Merge pull request #3394 from xizhuang/patch-4

Update known-issues.md

Author: Court72

azure-stack/operator/known-issues.md

@@ -3,7 +3,7 @@ title: Azure Stack Hub known issues
 description: Learn about known issues in Azure Stack Hub releases.
 author: sethmanheim
 ms.topic: article
-ms.date: 10/31/2024
+ms.date: 11/11/2024
 ms.author: sethm
 ms.reviewer: rtiberiu
 ms.lastreviewed: 11/30/2023
@@ -41,7 +41,14 @@ To access known issues for a different version, use the version selector dropdow
 - Remediation: If you have more than 8 node stamps, it's advised that you delay your updates if possible, until a hotfix/inline fix is released.
 - Occurrence: Common.
 
-<!-- ## Networking -->
+## Networking
+
+### Outbound ICMP to internet is blocked by default for tenant VM
+
+- Applicable: This issue applies to release 2311 and later.
+- Cause: The issue is caused by a change in the default ICMP behavior introduced with Windows Server 2022 that diverges from previous behavior, as well as Azure behavior.
+- Remediation: You can add an inbound NSG rule to allow outbound ICMP packets to the internet. Microsoft is aware of the issue. 
+- Occurrence: Common.
 
 ## Compute
 
@@ -151,6 +158,15 @@ To access known issues for a different version, use the version selector dropdow
 - Remediation: You can ignore the alert in the Test-AzureStack report. Microsoft is aware of the issue and is working on a fix.
 - Occurrence: Common.
 
+## Networking
+
+### Outbound ICMP to internet is blocked by default for tenant VM
+
+- Applicable: This issue applies to release 2311 and later.
+- Cause: The issue is caused by a change in the default ICMP behavior introduced with Windows Server 2022 that diverges from previous behavior, as well as Azure behavior.
+- Remediation: You can add an inbound NSG rule to allow outbound ICMP packets to the internet. Microsoft is aware of the issue. 
+- Occurrence: Common.
+
 <!-- ## Alerts -->
 
 ## Portal