Distributed firewall comes with predefined categories for firewall rules. Rules are evaluated top down, and left to right.
|Ethernet||Used for Layer 2 based rules|
|Emergency||Used for quarantine and allow rules|
|Infrastructure||Define access to shared services. Global rules - AD, DNS, NTP, DHCP, Backup, Managment Servers|
|Environment||Rules between zones - production vs development, inter business unit rules|
|Application||Rules between applications, application tiers, or the rules between micro services|