IPv6 is in no way more complicated than IPv4, especially if you include all the things you need to make IPv4 work in practice (NAT, techniques for dealing with

IPv6 is in no way more complicated than IPv4, especially if you include all the things you need to make IPv4 work in practice (NAT, techniques for dealing with NAT, etc.). IPv6 is different which is probably why you are having trouble: you wanted something just like IPv4 but with larger addresses, but that is not IPv6. For me the key to understanding IPv6 was to view it as something totally different, and not try to map my understanding of IPv4 onto IPv6. Now I am aggressively against IPv4, because over and over I see problems resulting from NAT, or collisions in private address ranges on two LANs, or broken path MTU discovery, etc. The only arguments for IPv4 are economic or political; at this point the technical debate is over and IPv6 is a clear winner (the majority of technical problems in IPv6 deployment are related to compatibility with IPv4).