The correct answer is to enable ECMP in the routing settings and ensure the static routes have the same distance and priority. ECMP, or Equal Cost Multi-Path routing, allows a FortiGate to load-balance traffic across multiple IPsec VPN tunnels only when the routes to the different remote sites are truly equal in cost—meaning they share identical administrative distance and priority values. If one route has a lower distance or priority, the FortiGate will always prefer that path, breaking the load-balancing behavior. On the Fortinet NSE 7 Advanced Security exam, this question tests your understanding of how ECMP interacts with static routes for IPsec VPNs; a common trap is assuming ECMP works automatically regardless of route metrics, or confusing it with policy-based routing. Remember the memory tip: “Same distance, same priority, then ECMP sets the parity.”
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.
A FortiGate is configured with two VPN tunnels to different remote sites. The administrator notices that traffic is not load-balanced across the tunnels; all traffic uses the first tunnel. The administrator wants to use ECMP (Equal Cost Multi-Path) routing. Which two actions are required? (Choose two.)
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Set the same distance and priority for both static routes
ECMP requires that routes have the same distance and priority. Also, the administrator must enable ECMP in the routing settings. Option A and D are correct: set the same distance and priority for the static routes, and enable ECMP. Note: ECMP is enabled by default in policy-based routing? Actually, for static routes, ECMP is automatically used when multiple routes have the same distance and priority. Option D is correct: enable ECMP in the routing settings (if not already). But the question asks for two actions. So A and D.
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.
✓
Set the same distance and priority for both static routes
The clue word "first" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
Configure both tunnels to use the same IKE version
Why it's wrong here
IKE version does not affect ECMP.
✗
Set the same phase2 lifetime for both tunnels
Why it's wrong here
Phase2 lifetime does not affect routing.
✓
Enable ECMP in the FortiGate's routing settings
Why this is correct
ECMP must be enabled; it is typically enabled by default, but if disabled, it must be turned on.
Clue confirmation
The clue word "first" in the question point toward this answer.
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.
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: Set the same distance and priority for both static routes — ECMP requires that routes have the same distance and priority. Also, the administrator must enable ECMP in the routing settings. Option A and D are correct: set the same distance and priority for the static routes, and enable ECMP. Note: ECMP is enabled by default in policy-based routing? Actually, for static routes, ECMP is automatically used when multiple routes have the same distance and priority. Option D is correct: enable ECMP in the routing settings (if not already). But the question asks for two actions. So A and D.
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.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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