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Assume all router-IDs are properly configured, and IPv6 link-local addresses are used to establish all eBGP sessions. Given the following iBGP configuration on router A, what is the Next Hop for prefix 2001:DB8:A:401::1/128 on router B?
Suggested Answer: C
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16 comments · newest first
CH
Christene
11 months ago
I think it's the link-local address of router A towards D.
LO
Long
11 months ago
It's definitely not the global address of router A.
AN
Annabelle
11 months ago
Wait, are we sure about that? Seems a bit off.
VI
Vilma
12 months ago
Totally agree, that's how iBGP works!
FR
Frederica
12 months ago
The Next Hop is the IPv6 link-local address of router D towards A.
SH
Shaunna
12 months ago
Based on what I studied, I believe the Next Hop is the IPv6 link-local address of router D towards router A, but I could be mixing it up with another scenario.
SL
Slyvia
1 year ago
I’m a bit confused about whether it’s the global address or the link-local address that should be used here. I need to double-check the iBGP rules.
CL
Clarinda
1 year ago
I remember a practice question where we had to identify the Next Hop in a similar iBGP setup. I think it was about the link-local addresses too.
IR
Ira
1 year ago
I think the Next Hop should be the IPv6 link-local address of router A towards router D, but I'm not entirely sure.
PE
Peggy
1 year ago
I'm not entirely sure about this one. I'll need to walk through the iBGP configuration step-by-step to determine the correct next hop for the prefix.
MI
Michell
1 year ago
Okay, I think I've got this. Since the question states that all router-IDs are properly configured, the next hop should be the IPv6 link-local address of the router D interface towards router A.
TE
Teddy
1 year ago
Hmm, I'm a bit confused by the IPv6 link-local addresses and how they're used to establish the eBGP sessions. I'll need to review my notes on that.
CR
Crista
1 year ago
This looks like a tricky BGP question. I'll need to carefully analyze the iBGP configuration on router A and the network topology to determine the next hop.
EL
Elfriede
1 year ago
This looks like a straightforward question on defining valid constraints. I'll focus on identifying the key characteristics of a valid constraint.
MA
Marci
1 year ago
I'm leaning towards A because I remember reading about color coding for quick identification, but B also feels right given the emphasis on routine checks.
AL
Alline
1 year ago
Okay, let's see. I know we need the right development environment, but I'm not sure if it's Visual Studio 2019 Enterprise or 2015 Professional. And what about the sandbox environment - Tier-1 or Tier-2? I'll have to review the details.