A Glance At The Different Ip Address Classes

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Internet Protocol (also called IP) addresses are important to identify the physical address or location of a particular computer system. They are commonly categorized into various classes in order for users and administrators to identify a network size. In addition, classes contain bits, which are essential to determine the host ID as well as the network ID. Aside from this use, they are usually used to know the overall subnet hosts numbers in a particular network. Know more about IP address classes by looking at the different characteristics of classes A to E.

The Characteristics of IP Classes, A, B and C

Computer networks, which have big number of hosts, are categorized into class A. Its initial octet is used for identifying its network ID. This octet's first bit is commonly set to zero while the succeeding seven bits are set to 1. On the other hand, the class B is important to categorize networks, which total hosts are medium to large sizes. It uses the first and second octets in order to provide a network ID for 16,384 networks. Furthermore, the class C is assigned for small computer networks that uses the first, second and third octets.

The Characteristics of IP Classes D and E

These two classes are not assigned for computer network hosts. The fourth category of IP addresses is important to multicasting computer networks while the last category is only available for future use. The leftmost bits of networks included in class D are 1, 1, 1 and 0. Its start address is 224.0.0 while the last address is 239.255.255.255. On the other hand, the leftmost bits of category E are 1, 1, 1 and 1. The addresses of networks in this category start with 240.0.0.0 and end with 255.255.255.255.

Additional Information and Other Important Details About the Use of IP Classes When Changing Addresses

When changing IP addresses, one should have ideas about the different methods to be used as well as determine which class does one's network belongs to. It is also important to know that altering IP addresses should be the last resort to ensure that a network is secured. To avoid having problems, it is necessary to have a background on the various uses of firewalls and IP blocking before a network administrator decides to change a network's IP address. Moreover, it is more beneficial to learn the functions and characteristics of using IP address translation systems or network address translation systems.


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