Re: install/57864: Install first tries to load from cdn.netbsd.org using ipv6

[Martin Husemann <martin%duskware.de@localhost>]

The following reply was made to PR install/57864; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: install/57864: Install first tries to load from cdn.netbsd.org
 using ipv6
Date: Thu, 18 Jan 2024 06:53:58 +0100

 On Thu, Jan 18, 2024 at 03:45:01AM +0000, sk757a%outlook.com@localhost wrote:
 > Install gives priority to ipv6 addresses and this leads to long waits
 > and messages Can't connect to [2a04:4e42:...]:80 Operation timed out.
 > Sometimes many times in a row. My provider does not support ipv6, but
 > ipv6 works on the local network.
 
 The installation assumes a working internet connection (if you use the
 network download parts). It does not prefer IPv6 over IPv4 or vice
 versa, but assumes you can use the addresses returned from DNS if
 there is a route.
 
 You have several options:
 
  - fix the DHCP setup to not provide a default route for IPv6
  - fix the DNS setup (e.g. by using a DNS cache that filters external
    IPv6 responses)
  - pick a sane provider that properly supports dual stack access
    (yes, I know that my be hard)
  - use a tunnel service to get proper external IPv6 routed to your
    local network (Hurricane electric are an example of a free offer for that)
 
 So even if that may sound a bit harsh, I would not consider this a bug
 in the installer.
 
 Martin