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Microsoft AZ-720: Troubleshooting Azure Virtual Network Gateway Phase 1 Proposal Issues

By: Author Alex Lim

Posted on

Categories Exam

Learn how to troubleshoot Phase 1 proposal issues with Azure Virtual Network gateway by analyzing the correct diagnostic log. Discover the key log for resolving site-to-site VPN connection problems.

Table of Contents

Question

A company deploys an Azure Virtual Network gateway. The company connects to the gateway by using a site-to-site VPN connection.

The company’s on-premises VPN gateway is reporting an issue with the Phase 1 proposal from the Azure Virtual Network gateway.

You need to troubleshoot the issue by reviewing the logs.

Which log should you analyze?

A. GatewayDiagnosticLog
B. P2SDiagnosticLog
C. RouteDiagnosticLog
D. IKEDiagnosticLog

Answer

D. IKEDiagnosticLog

Explanation

IKEDiagnosticLog is the correct log to analyze when troubleshooting Phase 1 proposal issues with an Azure Virtual Network gateway. This log contains detailed information about Internet Key Exchange (IKE) negotiations, which are crucial for establishing secure site-to-site VPN connections.

IKE is a protocol used to set up a secure, authenticated communication channel between the on-premises VPN gateway and the Azure Virtual Network gateway. It involves two phases:

  1. Phase 1: Establishes a secure, authenticated channel for negotiating Phase 2 parameters.
  2. Phase 2: Negotiates the IPsec security associations (SAs) to establish the encrypted VPN tunnel.

By examining the IKEDiagnosticLog, you can identify any issues related to the Phase 1 proposal, such as mismatched encryption algorithms, authentication methods, or Diffie-Hellman groups. This log provides valuable insights into the negotiation process and helps pinpoint the cause of the connectivity problem.

The other logs mentioned are not directly relevant to troubleshooting Phase 1 proposal issues:

  • GatewayDiagnosticLog: Provides general information about gateway operations and events.
  • P2SDiagnosticLog: Focuses on Point-to-Site (P2S) VPN connections, not site-to-site.
  • RouteDiagnosticLog: Contains information about routing-related events and issues.

Troubleshooting Microsoft Azure Connectivity AZ-720 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Troubleshooting Microsoft Azure Connectivity AZ-720 exam and earn Troubleshooting Microsoft Azure Connectivity AZ-720 certification.