Appendix F. Windows Sockets Changes for IPv6

This appendix includes information about changes that have been made to the Windows Sockets application programming interface (API) to support Internet Protocol version 6 (IPv6) applications, and it provides examples of how and when to use these changes in an application. It includes information about the following topics:

  • Added constants

  • Address data structures

  • Wildcard addresses

  • Core sockets functions

  • Name-to-address translation

  • Address-to-name translation

  • Address sorting

  • Address conversion functions

  • Socket options

  • New macros

Changes to Windows Sockets for IPv6 are defined in RFCs 3493 and 3542.

Additional details about how to modify applications so that they can use both IPv4 and IPv6 can be found in the “IPv6 ...

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