192.168.1.15 or 10.0.0.45) is assigned exclusively inside your local Wi-Fi or Ethernet network by your router under RFC 1918. Your Default Gateway (e.g. 192.168.1.1, 192.168.0.1, or 10.0.0.1) is the local router management interface that bridges your home devices to the internet. If your WAN IP falls within 100.64.0.0/10, your ISP has deployed Carrier-Grade NAT (CGNAT / RFC 6598), sharing a single public IP among hundreds of customers.
Validates against IETF RFC 1918, RFC 6598 (CGNAT), and RFC 4291.
Detects whether browser leaks raw private LAN IPs behind VPN/proxy.
Universal IP Scope & RFC Classifier
Enter any IP address to check if it is private (RFC 1918), ISP CGNAT (RFC 6598), APIPA (RFC 3927), or globally routable public internet:
Understanding the Three Fundamental IP Values
| Value Type | Network Boundary | Typical Notation | How to Discover |
|---|---|---|---|
| Public IP | Public WAN (Internet) | Globally unique (e.g. 198.51.100.42 or 2001:db8::1) | Observed via WebRTC STUN or external check |
| Local / Private IP | Local LAN Subnet | RFC 1918 (192.168.1.15, 10.0.0.45) | Device OS network settings or ipconfig |
| Default Gateway | Local Router Layer 3 Interface | Private host address (192.168.1.1, 192.168.0.1) | ipconfig / ip route / Router Portal Radar |
How to Find Your Device Local IP Address by Operating System
- Windows 11 / 10: Press Win + R, type
cmd, press Enter, and executeipconfig. Look for IPv4 Address under your active Wi-Fi or Ethernet adapter. - macOS (Apple Silicon / Intel): Open System Settings → Wi-Fi (or Network) → Click Details... next to your active connection → Look under IP Address. Alternatively, run
ipconfig getifaddr en0in Terminal. - Linux (Ubuntu, Debian, Fedora, Arch): Open terminal and execute
ip -br addrorip route show default. - Android (Samsung, Google Pixel, Xiaomi): Go to Settings → Network & internet → Internet → Tap the gear icon next to your connected Wi-Fi → Scroll down to IP address.
- Apple iPhone / iPad (iOS): Open Settings → Wi-Fi → Tap the blue (i) info icon next to the connected SSID → View IP Address and Router.
Is 192.168.1.1 My IP Address?
No. 192.168.1.1 is almost certainly your router's management interface (Default Gateway), not your personal computer or smartphone's IP address. Your device has its own private IP address within the same subnet, such as 192.168.1.50. To log into your router settings, open our router login hub or use our 1-click gateway radar.
Frequently asked questions
Does a VPN change my public IP address?
Yes. When you connect to a virtual private network (VPN), all external internet traffic is encapsulated and routed through the VPN server. External websites see the VPN exit node public IP rather than your ISP-assigned IP.
Why does my public IP change after restarting my router?
Most residential Internet Service Providers (ISPs) allocate dynamic IPv4 addresses via DHCP or PPPoE lease pools. Power cycling your modem/router prompts a DHCP lease renegotiation, frequently returning a different public IP from the ISP pool.
What is the difference between IPv4 and IPv6?
IPv4 uses 32-bit addresses formatted as four decimal octets (e.g. 192.0.2.1), providing ~4.3 billion total addresses. IPv6 uses 128-bit hexadecimal notation (e.g. 2001:db8::1), providing 340 undecillion addresses, eliminating the need for NAT and private address conservation.
Can someone hack my router just by knowing my public IP?
Knowing your public IP allows external port probes, but modern routers automatically drop all unrequested incoming connection attempts unless you have manually configured Port Forwarding, enabled DMZ, or turned on WAN Remote Management. Router Portal always recommends keeping WAN remote management disabled.
Our networking steps are lab-tested against standard RFC 1918 private networking protocols across Windows 11 (24H2), macOS Sequoia (15.1), iOS 18, and Android 15. We verify physical device labels and firmware release documentation before publishing gateway instructions. Router Portal is strictly read-only and never requests, intercepts, or logs router passwords.