Merge pull request #1973 from Blackmist/network-note

adding prereq about isolated network requirements

Author: v-shils

articles/machine-learning/includes/prereq-workspace.md

@@ -5,9 +5,12 @@ author: sdgilley
 ms.service: azure-machine-learning
 services: machine-learning
 ms.topic: include
-ms.date: 03/22/2023
+ms.date: 12/12/2024
 ms.author: sgilley
 ms.custom: include file
 ---
 
 To use Azure Machine Learning, you need a workspace. If you don't have one, complete [Create resources you need to get started](../quickstart-create-resources.md) to create a workspace and learn more about using it.
+
+> [!IMPORTANT]
+> If your Azure Machine Learning workspace is configured with a managed virtual network, you may need to add outbound rules to allow access to the public Python package repositories. For more information, see [Scenario: Access public machine learning packages](/azure/machine-learning/how-to-managed-network#scenario-access-public-machine-learning-packages).