Inside a computer, each address mask is kept as a 32-bit value. Whenever we enter a prefix and an address mask they make use of a modified type of dotted decimal addressing called CIDR addressing, which is called CIDR Notation.
For example, how CIDR adds flexibility, suppose an individual course B prefix (e.g. 128.211.0.0) i.e. 216 host addresses 16-little bit CIDR mask denoted as:
128.211.0.0/16
That is, by building CIDR mask corresponds precisely to the old Classful interpretation. It shall be fine if 216 hosts are attached. If it can have two customers with just twelve computers each, the ISP may use CIDR to partition the address into three pieces.
• Two of these each big plenty of for just one of two customers.
• Remainder designed for future customers.
For instance, one customer can be assigned 128.211.0.16/28 and the other customer could be assigned 128.211.0.32/28. Both clients possess same mask size, the prefix differs we.e. each customer includes a unique prefix.
The example below in the figure shows the CIDR host addresses:
The following table is showing a summary of dedicated IP Addresses.
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