PRTG Manual: RADIUS v2 Sensor

Performance impact

This sensor has a high performance impact. We recommend that you use no more than 200 of this sensor on each probe.

.NET 4.7.2 or later

This sensor requires .NET 4.7.2 or later from Microsoft on the probe system. In a cluster, install it on every cluster node.

If the framework is missing, you cannot create this sensor.

For more information, see the Knowledge Base: Which .NET version does PRTG require?

Plain text authentication

This sensor only supports plain text authentication (Password Authentication Protocol (PAP)).

IPv4

This sensor only supports IPv4.

Lookups

This sensor uses lookups to determine the status values of one or more channels.

Timeout (Sec.)

Enter a timeout in seconds for the request. Enter an integer. The maximum timeout value is 900 seconds (15 minutes).

If the reply takes longer than this value, the sensor cancels the request and shows a corresponding error message.

User Name

Enter the user name for the authentication against the RADIUS server. Enter a string.

Password

Enter the password for the authentication between the client (the probe system) and the RADIUS server. Enter a string.

Shared Secret

Enter the shared secret for the authentication between the authenticator (the probe system) and the RADIUS server. Enter a string.

Port

Enter the number of the port for the connection to the RADIUS server. The default value is 1812. Enter an integer.

NAS Identification

Define how to identify the network access server (NAS):

• Use NAS IP address (default): Enter the NAS IP Address for identification below.
• Use NAS identifier: Enter the NAS Identifier below.

NAS IP Address

This setting is only visible if you select Use NAS IP address (default) above.

Enter a valid IP address for the NAS that originates the access request.

NAS Identifier

This setting is only visible if you select Use NAS identifier above.

Enter an identifier for the NAS that originates the access request.

Result Handling

Define what PRTG does with the sensor result:

• Discard result (default): Do not store the sensor result.
• Store result: Store the last sensor result in the \Logs\sensors subfolder of the PRTG data directory on the probe system. The file names are Result of Sensor [ID].txt and Result of Sensor [ID].Data.txt. This setting is for debugging purposes. PRTG overwrites these files with each scanning interval.

This option is not available when the sensor runs on the hosted probe of a PRTG Hosted Monitor instance.

In a cluster, PRTG stores the result in the PRTG data directory of the master node.

Primary Channel

Select a channel from the list to define it as the primary channel. In the device tree, PRTG displays the last value of the primary channel below the sensor's name. The available options depend on what channels are available for this sensor.

You can set a different primary channel later by clicking below a channel gauge on the sensor's Overview tab.

Graph Type

Define how this sensor shows different channels:

• Show channels independently (default): Show a graph for each channel.
• Stack channels on top of each other: Stack channels on top of each other to create a multi-channel graph. This generates a graph that visualizes the different components of your total traffic.
  You cannot use this option in combination with manual Vertical Axis Scaling (available in the channel settings).

Stack Unit

This setting is only visible if you select Stack channels on top of each other above.

Select a unit from the list. PRTG stacks all channels with this unit on top of each other. By default, you cannot exclude single channels from stacking if they use the selected unit. However, there is an advanced procedure to do so.

Downtime

In the channel table on the Overview tab, this channel never shows any values. PRTG uses this channel in graphs and reports to show the amount of time in which the sensor was in the Down status

RADIUS Code

The RADIUS code

• Up status: Accept-Accept
• Warning status: Access-Challenge
• Down status: Access-Reject

This channel is the primary channel by default.

Response Time

The response time