Date: Tue, 06 Oct 2009 07:07:14 +0900 (JST) From: Hiroki Sato <hrs@FreeBSD.org> To: des@des.no Cc: freebsd-current@FreeBSD.org, freebsd-rc@FreeBSD.org Subject: Re: nd6 change and rc.d/network_ipv6 -> rc.d/netif integration Message-ID: <20091006.070714.233607520.hrs@allbsd.org> In-Reply-To: <8663atv9dz.fsf@ds4.des.no> References: <86my45vhlj.fsf@ds4.des.no> <20091006.045043.187164797.hrs@allbsd.org> <8663atv9dz.fsf@ds4.des.no>
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----Security_Multipart(Tue_Oct__6_07_07_14_2009_906)-- Content-Type: Text/Plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Dag-Erling Sm=F8rgrav <des@des.no> wrote in <8663atv9dz.fsf@ds4.des.no>: de> Hiroki Sato <hrs@FreeBSD.org> writes: de> > No, the rc.conf(5) has been updated in r197526: de> > de> > ipv6_enable de> > (bool) If the variable is ``YES'', ``inet6 accep= t_rtadv'' is de> > added to all of ifconfig_<interface>_ipv6 and th= e ipv6_prefer de> > is defined as ``YES''. de> > de> > This variable is deprecated. Use ipv6_prefer an= d de> > ifconfig_<interface>_ipv6. de> = de> Still not very helpful. de> = de> If I install FreeBSD from a release CD and use the GENERIC kernel a= nd do de> *not* want to use IPv6, what do I do? de> = de> Please don't answer "compile a custom kernel". It depends on the definition of "use", but the answer is "do not put any $ifconfig_IF_ipv6 or $ipv6_prefer to your rc.conf". If so, IPv6 will be "disabled" (including communication using link-local addresses) on all of interfaces except lo0. It is the default behavior now. I do not think this means "IPv6 is disabled by default". By adding an IPv6 address by using ifconfig(8) after boot you can still use IPv6 on that interface. This is almost the same as IPv4 does. When I do not want to use IPv4, I do not put any IPv4 addresses to $ifconfig_IF. Strictly speaking the address ::1/128 on lo0 cannot be removed because it is assigned by the kernel itself unlike IPv4's 127.0.0.1, so you can use the loopback address without knowing it. If you do not want to use it, you can disable IPv6 on lo0 manually by "ifconfig lo0 inet6 ifdisabled". Anyway, the existence of this loopback address has not been changed for a long time. -- Hiroki ----Security_Multipart(Tue_Oct__6_07_07_14_2009_906)-- Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) iEYEABECAAYFAkrKbhIACgkQTyzT2CeTzy2PLwCgzqxq1QeRWzxOraPLRqJ0MH4M +osAn25+WBBnoJRbzp7LQ20XJC1hvIIB =SYvh -----END PGP SIGNATURE----- ----Security_Multipart(Tue_Oct__6_07_07_14_2009_906)----
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