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 17:37:56 +0100

 On Thu, Jan 18, 2024 at 04:25:02PM +0000, Sergei K wrote:
 >  with defaults. Even after I waited for all these ip6 requests to fail 
 >  with timeout and successfully installed the system, pkg_add also worked 
 >  with huge delays (~7m) ip4 used only after lan-only ip6. I found two 
 >  ways to fix this:
 
 7m is a strange value, I would have expected maximal 1m (per request).
 What does it do that long, can't be trying to connect to the non-reachable
 IPv6 address?
 
 Can you show the output of
 
 	host cdn.netbsd.org
 
 on your system?
 
 A workaround for such setups w/o changing the network environment would
 be to implement "happy eyball" both in ftp(1) and libfetch (for pkg_add),
 which I would love to see in general (but it does not fit into both internally
 very well).
 
 Martin