VCP-VMC 2024 Question 198
Single answerA VMware Cloud on AWS environment is experiencing intermittent connectivity issues between the on-premises data center and the VMware Cloud SDDC. After reviewing the configuration, you notice that the VPN tunnel occasionally drops and takes several minutes to re-establish. Which action would most likely resolve this issue?
- A
Verify that the on-premises VPN device supports the same IKE version as the VMware Cloud SDDC.
- B
Increase the MTU size for the VPN connection to reduce overhead and improve reliability.
- C
Configure static routes instead of dynamic routing protocols like BGP to reduce complexity.
- D
Ensure that the VPN pre-shared key (PSK) matches on both the on-premises device and VMware Cloud SDDC.
Show answer and explanation
Correct answer: A
Explanation
Intermittent VPN connectivity issues are often caused by configuration mismatches, such as IKE version incompatibilities. Ensuring the on-premises VPN device and VMware Cloud SDDC are using a compatible IKE version is a key troubleshooting step to resolve such problems.
- A. Correct.
Mismatch in IKE versions can cause issues with VPN stability. Ensuring that both the on-premises VPN device and VMware Cloud SDDC are using a compatible IKE version is critical for a stable connection.
- B. Incorrect.
Increasing the MTU size may cause fragmentation issues and is unlikely to resolve intermittent VPN tunnel drops.
- C. Incorrect.
While static routes can reduce complexity, they are not related to the root cause of intermittent VPN connection drops.
- D. Incorrect.
A mismatched PSK would prevent the VPN from establishing at all, not cause intermittent issues.