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Kandrik
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Feb 28, 2026

Priority between CIDR and FQDN rules in Microsoft Entra Private Access (GSA)

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Question about prioritization between CIDR and FQDN rules in Microsoft Entra Private Access (GSA) Question: Hello everyone, I have a question about how rules are prioritized in Microsoft Entra Private Access (Global Secure Access). In my environment, I configured the following: I created an Enterprise Application using a broad CIDR range (10.10.0.0/16) to represent the entire data center. Within the same environment, I created other Enterprise Applications using specific FQDNs ( app01.company.local, app02.company.local) with specific ports. All rules are in the same Forwarding Profile. I noticed that in the GSA client rules tab there is a “Priority” field, and apparently the rules are evaluated from top to bottom. My question is: When there is an overlap between a broad CIDR rule and a more specific FQDN-based rule, which one takes precedence? Is there some internal technical criterion (DNS resolution first, longest prefix match,), or is the evaluation purely based on the order displayed? Is there a risk that the CIDR rule will capture traffic before the FQDN rule and impact granular access control? I want to make sure my architecture is correct before expanding its use to production. Could someone clarify the actual technical behavior of this prioritization?

 

 

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