> no address space overlap between IPv4 and IPv6, an inherent design flaw of the IPv6 This is not an inherent design flaw and is often brought up in IPv6 threa

> no address space overlap between IPv4 and IPv6, an inherent design flaw of the IPv6 This is not an inherent design flaw and is often brought up in IPv6 threads commonly referred to as the "just add more octets, bro" argument. This comment[0] sums it up well, but I'll leave it here for convenience: > Fact is you'd run into exactly the same problems as with IPv6. Sure, network-enabled software might be easier to rewrite to support 40-bit IPv4+, but any hardware-accelerated products (routers, switches, network cards, etc.) would still need replacement (just as with IPv6), and you'd still need everyone to be assigned unique IPv4+ addresses in order to communicate with each other (just as with IPv6). [0]: https://news.ycombinator.com/item?id=37120422 https://news.ycombinator.com/item?id=37120422