The answer is that the route is redistributed into BGP from another protocol, as confirmed by the origin code of incomplete and the weight of 32768. When BGP marks a route with origin incomplete, it means the route was not originated via a network command or aggregate—it was redistributed from an IGP or static route, and the next hop of 0.0.0.0 further confirms it is locally originated. On the Cisco CCNP ENARSI 300-410 exam, this specific output tests your ability to differentiate between routes injected via the network command (which show origin IGP) and those redistributed (origin incomplete). A common trap is assuming 0.0.0.0 next hop always indicates a failure, but here it simply means the router itself is the originator. Remember the memory tip: “Incomplete origin means the route’s origin story is incomplete—it was redistributed, not born in BGP.”
300-410 Route Redistribution Practice Question
This 300-410 practice question tests your understanding of route redistribution. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 to troubleshoot a Route Redistribution issue:
R1# show bgp ipv4 unicast 192.168.10.0/24
And sees the following output:
BGP routing table entry for 192.168.10.0/24, version 2
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 is redistributed into BGP from another protocol, as indicated by origin incomplete and weight 32768.
The show bgp ipv4 unicast output shows a route with next hop 0.0.0.0, origin incomplete, and weight 32768. This indicates the route is locally originated, likely via redistribution or network command. Origin incomplete (incomplete) suggests the route was redistributed from another protocol.
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.
✗
The route 192.168.10.0/24 is learned from an EBGP neighbor.
Why it's wrong here
The next hop is 0.0.0.0, which indicates locally originated, not learned from a neighbor.
✗
The route is injected into BGP via the network command, as shown by origin incomplete.
Why it's wrong here
Network command usually sets origin i (IGP). Origin incomplete indicates redistribution.
✓
The route is redistributed into BGP from another protocol, as indicated by origin incomplete and weight 32768.
Why this is correct
Origin incomplete and weight 32768 are typical for redistributed routes.
Clue confirmation
The clue word "best" in the question point toward this answer.
Default route would be 0.0.0.0/0, not 192.168.10.0/24.
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
Network command usually sets origin i (IGP). Origin incomplete indicates redistribution.
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.
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 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.
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: The route is redistributed into BGP from another protocol, as indicated by origin incomplete and weight 32768. — The show bgp ipv4 unicast output shows a route with next hop 0.0.0.0, origin incomplete, and weight 32768. This indicates the route is locally originated, likely via redistribution or network command. Origin incomplete (incomplete) suggests the route was redistributed from another protocol.
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.
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?
OSPF neighbours must agree on key parameters.
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