Re: kern/44943: 2002::/16 (6to4) addresses are preferred over native IPv6 transport

[Fredrik Pettai <pettai%nordu.net@localhost>]

The following reply was made to PR kern/44943; it has been noted by GNATS.

From: Fredrik Pettai <pettai%nordu.net@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/44943: 2002::/16 (6to4) addresses are preferred over native 
IPv6 transport
Date: Sat, 7 May 2011 22:11:47 +0200

 >> Category:       kern
 >> Responsible:    kern-bug-people
 >> Synopsis:       2002::/16 (6to4) addresses are preferred over native =
 IPv6 transport
 >> Arrival-Date:   Sat May 07 13:50:00 +0000 2011
 
 A NetBSD 5.99.51 example with ftp:
 
 -bash-4.2$ ftp 6to4test.hactrn.net
 Trying 2002:931c:13::1:21 ...
 ftp: Can't connect to `2002:931c:13::1:21': Connection refused
 Trying 2001:418:1::19:21 ...
 ftp: Can't connect to `2001:418:1::19:21': Connection refused
 Trying 147.28.0.19:21 ...
 ftp: Can't connect to `147.28.0.19:21': Connection refused
 ftp: Can't connect to `6to4test.hactrn.net:ftp'
 ftp>=20
 
 A better default would be to avoid trying to connect to 2002:: addresses =
 if native IPv6 (and IPv4) is available, and only use 2002:: addresses as =
 last resort...=