Enterprise network topology with Fortigate 60F firewall, Cisco L3/L2 switching, and six segmented VLANs serving 45 users across leadership, administration, secure printing, camera, guest, and management zones. Traffic flows from ISP WAN through perimeter security with FortiGuard WAF/IPS/IDS, then through core L3 routing to access layer PoE switches and UniFi WiFi 6 APs. Windows Server 2025 provides AD/DNS/DHCP, file services via DFS, print isolation on VLAN30, and NVR camera recording on VLAN40, while Synology NAS handles backup and FortiAnalyzer logs security events. This architecture demonstrates defense-in-depth with VLAN isolation, role-based access control, and centralized management—critical for protecting sensitive operations in government or enterprise settings. Fork and customize this diagram on Diagrams.so to adapt IP ranges, add redundancy, or integrate additional security appliances. Consider adding a secondary WAN link and HA firewall pair for production deployments requiring 99.9% uptime.