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Windows Server® 2008 Networking and Network Access Protection (NAP) by Microsoft Networking Team, Tony Northrup, Joseph Davies

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Troubleshooting

Because of the different components and processes involved, troubleshooting a VPN enforcement deployment can be a difficult task. This section describes the troubleshooting tools that are provided with Windows Server 2008 and Windows Vista and how to troubleshoot VPN enforcement starting from the NAP client.

Troubleshooting Tools

Microsoft provides the following tools to troubleshoot VPN enforcement:

  • TCP/IP troubleshooting tools

  • Netsh tool

  • NAP client event logging

  • NPS event logging

  • NPS authentication and accounting logging

  • Netsh NAP tracing

  • Tracing

  • VPN server event logging

  • Network Monitor 3.1

TCP/IP Troubleshooting Tools

The Ipconfig tool displays the state of a NAP client. At a command prompt on a NAP client, run the ipconfig /all command. ...

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