This document describes how network administrators can deploy network firewall policies to control traffic across Virtual Private Cloud (VPC) networks. The example helps you optimize rules for security controls.
Before you use this example, review the concepts of global network firewall policies and regional network firewall policies.
The following diagram describes the scope of a global network firewall policy and a regional network firewall policy in a VPC network. A global network firewall policy applies to all subnetworks in all regions. A regional network firewall policy applies to only the subnetworks in the target region.