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300-410 Exam - Question 154


Refer to the exhibit. An IPv6 network was newly deployed in the environment, and the help desk reports that R3 cannot SSH to the R2s Loopback interface.

Which action resolves the issue?

Show Answer
Correct Answer: C

R3 cannot SSH to R2's Loopback interface because line 30 of the access list explicitly denies SSH (port 22) traffic from the subnet 2002:ABC:2000::/36 to the host 2000:ABC:20:2:2::2 (R2). Since SSH traffic is on port 22, modifying line 30 to permit such traffic instead of denying it will resolve the issue. This will allow SSH traffic from the specified subnet to reach R2's Loopback interface.

Discussion

8 comments
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examShark
Aug 4, 2021

The given answer is correct

GreatDaneOption: C
Jul 28, 2022

Line 30 of the ACL denies SSH (port 22) traffic from subnet 2002:ABC:2000::/36 to host 2000:ABC:20:2:2::2 (R2). Here is the problem. A. Modify line 10 of the access list to permit instead of deny. Wrong answer. B. Remove line 60 from the access list. Wrong answer. C. Modify line 30 of the access list to permit instead of deny. Correct answer. D. Remove line 70 from the access list. Wrong answer.

enterTheDevOps
Jan 19, 2022

I haven't done a ton of IPv6, but... how is the answer correct? It looks to be permitted one way, but return traffic is denied. shouldn't the modification have "permit tcp R2 eq 22 r3"?

enterTheDevOps
Jan 19, 2022

Cancel that, I see it. I was mistaken. The given answer is correct

BigmikemaltaOption: C
Apr 23, 2022

Given answer is correct

CalyfasOption: A
Mar 2, 2023

Given answer is correct.

HungarianDishOption: C
May 31, 2023

network range: 2002:0abc:2000:0000:0000:0000:0000:0000 - 2002:0abc:2fff:ffff:ffff:ffff:ffff:ffff

inteldarvidOption: C
Jul 12, 2023

correct C

SeMo0o0o0Option: C
Jul 19, 2024

C is correct