What is the Difference Between Public and Private IP Addresses?
The public IP address is what is seen by the world, such as web servers. The private IP address is used within your own network to allow private communication between local devices.
To find your private IP address,
Go to Start / Run and type in ‘cmd’ without the quotes.
Now type in ‘ipconfig’ without the quotes. This will display you IP address on your PC.
To find your Public IP address,
Visit www.IP-Details.Com this site would display your IP address with your basic geographical location.
Simply put, “public” IP addresses can be routed across the Internet, and “private” IP addresses cannot be routed across the Internet. The single dynamic IP address or block of static IP addresses that Qwest provides to you are public addresses. They are unique throughout the Internet, and are accessible from any other user on the Internet. If you are using NAT, the 10.0.0.x addresses that the DSL router assigns to your client PCs are private addresses, and these addresses cannot be routed across the Internet. The Internet community has reserved certain IP address blocks for use in private networks, and the entire 10.0.0.0 network is one of those reserved blocks.
A unique Internet Protocol (IP) address, known as a public IP address, is assigned to every computer that connects to the Internet. The IP addressing scheme makes it possible for computers to “find each other” online and exchange information. Within a private network, computers use addresses excluded by convention from use on the Internet. The difference between a private IP address and a public IP address then, is that private IP addresses are reserved for private networks, and public IP addresses are reserved for the Internet. The Internet Assigned Numbers Authority (IANA), a once-autonomous organization, now works within the purview of the Internet Corporation for Assigned Names and Numbers (ICANN). IANA is responsible for overseeing global allocation of IP numbers, among other related protocols. Within the range of publicly available IP addresses are specific, excluded ranges withheld for private network use. These private IP ranges are as follows: • 10.0.0.0 … 10.255.255.255 • 172
Related Questions
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- What is the Difference Between Public and Private IP Addresses?
