Take note of the new shared secret string as you'll need to fill it out later during Defender for Identity Configuration.

Select Change and type a new shared secret string of alphanumeric characters. Under Port, make sure the default of 1813 is configured. For high availability, you can add additional Defender for Identity sensors as RADIUS Servers. In the Add RADIUS Server window, type the Server name of the closest Defender for Identity sensor (which has network connectivity). In the Security tab, under Accounting provider, select RADIUS Accounting and select Configure. Right-click the server name and select Properties. Open the Routing and Remote Access console. Perform the following steps on your RRAS server. Configure RADIUS Accounting on the VPN system If you're using a third-party VPN solution, consult their documentation for instructions on how to enable RADIUS Accounting. The example below uses Microsoft Routing and Remote Access Server (RRAS) to describe the VPN configuration process. VPN integration is not supported in environments adhering to Federal Information Processing Standards (FIPS).By enabling Radius Accounting, the Defender for Identity sensor will enable a pre-provisioned Windows firewall policy called Microsoft Defender for Identity Sensor to allow incoming RADIUS Accounting on port UDP 1813.

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