IP (Internet Protocol) addresses are the backbone of computer networking, both on the Internet and in your home network. They are the 'phone numbers' that allow computers to locate and communicate with each other across networks.
An IP Address is made up of 4 sets of decimal numbers, 0-255, separated by periods (for example, 192.168.44.251) which form the address of a computer on the Internet or within a local network, and allow it to be referenced by other computers.
In order to view a website, or to allow others to view your website, your computer must have a valid Internet IP address in order to exchange data with a web server or the potential readers of your website.
Your Internet Service Provider allocates your home PC a valid Internet IP address when it connects to the Internet. Depending on the provider, this IP address may stay the same for long periods (static IP) or may change frequently (dynamic IP).
A computer can have multiple IP addresses assigned to it. If your computer connects both to the Internet via your provider's cable/DSL modem and to a home network, you will have a separate IP address for each connection.
To view your IP address information, go to 'start\run' and type 'cmd' to bring up the command prompt, then type 'ipconfig'. This will list all the IP addresses your computer is currently using. If you use a home router or other Internet sharing device, check its status page to find out your Internet IP address. If you are not sure how to do this, consult the manual for the device
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