-When a storage account is part of a network security perimeter, the relevant [profile's](../../private-link/network-security-perimeter-concepts.md#components-of-a-network-security-perimeter) access rules override the account’s own firewall settings, becoming the top-level network gatekeeper. Access allowed or denied by the perimeter takes precedence, and the account’s "Allowed networks" settings are bypassed when the storage account is associated in enforced mode. Removing the storage account from a network security perimeter reverts control back to its regular firewall. Network security perimeters don't affect private endpoint traffic. Connections via private link always succeed. For internal Azure services ("trusted services"), only services explicitly [onboarded to Network Security Perimeter](../../private-link/network-security-perimeter-concepts.md#onboarded-private-link-resources) can be allowed through perimeter access rules. Otherwise, their traffic is blocked by default, even if trusted on the storage account firewall rules. For services not yet onboarded, alternatives include subscription-level rules for inbound and Fully Qualified Domain Names (FQDN) for outbound access or via private links.
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