hardMultiple Choice
300-410 Practice Question: Runs the following command on Router R1: R1# show…
A network engineer runs the following command on Router R1:
R1# show ip bgp neighbors 10.2.2.2 advertised-routes
BGP table version is 10, local router ID is 1.1.1.1 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter, x best-external, a additional-path, c RIB-compressed, Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path *> 10.1.1.0/24 0.0.0.0 0 32768 i *> 10.2.2.0/24 0.0.0.0 0 32768 i
Total number of prefixes 2
Based on this output, what is the problem?
⚠ Common exam trap
The trap here is misinterpreting next hop 0.0.0.0 as an error or as evidence that routes are not being advertised, when in fact it is the normal representation for locally originated BGP routes.
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 routes are correctly advertised with next hop 0.0.0.0, which is normal for locally originated routes.
The output shows two locally originated BGP routes (weight 32768, origin IGP) with next hop 0.0.0.0, which is the standard representation for networks that the local router itself originated into BGP via the network command. The 'advertised-routes' keyword confirms these prefixes are being sent to neighbor 10.2.2.2, so there is no advertisement problem at all. Next hop 0.0.0.0 in the local BGP table simply means 'this router is the origin of the route.'
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 routes are correctly advertised with next hop 0.0.0.0, which is normal for locally originated routes.
Why this is correct
Advertising locally originated networks shows next hop 0.0.0.0, weight 32768 and an empty path — exactly what R1's output displays for both prefixes. The stem's constraint, identifying why the advertisement looks unusual, is satisfied because this is expected BGP behaviour for networks injected via the network command, not a fault.
- ✗
The routes are not being advertised to eBGP peers because the next hop is 0.0.0.0, which is invalid for eBGP.
Why it's wrong here
A next hop of 0.0.0.0 in advertised-routes is normal for locally originated prefixes and is rewritten for eBGP peers. The output shows two prefixes advertised, so no problem exists. This display is used to verify outbound advertisement policy.
- ✗
The routes are being advertised to iBGP peers only, as indicated by the next hop 0.0.0.0.
Why it's wrong here
A next hop of 0.0.0.0 marks locally originated or redistributed routes, not iBGP-only advertisement; the neighbour 10.2.2.2 is external. It is tempting because internal peering does use the local address, and would be correct if the output showed next hops of the router's own interface IP toward iBGP peers.
- ✗
The routes are redistributed from an IGP into BGP, and the next hop is correctly set to 0.0.0.0.
Why it's wrong here
Redistribution into BGP does not set the next hop to 0.0.0.0; that value indicates locally originated routes, and the output shows no problem with the two prefixes. It is tempting because 0.0.0.0 does appear for locally sourced routes, and would be correct if the stem asked how locally originated routes are displayed.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Cisco exam blueprint
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