Get ready for the Watchguard Network Security Test. Study with flashcards and multiple choice questions, each with hints and explanations. Prepare for success!

Practice this question and more.


What should be verified if an IKEv2 VPN fails during Phase 2?

  1. Session policies

  2. Network address translation

  3. Encryption proposal

  4. IP address range

The correct answer is: Encryption proposal

When an IKEv2 VPN fails during Phase 2, verifying the encryption proposal is crucial because this phase deals specifically with establishing the secure communication settings agreed upon during the initial negotiation in Phase 1. During Phase 2, the VPN gateway negotiates security associations (SAs) for the actual data transfer; if the proposals for encryption do not match between the peers, Phase 2 will fail. The encryption proposal comprises parameters such as encryption algorithms, integrity checks, and key lifetimes. If there is a mismatch in these settings, the VPN will not be able to successfully establish a secure tunnel, leading to the failure experienced. Therefore, confirming that both ends support and have compatible encryption proposals can resolve issues related to failed connections during this phase.