Implementing GCP VPC Firewall Rules When to Use - When deploying new GCP workloads that require network-level access controls - When auditing existing firewall configurations for overly permissive rules - When implementing zero trust network segmentation within GCP VPC networks - When responding to Security Command Center findings about open firewall rules - When building hierarchical firewall policies across a GCP organization Do not use for application-layer filtering (use Cloud Armor WAF), for DNS-based filtering (use Cloud DNS response policies), or for VPN/interconnect traffic filtering…