Add-RemoteAccessRadius

Add-RemoteAccessRadius
    [-ServerName] <String>
    [-SharedSecret] <String>
    [-ComputerName <String>]
    [-Port <UInt16>]
    [-Score <Byte>]
    [-Timeout <UInt32>]
    [-Purpose] <String>
    [-AccountingOnOffMsg <String>]
    [-MsgAuthenticator <String>]
    [-EntrypointName <String>]
    [-PassThru]
    [-CimSession <CimSession[]>]
    [-ThrottleLimit <Int32>]
    [-AsJob]
    [-WhatIf]
    [-Confirm]
    [<CommonParameters>]

The Add-RemoteAccessRadius cmdlet adds a new external RADIUS server for one of the following purposes:

-- Accounting Radius configuration applies to both DirectAccess (DA) and VPN.

-- One-time password (OTP) RADIUS configuration applies only to DA.

-- Authentication Radius configuration applies only to VPN.

Radius server configuration for Accounting and OTP are global in nature, such as the configurations apply to the entire Remote Access deployment. RADIUS server configuration for VPN applies only to a specific VPN server, and all servers in a load balancing cluster, or if multi-site is deployed, to all VPN servers at a site.

Following describes aspects of this cmdlet behavior.

-- If a RADIUS server is currently being used for a specific purpose, then it can be added for additional purpose using this cmdlet.

-- The RADIUS server properties for authentication and accounting are the same except for the AccountingOnOffMsg parameter which is applicable only to accounting RADIUS and the MsgAuthenticator parameter which is applicable only to authentication RADIUS. These properties are not relevant for DA OTP authentication.

-- If a user tries to add a RADIUS server for a particular purpose but specifies a parameter that is not applicable to that purpose, then this cmdlet will still run but the parameter will be ignored and a warning message will be issued. When adding a RADIUS server for OTP authentication both the above described parameters are ignored if specified.

-- If the accounting configuration is Windows Server® 2012 accounting, then a user can switch to external RADIUS accounting by adding an external RADIUS server for the purpose of accounting.

-- Following are some pre-requisites for adding a RADIUS server.

---- A RADIUS server cannot be added for authentication when VPN is not even installed.

---- A RADIUS server cannot be added for authentication when the authentication type is Windows or when local NPS is installed.

---- A RADIUS server cannot be added for the purpose of accounting when external RADIUS accounting is not enabled.

---- A RADIUS server cannot be added for purpose of OTP authentication if OTP authentication is not enabled.

PS C:\>Add-RemoteAccessRadius -ServerName 10.1.2.1 Authentication "s3cr3t2" -PassThru
ServerName   Purpose         Score  Timeout(s)  Port   AccountingOnOffMsg MsgAuthenticator
----------   -------         -----  ----------  ----   ------------------ ----------------
10.1.2.1     Authentication  30     5           1812                      Disabled

This example adds the RADIUS server named 10.1.2.1 for the purpose of VPN authentication.

PS C:\>Add-RemoteAccessRadius -ServerName 10.1.3.1 Accounting "s3cr3t5" -PassThru
ServerName   Purpose         Score  Timeout(s)  Port   AccountingOnOffMsg MsgAuthenticator
----------   -------         -----  ----------  ----   ------------------ ----------------
10.1.3.1     Accounting      30     5           1813   Disabled

This example adds the RADIUS server named 10.1.3.1 for the purpose of accounting for DA and VPN.

This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutBuffer, -OutVariable, -PipelineVariable, -ProgressAction, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.

The Microsoft.Management.Infrastructure.CimInstance object is a wrapper class that displays Windows Management Instrumentation (WMI) objects. The path after the pound sign (#) provides the namespace and class name for the underlying WMI object.

The RemoteAccessRadiusServer object array consists of the following properties:

-- IPv4 or IPv6 address, or host name, of the RADIUS server that was added.

-- The Purpose for which the server was added property: the RADIUS server can be added for VPN authentication, accounting or OTP.

-- Radius initial score.

-- Radius timeout in seconds.

-- Radius port number.

-- For added security, the Radius shared secret property is never populated; it will always show as blank.

-- The Status of accounting on and off messages property is always blank if the RADIUS server was added for authentication or OTP.

-- The Status of message authenticator property is always blank if the RADIUS server was added for accounting or OTP.