Merge pull request #99887 from winthrop28/patch-75

updating FAQ

Author: PRMerger15

articles/application-gateway/application-gateway-faq.md

@@ -195,6 +195,9 @@ No.
 
 Yes. For details see, [Migrate Azure Application Gateway and Web Application Firewall from v1 to v2](migrate-v1-v2.md).
 
+### Does Application Gateway support IPv6?
+
+Application Gateway v2 does not currently support IPv6. It can operate in a dual stack VNet using only IPv4, but the gateway subnet must be IPv4-only. Application Gateway v1 does not support dual stack VNets. 
 
 ## Configuration - SSL