[erlang-questions] IPV6_V6ONLY

[Kenji Rikitake]

In the message <20100824075631.GA854@REDACTED>
dated Tue, Aug 24, 2010 at 09:56:07AM +0200,
Raimo Niskanen <raimo+erlang-questions@REDACTED> writes:
> It seems the situation has changed since Stevens' Unix Network Programming
> - The Sockets Networking API, third edition. There it seems one of the strong
> points of a IPv6 socket is that it accepts IPv4 connections _unless_ the
> IPV6_V6ONLY socket option is set.
> 
> Where can these network community discussions be followed where
> can one find a motivation to why FreeBSD has diverged from Stevens' book
> (if that is the case)...

See RFC3493 Section 5.3, and
http://www.ops.ietf.org/lists/v6ops/v6ops.2003/msg01140.html

My opinion is that just because Linux does it is insufficient for making
it as the default for the IPV6_V6ONLY behavior.  And even on FreeBSD you
can make a choice by sysctl param of "net.inet6.ip6.v6only" (see
inet6(4)). I'd rather want to leave the choice to the operating system.

Kenji Rikitake