Distributed firewall comes with predefined categories for firewall rules. Rules are evaluated top down, and left to right.

Table 1. Distributed Firewall Rule Categories
Category Description
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