Merge pull request #189015 from vhorne/main

update IDPS known issue

Author: PRMerger18

articles/firewall/overview.md

@@ -7,7 +7,7 @@ ms.service: firewall
 services: firewall
 ms.topic: overview
 ms.custom: mvc, contperf-fy21q1
-ms.date: 01/20/2022
+ms.date: 02/17/2022
 
 # Customer intent: As an administrator, I want to evaluate Azure Firewall so I can determine if I want to use it.
 ---
@@ -118,7 +118,8 @@ Untrusted customer signed certificates|Customer signed certificates are not trus
 |Certificate Propagation|After a CA certificate is applied on the firewall, it may take between 5-10 minutes for the certificate to take effect.|A fix is being investigated.|
 |TLS 1.3 support|TLS 1.3 is partially supported. The TLS tunnel from client to the firewall is based on TLS 1.2, and from the firewall to the external Web server is based on TLS 1.3.|Updates are being investigated.|
 |KeyVault Private Endpoint|KeyVault supports Private Endpoint access to limit its network exposure. Trusted Azure Services can bypass this limitation if an exception is configured as described in the [KeyVault documentation](../key-vault/general/overview-vnet-service-endpoints.md#trusted-services). Azure Firewall is not currently listed as a trusted service and can't access the Key Vault.|A fix is being investigated.|
-|IDPS Bypass list|IDPS Bypass list doesn't support IP Groups.|A fix is being investigated.|
+|IDPS Bypass list|If you enable IDPS (either ‘Alert’ or ‘Alert and Deny’ mode) and actively delete one or more existing rules in IDPS Bypass list, you may be subject to packet loss which is correlated to the deleted rules source/destination IP addresses. |A fix is being investigated.<br><br>You may respond to this issue by taking one of the following actions:<br><br>- Do a start/stop procedure as explained [here](firewall-faq.yml#how-can-i-stop-and-start-azure-firewall).<br>- Open a support ticket and we will re-image your effected firewall virtual machines.
+
 
 
 ## Next steps