What is the difference between a public and private IP address?

Private addresses are used inside the home; the router’s public address represents the connection on the internet. Under CGNAT even the router WAN may be private/shared.

What to check

LAN IP; WAN IP; public lookup; CGNAT.

When to get help from a person

Network team.

Show the technical detail
On a managed Wi-Fi plan

Explain without publishing addresses; validate public/static need.

On another provider's router

Ask ISP about address policy.

What to be careful of

Treat IP addresses as sensitive account/network data.

Where this comes from: Official · see the original source ↗ · Draft—technical review · checked 17 August 2026

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