Don't bother promoting IPv6 as "the future". It's never going to be the default. - feddit.nl

Basically what the title says. Here’s the thing: It’s a solved problem. NAT already took care of this via RFC 1631. While initially presented as a temporary fix, anyone who thinks it’s going anywhere at this point is simply wrong. And then there are the downsides of IPv6: - Not all legacy equipment likes IPv6. Yes, there’s a lot of it out there. - “Nobody” remembers an IPv6 address. I know my IPv4 address, and I’m sure many others do too. Do you know your IPv6 address, though? - Everything already supports IPv4 - For IPv6 to fully replace IPv4, practically everything needs to move over. De facto standards don’t change very easily. There’s a reason why QWERTY keyboards, ASCII character tables, and E-mail are still around, despite alternatives technically being “better”. Sure, IPv6 is nice and all. But as an addition rather than as a replacement. I’ve disabled it by default for the past 10 years, as it tends to clutter up my ifconfig overview, and I’ve had no ill effects. Source: Network engineer.