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When building an interprovider VPN, you notice on the PE router that you have hidden routes which are received from your BGP peer with family inet labeled-unica3t configured.
Which parameter must you configure to solve this problem?
Suggested Answer: C
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The resolve-vpn parameter is a BGP option that allows a router to resolve labeled VPN-IPv4 routes using unlabeled IPv4 routes received from another BGP peer with family inet labeled-unicast configured. This option enables interprovider VPNs without requiring MPLS labels between ASBRs or using VRF tables on ASBRs. In this scenario, you need to configure the resolve-vpn parameter under [edit protocols bgp group external family inet labeled-unicast] hierarchy level on both ASBRs.
16 comments · newest first
ON
Ona
11 months ago
Nope, explicit null is definitely the way to go!
EL
Ellsworth
11 months ago
I thought it was the resolve-vpn parameter?
PO
Portia
12 months ago
Wait, are we sure about that? Seems too simple.
BE
Bernadine
12 months ago
Totally agree, that's the right move!
DA
Dannette
1 year ago
You need to add the explicit null parameter.
AI
Aide
1 year ago
I remember discussing hidden routes, and I think the explicit null option makes sense. But what if it’s the resolve-vpn? I wish I had reviewed that section more thoroughly.
RO
Rosendo
1 year ago
I keep mixing up the OSPF and MPLS configurations. I thought the traffic-engineering parameter was important, but I can't recall which hierarchy it belongs to.
GE
Gerald
1 year ago
I'm not entirely sure, but I feel like the resolve-vpn parameter could be the right choice. We had a similar question in our study group.
CH
Christoper
1 year ago
I think we might need to add the explicit null parameter under the family inet labeled-unicast. I remember something about that from our last practice session.
SH
Sherron
1 year ago
This seems straightforward. The "resolve-vpn" parameter under the "family inet labeled-unicast" hierarchy is likely the solution to the problem described in the question.
RI
Rikki
1 year ago
Okay, I think I've got this. The "explicit null" parameter under the "family inet labeled-unicast" hierarchy should do the trick to solve the problem.
HY
Hyman
1 year ago
Hmm, the key seems to be the "family inet labeled-unicast" configuration on the PE router. I'm guessing we need to add a parameter under that hierarchy to resolve the issue.
CL
Claudio
1 year ago
This looks like a tricky one. I'll need to carefully read through the options and think about what the "hidden routes" and "family inet labeled-unicast" configuration might be indicating.
ME
Merilyn
1 year ago
I'm a bit confused by the terminology here. "Hidden routes" and "family inet labeled-unicast" aren't terms I'm super familiar with. I'll need to think this through carefully.
VA
Valentin
1 year ago
I think I know the answer to this one. Gateway-required virtual network integration should do the trick and restrict access to the web apps through the Front Door instance. I'm pretty confident in this solution.
LA
Lai
1 year ago
Whoa, this is a lot of networking stuff to remember. I better make sure I have the syntax for those nmcli commands down before I try this on the exam.