- A
The stub router must also have `redistribute static` configured under the EIGRP process for the static route to be advertised.
The `eigrp stub static` keyword only permits advertisement of static routes that are already in the EIGRP topology; redistribution is required first.
- B
The hub router has a route filter that blocks the static route due to administrative distance mismatch.
Why wrong: Administrative distance does not affect advertisement; redistribution is the issue.
- C
The stub router is configured with `eigrp stub connected static` but the static route is not directly connected, so it is ignored.
Why wrong: Static routes are not required to be directly connected; the keyword 'static' refers to static routes in the routing table.
- D
The stub router must use `eigrp stub receive-only` to advertise static routes.
Why wrong: `receive-only` prevents all outbound advertisements, which is opposite of what is needed.
Quick Answer
The answer is that the static route is not advertised because the `eigrp stub connected static` command alone does not perform redistribution; the stub router must also have `redistribute static` explicitly configured under the EIGRP process. The `eigrp stub connected static` command only instructs the stub router which types of routes it is allowed to advertise, but it does not inject those routes into the EIGRP topology table—redistribution is a separate action required to move a static route into the EIGRP domain. On the Cisco CCNP ENARSI 300-410 exam, this distinction is a common trap: candidates often assume that including the `static` keyword in the stub command automatically redistributes static routes, but it only permits their advertisement if they are already redistributed. The hub router learns the connected route because a directly connected network is automatically part of the EIGRP process, whereas a static route must be explicitly redistributed. A helpful memory tip is to think of the stub command as a gatekeeper that says “you may advertise these types,” while `redistribute static` is the key that actually lets them into EIGRP.
300-410 EIGRP Troubleshooting Practice Question
This 300-410 practice question tests your understanding of eigrp troubleshooting. 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.
An engineer configures EIGRP stub with `eigrp stub connected static` on a remote router. The remote router has a directly connected network and a static route redistributed into EIGRP. Unexpectedly, the hub router does not receive the static route, although the connected route is learned. Which is the most likely explanation?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
The stub router must also have `redistribute static` configured under the EIGRP process for the static route to be advertised.
The `eigrp stub connected static` command only advertises connected and static routes that are directly configured on the stub router, but it does not automatically redistribute the static route into EIGRP unless redistribution is explicitly configured. The stub command only controls which routes are advertised, not the redistribution process. Without `redistribute static` under the EIGRP process, the static route is not injected into EIGRP.
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.
- ✓
The stub router must also have `redistribute static` configured under the EIGRP process for the static route to be advertised.
Why this is correct
The `eigrp stub static` keyword only permits advertisement of static routes that are already in the EIGRP topology; redistribution is required first.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
The hub router has a route filter that blocks the static route due to administrative distance mismatch.
Why it's wrong here
Administrative distance does not affect advertisement; redistribution is the issue.
- ✗
The stub router is configured with `eigrp stub connected static` but the static route is not directly connected, so it is ignored.
Why it's wrong here
Static routes are not required to be directly connected; the keyword 'static' refers to static routes in the routing table.
- ✗
The stub router must use `eigrp stub receive-only` to advertise static routes.
Why it's wrong here
`receive-only` prevents all outbound advertisements, which is opposite of what is needed.
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.
Trap categories for this question
Keyword trap
Static routes are not required to be directly connected; the keyword 'static' refers to static routes in the routing table.
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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EIGRP Troubleshooting — study guide chapter
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FAQ
Questions learners often ask
What does this 300-410 question test?
EIGRP Troubleshooting — This question tests EIGRP Troubleshooting — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The stub router must also have `redistribute static` configured under the EIGRP process for the static route to be advertised. — The `eigrp stub connected static` command only advertises connected and static routes that are directly configured on the stub router, but it does not automatically redistribute the static route into EIGRP unless redistribution is explicitly configured. The stub command only controls which routes are advertised, not the redistribution process. Without `redistribute static` under the EIGRP process, the static route is not injected into EIGRP.
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: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
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