added missing ip block

Author: ccompy

articles/app-service/environment/firewall-integration.md

@@ -4,7 +4,7 @@ description: Learn how to integrate with Azure Firewall to secure outbound traff
 author: ccompy
 ms.assetid: 955a4d84-94ca-418d-aa79-b57a5eb8cb85
 ms.topic: article
-ms.date: 01/14/2020
+ms.date: 01/24/2020
 ms.author: ccompy
 ms.custom: seodec18
 
@@ -270,6 +270,21 @@ Linux is not available in US Gov regions and is thus not listed as an optional c
 | Azure Storage |
 | Azure Event Hub |
 
+#### IP Address dependencies
+
+| Endpoint | Details |
+|----------| ----- |
+| \*:123 | NTP clock check. Traffic is checked at multiple endpoints on port 123 |
+| \*:12000 | This port is used for some system monitoring. If blocked, then some issues will be harder to triage but your ASE will continue to operate |
+| 40.77.24.27:80 | Needed to monitor and alert on ASE problems |
+| 40.77.24.27:443 | Needed to monitor and alert on ASE problems |
+| 13.90.249.229:80 | Needed to monitor and alert on ASE problems |
+| 13.90.249.229:443 | Needed to monitor and alert on ASE problems |
+| 104.45.230.69:80 | Needed to monitor and alert on ASE problems |
+| 104.45.230.69:443 | Needed to monitor and alert on ASE problems |
+| 13.82.184.151:80 | Needed to monitor and alert on ASE problems |
+| 13.82.184.151:443 | Needed to monitor and alert on ASE problems |
+
 #### Dependencies ####
 
 | Endpoint |