Definition: An octet represents any eight-bit quantity. By definition, octets range in mathematical value from 0 (zero) to 255.
Typically in computer networking, an octet is the same as a byte. However, the term "octet" came into existence because historically some computer systems did not represent a byte as eight bits; octets and bytes are *not* the same on such systems.
Octets most commonly refers to any of the four bytes of an IPv4 address. In dotted-decimal notation, an IP address appears as follows -
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[ octet ] . [ octet ] . [ octet ] . [ octet ]
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192 . 168 . 0. 1
Also Known As: byte

