Question 1mediumdrag order
Study the full IPv6 explanation →Question 1,452 of 2,152
Quick Answer
The correct order for configuring a GRE over IPv4 tunnel is: create the tunnel interface, assign an IPv6 address, set the tunnel source, set the tunnel destination, and finally configure the tunnel mode as 'tunnel mode gre ip'. This sequence follows the Cisco IOS-XE workflow because the tunnel interface must first exist to accept addressing and parameters, the source and destination define the IPv4 transport endpoints, and the tunnel mode must be set last to avoid protocol mismatches during configuration. On the CCNP ENARSI 300-410 exam, this drag-and-drop task tests your understanding of GRE tunnel encapsulation for IPv6 over IPv4, a common scenario for connecting isolated IPv6 networks across an IPv4 backbone. A frequent trap is placing the tunnel mode step too early, which can cause the interface to reject subsequent commands, or forgetting that the tunnel source must be an existing interface or IP on the local router. A helpful memory tip is "Interface, IP, Source, Destination, Mode" — think of it as "IISDM" (like "I is the mode") to lock in the correct order.
300-410 IPv6 Tunneling Techniques Practice Question
This 300-410 practice question tests your understanding of ipv6 tunneling techniques. 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.
Drag and drop the steps to configure a GRE tunnel for IPv6 over IPv4 into the correct order, from first to last.
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 choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create tunnel interface with 'interface tunnel0'
The correct order follows the standard Cisco IOS-XE GRE tunnel configuration workflow: first create the tunnel interface, then assign an IPv6 address, set the tunnel source (physical interface or IP), set the tunnel destination (IPv4 address of the remote endpoint), and finally configure the tunnel mode as GRE IPv6.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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 300-410 NAT questions on configuration and troubleshooting.
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IPv6 Tunneling Techniques — study guide chapter
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FAQ
Questions learners often ask
What does this 300-410 question test?
IPv6 Tunneling Techniques — This question tests IPv6 Tunneling Techniques — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Create tunnel interface with 'interface tunnel0' — The correct order follows the standard Cisco IOS-XE GRE tunnel configuration workflow: first create the tunnel interface, then assign an IPv6 address, set the tunnel source (physical interface or IP), set the tunnel destination (IPv4 address of the remote endpoint), and finally configure the tunnel mode as GRE IPv6.
What should I do if I get this 300-410 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 300-410 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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Last reviewed: Jun 18, 2026
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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