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IP Address

Internet Protocol Address

A unique identifier for a computer or device on a TCP/IP network.

Networks using the TCP/IP protocol route messages based on the IP address of the destination. An IP address is written as four sets of numbers separated by full stops. Each number can be between 0 and 255. A typical address found in most home equipment as a default is
The Internet requires the use of a unique registered IP addresses for any device publicly available on the internet.

Internet registers have been set up to assign these IP addresses and they have been split up as Class A, B and C addresses with only Class C address being available now. (Class D and E also exist but are set aside for special use)

Because the range of IP addresses available is quickly disappearing a new IP standard known as IPv6 is being introduced, this makes available billions more addresses to future proof the addresses system.

If you have a home network set up you can use any IP addressing scheme you want so long as your public facing IP address is a unique registered address. This address is typically assigned to your cable or ADSL broadband modem dynamically by your ISP.


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