
[All NSE7_NST-7.2 Questions]

Refer to the exhibit. which contains the output of diagnose vpn tunnel list.

Which command will capture ESP traffic for the VPN named DialUp_0?

Show Suggested Answer Hide Answer
Suggested Answer: C

Capturing ESP Traffic:

ESP (Encapsulating Security Payload) traffic is associated with IPsec and is identified by the protocol number 50. To capture ESP traffic, you need to filter packets based on this protocol.

In this specific case, you also need to filter for the host associated with the VPN tunnel, which is 10.200.3.2 as indicated in the exhibit.

Sniffer Command:

The correct command to capture ESP traffic for the VPN named DialUp_0 is:

diagnose sniffer packet any 'esp and host 10.200.3.2'

This command ensures that only ESP packets to and from the specified host are captured, providing a focused and relevant data set for troubleshooting.


Fortinet Documentation: Verifying IPsec VPN Tunnels (Fortinet Docs) (Welcome to the Fortinet Community!).

Fortinet Community: Troubleshooting IPsec VPN Tunnels (Welcome to the Fortinet Community!) (Fortinet Docs).

Contribute your Thoughts:

Pascal Bosman
4 months ago
Interesting to see that you're all wrong. Aren't you forgetting that when NATT is used, ESP is being encapsulated into UDP port 4500. If the NATT mode was none it would have been disabled which would make Option C the correct answer. However from the output we can see that the NATT mode is silent, which means NATT is being forced. Hence option D is the correct answer. https://community.fortinet.com/t5/FortiGate/Technical-Tip-IPSec-VPN-nattraversal/ta-p/197873
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King
5 months ago
Option B is the way to go, folks. I mean, come on, who doesn't know the ESP protocol number by heart? Definitely not me. *winks*
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Ashanti
5 months ago
I'm going with Option C. The 'esp and host' syntax looks more specific than just the protocol in Option B. Plus, the wildcard could be a sneaky way to catch the VPN IP address.
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Trinidad
3 months ago
I'm not sure, but Option D might also work since it targets a specific port.
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Odette
3 months ago
I agree with you, Option C seems like the best choice. The wildcard could be useful in this case.
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France
4 months ago
Let's go with Option C then. It seems like the most precise command to capture ESP traffic for the VPN.
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Lonna
4 months ago
I agree, the wildcard in Option C could help capture the VPN IP address more accurately.
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Dong
4 months ago
I think Option A is the way to go. It specifically targets the host IP address.
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Dominque
4 months ago
I think Option C is the best choice too. The 'esp and host' seems more targeted.
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Delpha
5 months ago
Ha! Option D is just a wild guess. Who would use port 4500 for a VPN? Clearly, the answer is B, unless the exam writer is trying to trick us.
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Brittney
4 months ago
Yeah, I agree. Option D does seem like a wild guess.
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Nan
4 months ago
I think option B is the correct one.
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Leandro
5 months ago
I'm not sure, but I think B) diagnose sniffer packet any 'ip proto 50' could also be a valid option
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Felix
5 months ago
I disagree, I believe the correct answer is C) diagnose sniffer packet any 'esp and host 10*200.3.2'
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Glenn
5 months ago
Hmm, I'm not sure. Option C seems to have the right protocol and IP address, but the wildcard is a bit sketchy. Might be better to go with the direct IP address in Option A.
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Jospeh
4 months ago
Let's capture ESP traffic with Option A then.
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Lashandra
4 months ago
Yeah, Option A seems more straightforward.
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Aleisha
5 months ago
I agree, let's go with Option A.
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Marisha
5 months ago
I think Option A is the best choice.
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Ashley
5 months ago
I think the answer is A) diagnose sniffer packet any 'host 10.0.10.10'
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Barrie
6 months ago
Option B looks good to me. The ESP protocol is 50, so that should capture the VPN traffic.
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Kiera
5 months ago
Yeah, I agree. The ESP protocol is 50, so that should capture the VPN traffic.
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Thaddeus
5 months ago
I think option B is the correct one.
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