![]() There are four classes of IP addresses, although only three are of any significance. ![]() ![]() Every computer on a network will have the same network number, but will have its own host number.ĭepending on what class of IP address a network falls into, the network section itself could be made up of one, two or three of the four fields. An IP address could be 66.171.248.172, for example.Īlthough you can’t see it, the IP address has imbedded in it both a network part and a host part. (Go to the WhatIsMyIPAddress home page to see yours right now.) You can read each field as its own number, which can range from 0 to 255. Your IP address and everyone else’s is made up of four fields of numbers separated by three dots. By creating what’s called a “hosts file,” which lists computers and printers on the network by name, you and your network administrators will always know which computer or printer you want to interact with. Imagine keeping tabs on every IP address that can change at any time for hundreds of hosts. Why go by name? Because in a lot of instances, the IP address might change for any one host. (Yes, printers and other devices on the network have their own IP addresses.) In other words, when you select a file to print on a different printer on the network, you choose it by its name, such as “Canon Printer.” However, the network automatically matches the correct IP address for that printer. Even if you always identify your computer by its host name, you will also have an IP address linked to that name on the network. Every device on a TCP/IP network has to have its own IP address. ![]() Your IP address identifies one computer, or one “host,” as they’re referred to on networks. Your IPv4 address is a series of numbers and dots, the string of numbers is separated by the dots into four sections, and not all IP addresses have the same number of digits. ![]()
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January 2023
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