Question 68 of 952 from exam 200-125: Cisco Certified Network Associate Exam

Question 68 of 952 from exam 200-125: Cisco Certified Network Associate Exam

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Question

You are a junior network engineer for a financial company, and the main office network is experiencing network issues. Troubleshoot the network issues.

Router R1 connects the main office to the Internet, and routers R2 and R3 are internal routers.

NAT is enabled on router R1.

The routing protocol that is enabled between routers R1, R2 and R3 is RIPv2.

R1 sends the default route into RIPv2 for the internal routers to forward Internet traffic to R1.

You have console access on R1, R2 and R3 devices. Use only show commands to troubleshoot the issues.

Users complain that they are unable to reach Internet sites. You are troubleshooting Internet connectivity problem at main office. Which statement correctly identifies the problem on Router R1?

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D.

B

If all users cannot access internet, then R1 is most likely to cause the problem so we should check it first. From the "show running-config" command we will see:

We notice that interface E0/0 (connected to ISP) has been configured as "nat inside" while interfaces E0/1 & E0/2 (connected to our company) have been configured as "nat outside". This is not correct because "nat inside" should be configured with interfaces connected to our company while "nat outside" should be configured with interfaces connected to the internet. Therefore, we can conclude the NAT configuration on these interfaces is not correct.

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