Subnets and SubNOTs
In a previous network topology, we used a single subnet (10.1.0.0/16) but used the third octet as a logical divisor, for example, “10.1.3.0/24” were computers, but weren't actually a subnet and were configured as a /16. When the network was upgraded to managed switches with VLAN support, the muscle memory of these logical partitions was to be preserved. To support this, actual subnets were required to be reflected in the 2nd octet, and the third octet became a logical separator we refer to as a “subNOT.”
Below are the actual subnets in the house:
| 2nd Octet | Description |
|---|---|
| 1 | Default |
| 2 | Home Servers |
| 3 | Minecraft Servers |
| 4 | User Devices |
| 5 | Vendor and Appliances |
| 6 | Wireguard VPN |
| 7 | Storage Area Network |
| 10 | Proxmox Cluster Communication |
| 99 | Network |
Below are the logical subNOTs in the house:
| 3rd Octet | Description |
|---|---|
| 1 | Networking |
| 2 | Servers |
| 3 | Computers |
| 4 | Printers |
| 5 | Phones and Tablets |
| 6 | Kids |
| 7 | Games |
| 8 | Multimedia |
| 9 | Internet of Things |
| 10 | Misc |
| 100 | DHCP/Guests |
That means the resulting subnets with actual clients are the following:
| /24 Subnet | Description |
|---|---|
| 10.2.1 | Server Networking Devices |
| 10.2.2 | Surfrock66 Servers |
| 10.3.1 | teh3l3m3nts Minecraft Networking Devices |
| 10.3.2 | teh3l3m3nts Minecraft Servers |
| 10.4.1 | User Networking Devices |
| 10.4.3 | User Laptops and Computers |
| 10.4.5 | User Phones and Tablets |
| 10.4.6 | Kid Phones and Tablets |
| 10.4.8 | Multimedia Computers |
| 10.4.10 | Misc User Devices |
| 10.4.100 | User DHCP Clients |
| 10.5.1 | Vendor and Appliance Network Devices |
| 10.5.4 | Printers |
| 10.5.7 | Game Consoles |
| 10.5.8 | Multimedia Appliances |
| 10.5.9 | IoT Devices |
| 10.5.10 | Misc Devices |
| 10.5.100 | Guests |
| 10.7.2 | Storage Area Network |
| 10.10.2 | Proxmox Cluster Communication |
| 10.99.1 | Networking Devices |