100-140 Question 229
Select 4You are troubleshooting connectivity issues on an IPv6-enabled network. You decide to use the ping6 command to test connectivity to a remote server. Which of the following steps should you perform to ensure the command runs successfully?
- A
Ensure the target server has an IPv6 address assigned.
- B
Verify that the local machine has IPv6 enabled and properly configured.
- C
Use the
-4flag to force the use of IPv4 for testing. - D
Check that ICMPv6 traffic is allowed through any firewalls between the source and target.
- E
Ensure the DNS record for the target server includes an AAAA record.
Show answer and explanation
Correct answers: A, B, D, E
Explanation
To successfully use the ping6 command, both the source and target systems must have IPv6 enabled and properly configured. Additionally, firewalls must allow ICMPv6 traffic, and if using a hostname, the DNS must resolve it to an IPv6 address via an AAAA record. The -4 flag is irrelevant for ping6 since it explicitly tests IPv6 connectivity.
- A. Correct.
Correct: The
ping6command tests IPv6 connectivity, so the target server must have an IPv6 address assigned. - B. Correct.
Correct: The local machine must have IPv6 enabled and properly configured to use the
ping6command. - C. Incorrect.
Incorrect: The
-4flag forces the use of IPv4, which is not applicable to theping6command intended for IPv6 testing. - D. Correct.
Correct: ICMPv6 traffic must be allowed through firewalls, as
ping6uses ICMPv6 for testing IPv6 connectivity. - E. Correct.
Correct: The DNS record for the target server must include an AAAA record for the
ping6command to resolve the IPv6 address.