What does a double colon (::) represent in an IPv6 address notation?

Last Updated: Dec 4, 2023
IT Exam Items Repository › Category: Networking Basics › What does a double colon (::) represent in an IPv6 address notation?

What does a double colon (::) represent in an IPv6 address notation?

  • a continuous string of one or more hextets that contain only zeros
  • at least eight occurrences of the same non-zero value
  • the boundary between the network portion and the host portion of the address
  • the beginning of the MAC address assigned to the IPv6 device

Explanation: To help reduce the notation of IPv6 addresses a double colon (::) can replace any single, contiguous string of one or more hextets consisting of all zeros. Only one instance of the double colon can be used in any IPv6 notation.

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