Thursday, 24 November 2016

Internal IP and External IP

Internal or local IP and External or Public IP both serve the same purpose.
1. A local IP address is used inside a private network to locate the computers and devices connected to it.
2. A public IP address is used across the entire internet to locate computer systems and devices.


Internal IP
  • If our computer is connected to a router with default settings, that router will automatically assign a local IP address to our computer.
  • Our local IP address is hidden from the outside world and used only inside our private network.
  • The local IP address can change depending on what other devices are connected to and in what order they were connected to network.
  • Most network routers assign IP address starting at 192.168.1.2 and increment the last digit with each new device that connects.
  • If you want to find your computer local IP then type windows+r then type cmd then press enter command prompt will be opened type ipconfig then press enter

External IP
  • Our Internet Service Provider(ISP) assigns you an external IP address when you connect to the internet.
  • When a web browser requests a webpage, it sends the external IP address along with it.
  • Your ISP uses this to know which of its customers are requesting which webpage.
  • If you want to find your public IP then go to any search engine and type my external IP address.

Notes