Quick Answer
The answer is that the route is locally originated and is the best path. This output from the show bgp ipv4 unicast command reveals a standard IPv4 route with a next hop of 0.0.0.0, which indicates the prefix was injected into BGP locally on the router, and the path is marked as valid, sourced, and best. On the Cisco CCNP ENARSI 300-410 exam, this tests your ability to distinguish between the IPv4 unicast and VPNv4 address families; a common trap is assuming this command shows MPLS labels or extended communities, which only appear under the VPNv4 subaddress family. Remember that show bgp ipv4 unicast displays only global routing table entries without VPN attributes, while VPNv4 is required for L3VPN prefixes. A quick memory tip: if you see 0.0.0.0 as the next hop, think “local origin,” and if you need labels, think “vpnv4.”
This 300-410 practice question tests your understanding of mpls l3vpn. 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 to verify MPLS L3VPN operation:
R1# show bgp ipv4 unicast 10.1.1.0/24
Output: 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
0.0.0.0 from 0.0.0.0 (10.0.0.1)
Origin incomplete, metric 0, localpref 100, weight 32768, valid, sourced, best
What does this output indicate?
Clue words in this question
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.
The route is locally originated and is the best path
The output shows 'sourced' and 'best', indicating local origin and best path.
The route is learned from a BGP peer
Why wrong: Next hop is 0.0.0.0, meaning local origin.
The route has an MPLS label
Why wrong: No MPLS label information is shown in this output.
The route is in a VRF
Why wrong: The output shows 'table default', not a VRF table.
Answer choices
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 locally originated and is the best path
This shows the BGP IPv4 unicast table entry for prefix 10.1.1.0/24. The path is local, with next hop 0.0.0.0, and it is valid and best. This is a standard IPv4 route, not VPNv4, so it does not have extended communities or MPLS labels.
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
For each option: why learners choose it and why it is or isn't the right answer here.
The route is locally originated and is the best path
Why this is correct
The output shows 'sourced' and 'best', indicating local origin and best path.
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 route is learned from a BGP peer
Why it's wrong here
Next hop is 0.0.0.0, meaning local origin.
The route has an MPLS label
Why it's wrong here
No MPLS label information is shown in this output.
The route is in a VRF
Why it's wrong here
The output shows 'table default', not a VRF table.
Common exam traps
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
Command / output trap
No MPLS label information is shown in this output.
Detailed technical explanation
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.
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
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
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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FAQ
MPLS L3VPN — This question tests MPLS L3VPN — Static NAT maps one inside address to one outside address..
The correct answer is: The route is locally originated and is the best path — This shows the BGP IPv4 unicast table entry for prefix 10.1.1.0/24. The path is local, with next hop 0.0.0.0, and it is valid and best. This is a standard IPv4 route, not VPNv4, so it does not have extended communities or MPLS labels.
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.
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.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 18, 2026
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