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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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23 comments · newest first
VE
Vernice
2 days ago
I vote for D. The global address of router D might be the answer.
DO
Dominga
7 days ago
C is less likely. The link-local addresses are more relevant for eBGP.
KE
Kendra
12 days ago
I’m not sure, but I think C could be a possibility too.
FR
Francoise
18 days ago
I feel confident about B. It’s the direct connection to router D.
MA
Marica
23 days ago
A is a good choice, but I still think B is more accurate.
NO
Noble
28 days ago
I’m leaning towards A. The link-local from router D could be the next hop.
PE
Pearlene
1 month ago
I agree, B makes sense. Router A's link-local is key here.
CO
Corinne
1 month ago
This question is tricky! I think it's B.
HI
Hildred
1 month ago
C could work, but I still prefer B for this scenario.
JO
Jonell
2 months ago
I think it’s C. The global address is more reliable.
DO
Dorathy
2 months ago
I disagree, A is not right. B is definitely the correct choice.
GA
Gaston
2 months ago
I’m leaning towards A. The link-local should be the next hop.
KA
Kaitlyn
2 months ago
I feel the same! B makes sense with the link-local addresses.
VE
Verda
2 months ago
This question is tricky! I think it's B.
PR
Providencia
2 months ago
I'm not sure about this... can someone explain why link-local is preferred?
PA
Pamela
3 months ago
Totally agree with Luisa, link-local is the way to go!
LA
Lajuana
3 months ago
Wait, why would it be a global address? That seems off.
MA
Marica
3 months ago
I think it's actually the global address of router A.
LU
Luisa
3 months ago
It's definitely the IPv6 link-local address of router A towards router D.
RO
Roslyn
3 months ago
I recall that in iBGP, the Next Hop is typically the router that sent the route update. So, I’m leaning towards the link-local address of router A, but I could be mixing up some details.
BR
Brock
4 months ago
This question feels similar to one we practiced where we had to determine the Next Hop based on the iBGP configuration. I think it might be the global address of router A, but I'm not completely confident.
AS
Asuncion
4 months ago
I think the Next Hop should be the IPv6 link-local address of router A since it's the one advertising the prefix, but I need to double-check that.
JE
Jesusa
4 months ago
I remember that the Next Hop in iBGP usually points to the router that originated the route, but I'm not entirely sure how that applies here with link-local addresses.