# Network Topology

## Internet Connection
- Public IP: 67.206.163.122
- Gateway/Router: UniFi Dream Machine (UDM) at 192.168.0.254

## Network Segments
| Segment | Subnet | Purpose |
|---------|--------|---------|
| Main LAN | 192.168.0.0/24 | Servers, workstations, DOS test stations |
| Secondary | 192.168.1.x | Some workstations |
| VPN/Remote | 192.168.6.x | VPN / remote access |

## Key Infrastructure IPs
| Device | IP | OS / Type | Role |
|--------|-----|-----------|------|
| AD1 | 192.168.0.27 | Win Server 2016 | Primary DC, DNS, WINS/NPS |
| AD2 | 192.168.0.6 | Win Server 2016 | Secondary DC, DNS, DFS, TestDataDB |
| FILES-D1 | 192.168.0.189 | Win Server 2016 | File Server |
| SAGE-SQL | 192.168.0.153 | Win Server 2016 | Sage ERP Database |
| 3CX | 192.168.0.125 | Win Server 2016 | Phone System |
| D2TESTNAS | 192.168.0.9 | Debian 13 / Samba | SMB1 proxy for DOS machines |
| ESXi-122 | 192.168.0.122 | VMware ESXi | Hypervisor |
| ESXi-124 | 192.168.0.124 | VMware ESXi | Hypervisor |
| DF-HYPERV-B | 192.168.0.123 | Win Server 2025 | Hyper-V Host |
| UDM | 192.168.0.254 | UniFi Dream Machine | Gateway/Router |
| ENG-DEV-SERVER | 192.168.0.126 | Win 11 Pro | Engineering Dev Server |

## WINS / NPS
- Server: AD1 (192.168.0.27)
- NPS Ports: 1812/1813

## Notes
- Flat network — no VLANs, everything on 192.168.0.0/24
- DOS test stations (64) use SMB1 via D2TESTNAS Samba proxy
- No dedicated firewall appliance — UDM handles routing and firewall