Fun fact: Your *private ip* (e.g., 192.168.x.x) is like an internal extension number at a company. The *public ip* is the main phone line.
When you call out (request a website), the router logs which extension (private ip) made the call so it can route the response back. NAT’s the switchboard operator making it all work.
Why not all public? Imagine every employee needing their own phone line—$$$ and impractical.
For nerdy details, *Cisco’s NAT docs* are gold (but dense).
When you call out (request a website), the router logs which extension (private ip) made the call so it can route the response back. NAT’s the switchboard operator making it all work.
Why not all public? Imagine every employee needing their own phone line—$$$ and impractical.
For nerdy details, *Cisco’s NAT docs* are gold (but dense).