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From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>
To: Hiroki Sato <hrs@FreeBSD.org>
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Date: Mon, 05 Oct 2009 20:08:40 +0200
In-Reply-To: <20091005.182342.167950100.hrs@allbsd.org> (Hiroki Sato's message
	of "Mon, 05 Oct 2009 18:23:42 +0900 (JST)")
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Cc: freebsd-current@FreeBSD.org, freebsd-rc@FreeBSD.org
Subject: Re: nd6 change and rc.d/network_ipv6 -> rc.d/netif integration
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Hiroki Sato <hrs@FreeBSD.org> writes:
> John Hay <jhay@meraka.org.za> writes:
> > Is there a good reason why we still ship with ipv6 off by default?
> What do you mean by "off by default"?  I think IPv6 is not disabled by
> default with the patch.

% ident /usr/src/etc/defaults/rc.conf=20
/usr/src/etc/defaults/rc.conf:
     $FreeBSD: head/etc/defaults/rc.conf 197619 2009-09-29 16:49:10Z dougb $
% grep ipv6_network_interfaces /usr/src/etc/defaults/rc.conf
ipv6_network_interfaces=3D"none"	# List of IPv6 network interfaces
#ipv6_network_interfaces=3D"ed0 ep0"	# Examples for router
% grep ipv6_prefer /usr/src/etc/defaults/rc.conf=20
ipv6_prefer=3D"NO"	# Use IPv6 when both IPv4 and IPv6 can be used

Does mean that IPv6 is disabled by default?  Who knows?  There is no
coherent explanation *anywhere* of what these variables mean, and
rc.conf(5) does not mention them at all.  In fact, the first hit for
"ipv6" in rc.conf(5) is this:

     ipv6_enable
                 (bool) Enable support for IPv6 networking.  Note that this
                 requires that the kernel has been compiled with options
                 INET6.

DES
--=20
Dag-Erling Sm=C3=B8rgrav - des@des.no