IP address clarification — different IP addresses for same computer – ipconfig vs. browser

5 pts.
Tags:
IP configuration
ipconfig
Private IP
Public IP
This question is just for my own education (as opposed to trying to accomplish a particular task).  Can someone explain the difference between the IP address which is displayed by sites, such as: http://www.displayip.net/ - as your computer's IP address  and the information that ipconfig displays.  There does not seem to be any overlap. Thanks in advance

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There is a local or <b>private</b> IP address assigned to most computers. This is what you see when you run the ipconfig command. When you visit a website, your communication goes through a router or firewall that has a public IP address. It is this <b>public</b> IP address that you see and will be logged when visiting a website. This feature is called network address translation (NAT) or can also be known as port address translation (PAT).

Check out this Howstuffworks article on: How Network Address Translation Works

More technical information on NAT can be found here.

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  • petkoa
    Or, you are using (knowingly or not) a web-proxy (in case you PC has a real public routable IP address, which you see in ipconfig output, but nevertheless some site displays another IP...) By, Petko A.
    3,120 pointsBadges:
    report

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