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Web runing out of addreses

Web runing out of addreses. http://online.wsj.com/article/SB10001424052748704254304576116401267588510.html. IPv4. An IPv4 address consists of four bytes (32 bits). These bytes are also known as octets . Ex: 234.5.67.190.086 Each sub area can vary from 000 to 255 (2power8 = 256)

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Web runing out of addreses

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  1. Web runing out of addreses • http://online.wsj.com/article/SB10001424052748704254304576116401267588510.html

  2. IPv4 • An IPv4 address consists of four bytes (32 bits). These bytes are also known as octets. • Ex: 234.5.67.190.086 • Each sub area can vary from 000 to 255 (2power8 = 256) • --- . --- . --- . --- • 0.0.0.0 through 255.255.255.255 • total of 32 bits • 2 power32 4 billion addresses

  3. IPv6 • IPv6 addresses are 16 bytes (128 bits) long • 2 power 128 unique addresses • Typically written as: • hhhh:hhhh:hhhh:hhhh:hhhh:hhhh:hhhh:hhhh • each byte in turns is represented as a pair of hexadecimal numbers, like in the following example: • E3D7:0000:0000:0000:51F4:9BC8:C0A8:6420 hhhh:hhhh:hhhh:hhhh:hhhh:hhhh:hhhh:hhhh

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