The correct answer is to add static routes with the 'vrf' keyword to point to the other VRF's next hop. This is required because VRF-Lite inherently provides Layer 3 isolation between routing tables, so CUSTOMER_F and CUSTOMER_G cannot exchange traffic by default; route leaking must be explicitly configured to bridge the separate VRF instances. On the Cisco CCNP ENARSI 300-410 exam, this scenario tests your understanding of inter-VRF communication without MPLS, often appearing in troubleshooting questions where a candidate mistakenly assumes a shared interface or a single routing table. A common trap is forgetting that the static route must include both the source VRF (via the `ip route vrf` command) and the destination VRF’s next-hop interface, or attempting to use a dynamic protocol without proper redistribution. Memory tip: think of VRFs as separate rooms—you need a door (static route) with a key (the 'vrf' keyword) to walk between them.
300-410 VRF-Lite Practice Question
This 300-410 practice question tests your understanding of vrf-lite. 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.
Examine this partial configuration:
```
interface GigabitEthernet0/0
ip vrf forwarding CUSTOMER_F
ip address 10.10.10.1 255.255.255.0
!
interface GigabitEthernet0/1
ip vrf forwarding CUSTOMER_G
ip address 10.10.20.1 255.255.255.0
```
What is required to enable communication between VRF CUSTOMER_F and VRF CUSTOMER_G?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Add static routes with the 'vrf' keyword to point to the other VRF's next hop.
By default, VRFs are isolated. To enable communication between them, route leaking must be configured, typically using static routes with the 'vrf' keyword or using route-replicate commands.
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.
✗
No additional configuration is needed; VRFs can communicate by default.
Why it's wrong here
Incorrect. VRFs are isolated by design.
✗
Configure a route-map and import/export route-targets between the VRFs.
Why it's wrong here
Incorrect. Route-targets are used with MP-BGP; for VRF-Lite, route leaking is done via static routes or route-replicate.
✓
Add static routes with the 'vrf' keyword to point to the other VRF's next hop.
Why this is correct
This is correct. Static routes can be used to leak routes between VRFs.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use the 'ip route vrf' command to create a global route that points to the VRF interface.
Why it's wrong here
Incorrect. The 'ip route vrf' command is used to add routes to a VRF's routing table, not to leak between VRFs directly.
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.
Trap categories for this question
Command / output trap
Incorrect. The 'ip route vrf' command is used to add routes to a VRF's routing table, not to leak between VRFs directly.
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 300-410 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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 300-410 question in full detail.
Identify which 300-410 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.
VRF-Lite — This question tests VRF-Lite — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Add static routes with the 'vrf' keyword to point to the other VRF's next hop. — By default, VRFs are isolated. To enable communication between them, route leaking must be configured, typically using static routes with the 'vrf' keyword or using route-replicate commands.
What should I do if I get this 300-410 question wrong?
Identify which 300-410 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.
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. Drag and drop the steps to configure inter-VRF route leaking using static routes in VRF-Lite into the correct order, from first to last.
medium
✓ A.Define VRFs and assign route distinguisher
✓ B.Configure import and export route targets
✓ C.Assign interfaces to each VRF
✓ D.Configure static routes with VRF keyword
✓ E.Verify leaked routes in VRF routing table
Why A: First, define both VRFs and assign an RD. Then configure the import/export RTs to allow route exchange. Next, assign interfaces to the respective VRFs. After that, configure static routes pointing to the next-hop in the other VRF. Finally, verify the leaked routes are present in the VRF routing table.
Last reviewed: Jun 18, 2026
Question Discussion
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This 300-410 practice question is part of Courseiva's free Cisco 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 300-410 exam.
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