From: Crystal Kolipe Subject: Re: installer: default to IPv6 autoconf if IPv4 is not configured To: Klemens Nanni Cc: Peter Hessler , Andrew Hewus Fresh , OpenBSD tech Date: Sun, 16 Nov 2025 10:21:59 +0000 On Sun, Nov 16, 2025 at 08:16:01AM +0000, Klemens Nanni wrote: > 16.11.2025 14:52, Peter Hessler ??????????: > > On 2025 Nov 15 (Sat) at 20:01:03 -0800 (-0800), Andrew Hewus Fresh wrote: > > :On Fri, Nov 14, 2025 at 04:14:06PM +0000, Klemens Nanni wrote: > > :> When you opt out of IPv4, the only sane default for IPv6 becomes 'autoconf' > > :> as we cannot magically guess an address and 'none' means no network at all, > > :> which is equivalent to not configuring the interface in the first place: > > :> > > :> Available network interfaces are: vio0 vlan0. > > :> Network interface to configure? (name, lladdr, '?', or 'done') [vio0] > > :> IPv4 address for vio0? (or 'autoconf' or 'none') [autoconf] none > > :> -IPv6 address for vio0? (or 'autoconf' or 'none') [none] > > :> +IPv6 address for vio0? (or 'autoconf' or 'none') [autoconf] > > :> > > :> The diff is trivial and the result is typing convenience for installs > > :> (upgrades don't run these questions) in IPv6-mostly or -only networks. > > :> > > :> Feedback? OK? > > : > > :I didn't have time to test this, but it looks OK to me and seems like a > > :nice idea. I wonder if we will ever get to the point where it makes > > :sense to always default this to on. > > : > > > > The vast majority of networks I connect to (home, work, conference) have > > IPv6; so I would be delighted by having IPv6 autoconf as the default. > Same here, I just thought folks would object, hence the less "invasive" mini-step. > > But if there's support... I'd also like to see IPv6 autoconf as the default.