Glossary infra Term Page
Private IP
An internal-only IP address that the internet cannot route to directly
Core Idea
A private IP is an address used only inside local networks and not directly reachable from the internet. Devices use it to talk within the LAN, and traffic usually needs NAT before it can exit to the outside world.
Why It Matters Here
Mathbong uses private IPs across OPNsense LAN design, Proxmox internal bridges, and DHCP setup. They are the starting point for almost every explanation of safe internal network boundaries.