The ExtraHop Add-On for Splunk enables you to export ExtraHop wire data metrics as Splunk events. You can export metrics about any activity group, device group, or application on an ExtraHop Discover or Command Appliance. After the Splunk platform indexes the events, you can analyze the data through the dashboards in the ExtraHop App for Splunk or by creating your own visualizations. In addition, the ExtraHop Add-On for Splunk provides a data model for ExtraHop detections sent by the ExtraHop Detection SIEM Connector bundle.
The ExtraHop Add-On for Splunk collects 30-second metrics through the ExtraHop REST API. Dataset metrics are collected for 5th, 25th, 50th, 75th, and 95th percentiles. All events collected by the ExtraHop Add-On for Splunk are assigned the extrahop* source type. All detections collected by the ExtraHop Add-On for Splunk are assigned the extrahop-detection** source type.
Splunk Enterprise 7.x is supported by version 1.x of the ExtraHop Add-On for Splunk. This version of the add-on requires Python 2.
Splunk Enterprise 8.x is supported by version 2.x of the ExtraHop Add-On for Splunk. This version of the add-on requires Python 3.
ExtraHop firmware version 7.1.2 or later
You must have an API key with at least “metrics”:”full” privileges. For more information about ExtraHop REST API keys, see the ExtraHop REST API Guide.
The ExtraHop Add-On for Splunk can be installed on a Splunk search head or heavy forwarder.
For information about installing an add on, see the Splunk Add-Ons documentation.
If you want to connect the add-on to your ExtraHop appliance over a proxy, you must configure proxy settings.
After you install the ExtraHop Add-On for Splunk, we recommend that you install the ExtraHop App for Splunk to help you configure the ExtraHop Add-On. The ExtraHop App creates default inputs to collect metrics about HTTP, DNS, and storage activity and builds dashboards to display that information.
For more information about the ExtraHop App for Splunk, see https://splunkbase.splunk.com/app/3939/.
You must create data inputs that collect information from an ExtraHop appliance to retrieve wire data metrics.
The ExtraHop Add-On for Splunk contains a sourcetype for ExtraHop detections. In order to receive detections in Splunk, you must configure a data input for ExtraHop detections and configure the ExtraHop Detection SIEM Connector on your ExtraHop Command or Discover appliance.
Detection data can be sent from a Command or Discover appliance to Splunk through the syslog protocol. Complete the procedure in the Splunk documentation to get data from a TCP or UDP port. You must set the source type value to extrahop-detection.
Follow the instructions on the ExtraHop Detection SIEM Connector bundle page to configure your ExtraHop appliance to send detections data to Splunk.
If you edit or clone a data input, the API key field is automatically set to a series of asterisks. You must re-enter the API key for the ExtraHop appliance before saving the input.
Why isn’t my data appearing in Splunk?
It might take some time for the your data to be indexed initially by Splunk. Errors for this add-on are logged to the splunkd.log and ta_extrahop_addon_extrahop.log log files.
- Code migrated to Python 3. *NOTE* If you need compatibility with Splunk 7.x, please use version 1.2.3 of the Add-On.
- Removed deprecated oidsearch command.
- Fixed a bug in extrahop-detections transform
- Added support for custom "cyclesize", allowing 5min or 1hr metric rollups
- Added support for network metrics
- Added support for summary metrics for activity groups and device groups; metrics are summed for the group for each metric cycle, instead of per-device for group members
- Added settings for custom Splunk Management API hostname and port
*NOTE* If you need compatibility with Splunk 8.x, please use version 2.0.0 of the Add-On.
Fixed a bug in extrahop-detections transform.
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