The answer is that the route 10.1.1.0/24 is redistributed from an IGP into BGP, as confirmed by the 'Local' path in the show ip bgp output. In BGP, the path attribute field displays 'Local' specifically when a route has been injected into BGP through redistribution rather than learned via a neighbor, with the 'Origin IGP' code further confirming it originated from an interior gateway protocol. This scenario tests your ability to identify redistributed BGP routes with Local path, a key skill for the Cisco CCNP ENARSI 300-410 exam where redistribution between IGPs and BGP is a common troubleshooting focus. A frequent trap is confusing 'Local' with a locally originated network statement—remember that a network statement would show a '0.0.0.0' next-hop, not a remote neighbor like 10.2.2.2. Memory tip: "Local path means local injection, not local learning."
300-410 Route Redistribution Practice Question
This 300-410 practice question tests your understanding of route redistribution. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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 network engineer runs the following command on Router R1:
R1# show ip bgp 10.1.1.0/24
BGP routing table entry for 10.1.1.0/24, version 10
Paths: (1 available, best #1, table default)
Advertised to update-groups:
1
Refresh Epoch 1
Local
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The route 10.1.1.0/24 is redistributed from an IGP into BGP, as indicated by the 'Local' path.
The output shows a BGP route with 'Local' as the path, meaning it was redistributed into BGP locally. The origin is IGP, and the community is 100:200. The route is valid and best. However, the 'Local' path indicates redistribution from an IGP into BGP, which is common in redistribution scenarios.
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 route 10.1.1.0/24 is learned via an eBGP session and has a local preference of 100.
Why it's wrong here
The route is marked as 'Local', meaning it was redistributed from an IGP, not learned via eBGP.
✓
The route 10.1.1.0/24 is redistributed from an IGP into BGP, as indicated by the 'Local' path.
Why this is correct
The 'Local' path attribute in BGP indicates the route was originated locally via network statement or redistribution from an IGP.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
The community 100:200 is automatically assigned by BGP for all redistributed routes.
Why it's wrong here
Communities are not automatically assigned; they must be configured via route-maps.
✗
The route is not being advertised to any peers because it is not marked as best.
Why it's wrong here
The route is marked as best, so it is advertised.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 300-410 question in full detail.
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.
Route Redistribution — This question tests Route Redistribution — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The route 10.1.1.0/24 is redistributed from an IGP into BGP, as indicated by the 'Local' path. — The output shows a BGP route with 'Local' as the path, meaning it was redistributed into BGP locally. The origin is IGP, and the community is 100:200. The route is valid and best. However, the 'Local' path indicates redistribution from an IGP into BGP, which is common in redistribution scenarios.
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: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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