NetBSD 10.1 Installer BUG: IPv6 is enabled by default.

[Thomas Dettbarn <dettus%dettus.net@localhost>]

Hello.

tl;dr: This is actually more of a feature request to dis/enable 
IPv6/INET6 in the installer.



As I am writing this, I am installing NetBSD 10.1 in a virtual machine.
Alas, there is an issue with IPv6: Apparently, it is enabled by default, 
and each time the installer is trying to fetch a package from your 
server, this happens:

     Status: Running
    Command: /usr/bin/ftp -a 
http://cdn.NetBSD.org/pub/NetBSD/NetBSD-10.1/amd64/
binary/sets/base.tar.xz

────────────────────────────────────────────────────────────────────────────────
Trying [2a04:4e42:6f::262]:80 ...

It is then waiting for the timeout to finish, which.
takes.
forever.
and.
then.
some.

Once the timeout has been hit, the installation itself is fast.


To make sure that it is an issue with IPv6 in the installer, I tried 
using the same QEMU parameters and installing a VM with OpenBSD.
Unsurprisingly, it went through.


AS A USER, this is annoying as hell.
Thus, I would like to suggest an option to disable IPv6 alltogether in 
the installer.
AS A DEVELOPER, I would guess it is as easy as passing the extra option 
-4 to the dhcpd running in the background.




Thomas