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 CLASS B IP Definition
We define CLASS B IP |
CLASS B IP - A group of IP addresses where the first two numbers remain the same and the last two can vary. It could be represented by w.x.y.z, where the y and z can be any number from 0-255, and the w and x represent the first static part of the IP address (e.g., 10.251.y.z). Thus, the number of possible combinations within the Class B address are 256*256 = 65,536. Of course, some of the addresses, like those ending in .0 and .255, are not used, so the actual number of usable addresses in a Class B is somewhat less than that. The subnet mask of a class B IP address is 255.255.0.0. Thus, only the last two digits of the IP address are used to determine where traffic gets routed within the Class B. There are about 65,000 class B groups in existence. |
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