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Cisco 300-410 Exam - Topic 15 Question 121 Discussion

An engineer configured VRF-Lite on a router for VRF blue and VRF red. OSPF must be enabled on each VRF to peer to a directly connected router in each VRF. Which configuration forms OSPF neighbors over the network 10.10.10.0/28 for VRF blue and 192.168.0.0/30 for VRF red?
A) Option A
C) Option C
D) Option D
B) Option B

Cisco 300-410 Exam - Topic 15 Question 121 Discussion

Actual exam question for Cisco's 300-410 exam
Question #: 121
Topic #: 15
[All 300-410 Questions]

An engineer configured VRF-Lite on a router for VRF blue and VRF red. OSPF must be enabled on each VRF to peer to a directly connected router in each VRF. Which configuration forms OSPF neighbors over the network 10.10.10.0/28 for VRF blue and 192.168.0.0/30 for VRF red?

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Suggested Answer: A

by Armanda at Jan 22, 2026, 02:35 PM

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Odette
2 months ago
Right! OSPF needs to be configured separately for each VRF. It’s all about isolation.
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Janey
2 months ago
For VRF blue, I’d use network 10.10.10.0 area 0. For VRF red, network 192.168.0.0 area 0.
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Jean
2 months ago
Agreed! I feel like the subnetting part is crucial here.
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Mammie
2 months ago
This question is tricky! I think it tests our understanding of VRF and OSPF.
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Leontine
4 months ago
I thought OSPF only worked on a single routing table, not VRFs.
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Karrie
4 months ago
The subnets look good for peering, should work fine.
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Lorean
4 months ago
Wait, can you really run OSPF in multiple VRFs like that?
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Diane
4 months ago
Totally agree, VRF isolation is key!
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Nakita
5 months ago
OSPF needs to be configured separately for each VRF.
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Dino
5 months ago
Option B is definitely the way to go for this OSPF setup.
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Amalia
5 months ago
Haha, I bet the engineer who configured this is a real VRF wizard!
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Shelia
5 months ago
Option B seems like the right choice here.
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Loren
5 months ago
I'm pretty sure Option B is the correct answer.
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Aja
5 months ago
Option B looks good to me.
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Edna
6 months ago
I think we have to use the "router ospf" command within each VRF, but I'm not confident about how to define the networks correctly for both VRFs.
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Shawnee
6 months ago
I feel a bit lost on the subnet masks for the OSPF networks. I think they need to match the interfaces, but I can't recall the specifics.
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Kerrie
7 months ago
This question is similar to one we practiced where we had to configure OSPF for different VRFs. I think we need to specify the VRF before the OSPF configuration.
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Lacresha
7 months ago
I remember that OSPF needs to be configured under each VRF context, but I'm not sure about the exact commands for the network statements.
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Georgene
7 months ago
Wait, do I need to configure anything else besides the OSPF network statements? I want to make sure I don't miss anything.
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Nadine
7 months ago
No problem, I've got this. I just need to make sure I get the OSPF network statements right for each VRF.
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Gracia
7 months ago
Okay, let me think this through step-by-step. I need to configure OSPF for each VRF on the specified networks.
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Joye
7 months ago
Hmm, I'm a bit unsure about the VRF-Lite part. I'll need to review my notes on that before attempting this.
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Yoko
8 months ago
This looks like a pretty straightforward OSPF configuration question. I think I can handle this.
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Vi
1 month ago
Don't forget the network statements for each subnet!
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Martina
1 month ago
Right, separate configurations for each VRF.
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Ora
2 months ago
OSPF needs to be enabled in both VRFs.
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