Computer Networks I IP addressing
Computer Networks I IP addressing Computer Networks I IP addressing
Supernetting Super-net mask Computer Networks I 22 ● It requires a net mask to make routing possible. Super-net mask 1111 1111 1111 1111 1111 1 000 0000 0000 Supernetting - 3 bits C-class default mask 1111 1111 1111 1111 1111 1111 0000 0000 Subnetting + 3 bits Sub-net mask 1111 1111 1111 1111 1111 1111 1110 0000
Computer Networks I 23 Classless addressing ● Classfull address is little flexible. ● Classless allows to define blocks of any size (power of 2). ● ● ● ● It is a generalization of subnetting. The same requirements are applied. The first address and the mask defines the block. Supernetting has no sense in classless addressing It implies routing problems, solved by CIDR.
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- Page 9 and 10: Private addresses RFC 1918 Some blo
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<strong>Computer</strong> <strong>Networks</strong> I 23<br />
Classless <strong>addressing</strong><br />
●<br />
Classfull address is little flexible.<br />
● Classless allows to define blocks of any size (power of 2).<br />
●<br />
●<br />
●<br />
●<br />
It is a generalization of subnetting. The same<br />
requirements are applied.<br />
The first address and the mask defines the block.<br />
Supernetting has no sense in classless <strong>addressing</strong><br />
It implies routing problems, solved by CIDR.
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