>What are the advantages of IPv6 from a practical standpoint? There are a whole raft of advantages: 1. NAT/CGNAT[0] becomes irrelevant (although you can stil

>What are the advantages of IPv6 from a practical standpoint? There are a whole raft of advantages: 1. NAT/CGNAT[0] becomes irrelevant (although you can still use local/non-routable prefixes if you wish), eliminating many of the issues around port forwarding and reachability of services; 2. While IPSec is broadly available for IPv4, encryption and authentication are baked into IPv6; 3. The enormous size of the IPv6 addresses would allow every location to have their own 16 bits (or more, if necessary) of routable address space; 4. Despite NAT, we have already run out of IPv4 address space[1] across all regions. There are other good reasons for IPv6 too, but those are the most important IMHO. [0] https://en.wikipedia.org/wiki/Carrier-grade_NAT https://en.wikipedia.org/wiki/Carrier-grade_NAT [1] https://en.wikipedia.org/wiki/IPv4_address_exhaustion https://en.wikipedia.org/wiki/IPv4_address_exhaustion