The correct answer is to use VRF route leaking with route maps to export necessary routes between VRFs. This is required because VRFs create isolated routing tables by default, meaning traffic from VRF1 cannot reach a server directly connected to an interface in VRF2 without explicit route sharing. VRF route leaking on FortiGate allows you to selectively import or export routes between VRF instances using route maps, which control which prefixes are shared and can apply attributes like next-hop or metric modifications. On the Fortinet NSE 7 Advanced Security NSE7 exam, this concept tests your understanding of multi-VRF segmentation and inter-VRF communication, often appearing in scenario-based questions where a directly connected server in one VRF must be reachable from another. A common trap is assuming static routes alone suffice—without route leaking, the VRFs remain isolated even with static entries. Memory tip: think of VRFs as separate houses; route leaking is the door you build with a route map as the key that decides who enters.
NSE7 Advanced Networking and SD-WAN Practice Question
This NSE7 practice question tests your understanding of advanced networking and sd-wan. 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 VRF instances (VRF1 and VRF2). The admin needs to allow traffic from VRF1 to reach a server in VRF2. The server is directly connected to the FortiGate on an interface in VRF2. What configuration is required?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use VRF route leaking with route maps to export necessary routes between VRFs
Option D is correct. VRF leaking (route leaking) between VRFs is required to enable communication. Without leaking, VRFs are isolated. A route map or policy can be used to export routes between VRFs.
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.
✗
Add both VRFs to the same VDOM
Why it's wrong here
VRFs can be within the same VDOM, but still isolated without route leaking.
✓
Use VRF route leaking with route maps to export necessary routes between VRFs
Why this is correct
Route leaking allows redistribution of routes between VRFs, enabling inter-VRF communication.
Related concept
Static NAT maps one inside address to one outside address.
✗
Configure a static route in VRF1 pointing to the server's IP via the VRF2 interface
Why it's wrong here
Static routes in one VRF cannot point to an interface in another VRF without leaking.
✗
Configure a firewall policy with source VRF1 and destination VRF2
Why it's wrong here
Firewall policies work within the same VRF by default; they cannot directly forward between VRFs without route leaking.
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 Networking and SD-WAN — This question tests Advanced Networking and SD-WAN — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Use VRF route leaking with route maps to export necessary routes between VRFs — Option D is correct. VRF leaking (route leaking) between VRFs is required to enable communication. Without leaking, VRFs are isolated. A route map or policy can be used to export routes between VRFs.
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.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
About these practice questions
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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. A FortiGate has multiple VRFs configured. An administrator wants to allow traffic from VRF 1 to reach a server in VRF 2. What configuration is required?
medium
A.Use a single VDOM and enable inter-VDOM links.
B.Place both interfaces in the same VRF.
C.Create a static route from one VRF to another.
✓ D.Configure a VRF leak policy using route maps or policy routes.
Why D: VRF leaking is the process of sharing routes between VRFs. This is done by configuring route maps that match specific routes and setting the target VRF, or by using policy routes that override the VRF lookup.
Last reviewed: Jun 21, 2026
Question Discussion
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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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