Inventory of Azure virtual networks

You might want a comprehensive list of virtual networks in your environment when doing the following:

• Managing Azure cloud infrastructure

Prerequisites 

In order to execute this procedure in your environment, you may need to first on-board the data, services, or apps shown in the following table.

Example

The purpose of this example is to show how this procedure works in a general environment. In your environment, you can optimize the search by specifying an index, a time range, or a different data source. 

As an administrator, you want to have a high-level view of virtual networks in your Azure infrastructure. 

1. Run the following search: 

sourcetype="mscs:resource:virtualNetwork"
|stats count BY location, properties.subnets{}.name, properties.addressSpace.addressPrefixes{}, name 
|fields - count 
|rename location AS Location name AS "Source Network", properties.subnets{}.name AS Name properties.addressSpace.addressPrefixes{} AS Subnet

Search Explanation

The table provides an explanation of what each part of this search achieves. You can adjust this query based on the specifics of your environment.

Result

Sample results for this search are shown in the table below. The results show all the virtual networks provisioned in the environment. This data could be the foundation for asset management data collection. Inventory and asset management tracking is considered a best practice in the ITIL framework. A search like this can be used to gather information on provisioned assets, in this case virtual networks. Asset management is critical in the cloud because it affects operation expenses, as well as security, and informs lifecycle management.