If you get deep-and-dirty with the technicalities of IP networking, the chances are that you have come across RFCs (short for “requests for comments”). These are the standards documents of the IETF (Internet Engineering Task Force). However, not all RFCs are actually standards. The IETF has done much to try and demystify their standards process [...]

Apologies to Shakespeare, but it really does feel that long ago since IPv6 was first touted as coming soon (if not RSN - ‘real soon now’). However, the network world is still firmly routed in IPv4. There are a number of reasons for that:

There still isn’t universal support for IPv6 in devices.
Not all Internet Service Providers yet [...]