The mistakes and missed opportunities in the design of IPv6 - episode 1

The mistakes and missed opportunities in the design of IPv6 led to its failure to replace IPv4 as widely anticipated. The original proposal for IPv6 was careful, aiming to add a minimum set of new features for easy transition from IPv4. However, it did not solve problems that IPv4 couldn't, making it less attractive to deploy. Despite 30 years of evolution, IPv6 remains flawed in several areas: fragmentation and MTU discovery, extension headers, multi-addressing, scoped and private addresses.