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Troubleshooting

Public IP vs Private IP vs Gateway — What's the Difference?

Public IPs, private IPs, and gateway IPs all serve different roles. Understanding the difference helps you troubleshoot network and router issues faster.

Updated 2026

  1. 1

    Public IP address

    Assigned by your ISP. This is the address websites and online services see. Every household shares one public IP across all its devices.

  2. 2

    Private (local) IP address

    Assigned by your router to each device on your home network — for example 192.168.1.5 for your laptop, 192.168.1.6 for your phone.

  3. 3

    Gateway IP address

    Your router's own local address — for example 192.168.1.1. This is the IP you type into a browser to open the router admin panel.

  4. 4

    How they work together

    When you visit a website, your device sends traffic to the gateway (router), which forwards it using your public IP. Replies come back the same way in reverse.

Frequently Asked Questions

Can I have two public IPs?
Residential connections almost always have one public IP shared by all devices via NAT. Business connections can have multiple.
Why are private IPs always 192.168.x.x or 10.x.x.x?
These ranges are reserved by Internet standards (RFC 1918) for private networks and are never routed on the public internet.