Sets the authentication type to be used for connecting to a VPN.
Networking / Security · Risk: High · Documentation Verified
Last verified: 2026-10-26
Microsoft RemoteAccess reference: Sets the authentication type to be used for connecting to a VPN. The syntax and selected example below are adapted from the pinned Windows Server 2025 reference. Module availability, target configuration and delegated permissions determine whether it can run in your environment. Documentation and parameter text: Microsoft, CC BY 4.0; formatting adapted by Cmdlet World. No execution testing is claimed.
Use an account with the target resource permissions documented for Set-VpnAuthType. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.
Supported environments
Windows / RemoteAccess · Windows Server 2025 documentation; feature/module prerequisites apply
Parameters
-AsJob
Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete.
-CimSession
Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession or Get-CimSession cmdlet. The default is the current session on the local computer.
-ComputerName
Specifies the IPv4 or IPv6 address, or host name, of the computer on which the VPN server computer specific tasks should be run. If this parameter is specified, then the authentication type is configured for that VPN server.
-Confirm
Prompts you for confirmation before running the cmdlet.
-EntrypointName
Identifies a site in a multi-site deployment for which the authentication type needs to be configured. If this parameter is not specified in a multi-site deployment, then this parameter value on which the cmdlet is run is used. The server could also be represented by using the ComputerName parameter. If this parameter and the ComputerName parameter are specified and the ComputerName does not belong to the site represented by this parameter, then this parameter takes precedence and the authentication type is configured for it.
-MsgAuthenticator
Specifies the enabled state for the usage of message authenticator. The acceptable values for this parameter are: -- Enabled. -- Disabled. This is the default value. This parameter can be configured only if the Type parameter is specified to be ExternalRadius.
-PassThru
Returns an object representing the item with which you are working. By default, this cmdlet does not generate any output.
-RadiusPort
Specifies the port number on which the RADIUS server is accepting authentication requests. The default value is 1813. This parameter can be configured only if the Type parameter is specified to be ExternalRadius.
-RadiusScore
Specifies the initial score. The default value is 30. This parameter can be configured only if the Type parameter is specified to be ExternalRadius.
-RadiusServer
Specifies the IPv4 or IPv6 address, or host name, of the external RADIUS server that is used for accounting. This parameter can be configured only if the Type parameter is specified to be ExternalRadius. Specifying the corresponding shared secret is mandatory. The default values can be used for the other parameters.
-RadiusTimeout
Specifies the RADIUS time out value, in seconds. The default value is 5 seconds. This parameter can be configured only if the Type parameter is specified to be ExternalRadius.
-SharedSecret
Specifies the shared secret between the Remote Access server and the specified external RADIUS server which is required for successful communication between the two servers. Note: The secret is specified in clear text. This parameter can be configured only if the Type parameter is specified to be ExternalRadius. When specifying a RADIUS server for authentication, it is mandatory to also specify the shared secret. The default values can be used for the other parameters.
-ThrottleLimit
Specifies the maximum number of concurrent operations that can be established to run the cmdlet. If this parameter is omitted or a value of 0 is entered, then Windows PowerShell® calculates an optimum throttle limit for the cmdlet based on the number of CIM cmdlets that are running on the computer. The throttle limit applies only to the current cmdlet, not to the session or to the computer.
-Type (required)
Specifies the authentication type. The acceptable values for this parameter are: -- Windows. -- ExternalRadius.
-WhatIf
Shows what would happen if the cmdlet runs. The cmdlet is not run.
Prerequisites
Windows with the RemoteAccess module and the Windows feature or management tools that provide it. Confirm target connectivity and version compatibility using the linked Microsoft reference.
Security considerations
This cmdlet changes system state. Review every target and parameter in the official reference, test outside production, and prepare an appropriate backup or rollback. Do not execute the example automatically.
This example sets the VPN authentication type to be ExternalRadius. A RADIUS server is specified along with the shared secret required to communicate with that RADIUS server. Source: Microsoft, CC BY 4.0; transcript prompt/output removed. This example was not executed.