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• How To Install Cisco VPN Client On Windows 10 | TechRadar
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Windows 8 and newer easily support IKEv2 VPNs, and Windows 7 can as well thoughthe processes are slightly different. The procedure in this section wasperformed on Windows 10, but Windows 8 is nearly identical. The procedure toimport certificates to Windows 7 can be found on the strongSwan Wiki

Import the CA to the Client PC¶

• Export the CA Certificate from pfSense® and download or copy it to the clientPC:

  • Navigate to System > Cert Manager, Certificate Authorities tab onpfSense

  • Click by the CA to download only the certificate

• Locate the downloaded file on the client PC (e.g. VPNCA.crt) as seen in FigureDownloaded CA Certificate

• Double click the CA file

• Click Install Certificate… as shown inCertificate Properties

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Certificate Properties¶

• Select Local Machine as shown inCertificate Import Wizard - Store Location

• Click Next

• Click Yes at the UAC prompt if it appears

• Select Place all Certificates in the following store as shown in FigureCertificate Import Wizard - Browse for the Store

Certificate Import Wizard - Browse for the Store¶

• Click Browse

• Click Trusted Root Certification Authorities as shown in FigureSelect Certificate Store

• Click Next

• Review the details, they should match those in FigureCompleting the Certificate Import Wizard

Completing the Certificate Import Wizard¶

• Click Finish

• Click OK

• Click OK

Setup the VPN Connection¶

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Once the certificate has been properly imported it is time to create the clientVPN connection. The exact steps will vary depending on the version of Windowsbeing used by the client, but will be close to the following procedure.

• Open Network and Sharing Center on the client PC

• Click Set up a new connection or network

• Select Connect to a workplace

• Click Next

• Select No, create a new connection

• Click Next

• Click Use my Internet Connection (VPN)

• Enter the IP address or hostname of the server into the Internet addressfield as shown in FigureWindows IKEv2 VPN Connection Setup Screen

Note

This must match what is in the server certificate Common Name or a configured Subject Alternative Name!

• Enter a Destination Name to identify the connection

• Click Create

The connection has been added but with several undesirable defaults. For examplethe type defaults to automatic. A few settings need to be set by hand firstto ensure a proper connection is made. Refer to FigureWindows IKEv2 VPN Connection Properties

• In Network Connections / Adapter Settings in Windows, find theconnection created above

• Right click the connection

• Click Properties

• Click the Security tab

• Set Type of VPN to IKEv2

• Set Data Encryption to Require Encryption (disconnect if serverdeclines)

• Set Authentication / Use Extensible Authentication Protocol to Microsoft:Secured password (EAP-MSCHAP v2) (encryption enabled)

• Compare the values on the screen to those in FigureWindows IKEv2 VPN Connection Properties

• Click OK

Windows IKEv2 VPN Connection Properties¶

The connection is now ready to use.

Disable EKU Check¶

When the CA and server certificates are made properly on pfSense 2.2.4 andlater, this is not necessary. If an improperly generated server certificate mustbe used for some reason, then the Extended Key Usage check may need to bedisabled on Windows. Disabling this check also disables validation of thecertificate’s common name and SAN fields, so it is potentially dangerous. Anycertificate from the same CA could be used for the server when this is disabled,so proceed with caution.

To disable the extended key usage checks, open up Registry Editor on the Windowsclient and navigate to the following location in the client registry:

How To Install Cisco VPN Client On Windows 10 | TechRadar

In there, add a new DWORD entry named DisableIKENameEkuCheck and set itto 1.

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A reboot may be required to activate the setting.

Advanced Windows IPsec settings¶

With Windows 10 PowerShell cmdlet Set-NetIPsecMainModeCryptoSet it is possible tochange various advanced settings, like IPsec lifetime:

This example modifies the maximum IPsec SA lifetime for the “pfSense IPsec” connection.The default Windows IPsec lifetime is 4800 minutes (eight hours).

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See also

For more information, see Windows 10 IPsec PowerShell cmdlets