- A
show ip route eigrp
Correct. This command displays EIGRP routes in the routing table. If OSPF routes are successfully redistributed into EIGRP, they will appear as EIGRP routes (usually marked with 'D EX' for external).
- B
show ip eigrp topology
Correct. The EIGRP topology table includes all routes learned via EIGRP, including redistributed routes. This command can verify that the redistributed routes are present in EIGRP.
- C
show ip ospf database
Why wrong: Incorrect. This command shows the OSPF link-state database, which contains OSPF LSAs. It does not show redistributed routes into EIGRP.
- D
show ip protocols
Why wrong: Incorrect. This command shows routing protocol configurations, including redistribution statements, but does not show whether the redistribution is actually working or which routes are being redistributed.
- E
show ip route ospf
Why wrong: Incorrect. This command shows OSPF routes in the routing table, not EIGRP. It would show the original OSPF routes, not the redistributed ones.
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.
An engineer is redistributing OSPF routes into EIGRP. Which TWO commands can be used to verify that the redistribution is working correctly? (Choose TWO.)
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
show ip route eigrp
To verify redistribution, you can check the routing table of the receiving protocol (EIGRP) to see if the redistributed routes appear. Additionally, 'show ip eigrp topology' shows the EIGRP topology table, which includes redistributed routes. 'show ip ospf database' is for OSPF LSDB and does not show redistributed routes into EIGRP. 'show ip protocols' shows redistribution configuration but not active routes. 'show ip route eigrp' shows only EIGRP routes, but if redistribution is working, those routes should appear there.
Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
show ip route eigrp
- ✓
show ip eigrp topology
- ✗
show ip ospf database
- ✗
show ip protocols
Why it's wrong here
Incorrect. This command shows routing protocol configurations, including redistribution statements, but does not show whether the redistribution is actually working or which routes are being redistributed.
- ✗
show ip route ospf
Common exam traps
Common exam trap: OSPF can fail even when IP connectivity looks correct
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Trap categories for this question
Command / output trap
Incorrect. This command shows the OSPF link-state database, which contains OSPF LSAs. It does not show redistributed routes into EIGRP.
Detailed technical explanation
How to think about this question
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
KKey Concepts to Remember
- OSPF neighbours must agree on key parameters.
- Router ID selection can affect neighbour relationships and LSDB output.
- OSPF cost influences the preferred path.
- A route can appear in OSPF information but not become the installed route.
TExam Day Tips
- Check area mismatch first when OSPF adjacency fails.
- Review passive interfaces when a network is advertised but no neighbour forms.
- Use show ip ospf neighbor and show ip route clues carefully.
Key takeaway
OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Real-world example
How this comes up in practice
A network engineer at a university connects two campus buildings via a fibre link. Both routers run OSPF, but no adjacency forms — even though both routers can ping each other. The engineer finds one router is in area 0 and the other in area 1. OSPF adjacency requires matching area numbers, hello/dead timers, and network type. IP reachability alone is not enough.
What to study next
Got this wrong? Here's your next step.
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 300-410 OSPF questions on adjacency and route selection.
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FAQ
Questions learners often ask
What does this 300-410 question test?
Route Redistribution — This question tests Route Redistribution — OSPF neighbours must agree on key parameters..
What is the correct answer to this question?
The correct answer is: show ip route eigrp — To verify redistribution, you can check the routing table of the receiving protocol (EIGRP) to see if the redistributed routes appear. Additionally, 'show ip eigrp topology' shows the EIGRP topology table, which includes redistributed routes. 'show ip ospf database' is for OSPF LSDB and does not show redistributed routes into EIGRP. 'show ip protocols' shows redistribution configuration but not active routes. 'show ip route eigrp' shows only EIGRP routes, but if redistribution is working, those routes should appear there.
What should I do if I get this 300-410 question wrong?
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 300-410 OSPF questions on adjacency and route selection.
What is the key concept behind this question?
OSPF neighbours must agree on key parameters.
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Last reviewed: Jun 18, 2026
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