Merge pull request #190341 from ckittel/patch-10

Add clarity to help cover the "what about RFC 6598" type questions

Author: PRMerger10

articles/virtual-network/virtual-networks-faq.md

@@ -52,7 +52,7 @@ We recommend that you use the address ranges enumerated in [RFC 1918](https://to
 You can also deploy the Shared Address space reserved in [RFC 6598](https://datatracker.ietf.org/doc/html/rfc6598), which is treated as Private IP Address space in Azure:
 * 100.64.0.0 - 100.127.255.255 (100.64/10 prefix)
 
-Other address spaces may work but may have undesirable side effects.
+Other address spaces, including all other IETF-recognized private, non-routable address spaces, may work but may have undesirable side effects.
 
 In addition, you cannot add the following address ranges:
 * 224.0.0.0/4 (Multicast)