Date: Fri, 03 Aug 2012 14:28:47 +0900 (JST) From: Hiroki Sato <hrs@FreeBSD.org> To: jhay@meraka.org.za Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org, dougb@FreeBSD.org, emax@FreeBSD.org, src-committers@FreeBSD.org Subject: Re: svn commit: r238622 - head/etc/rc.d Message-ID: <20120803.142847.874617321595545142.hrs@allbsd.org> In-Reply-To: <20120803042301.GA78461@zibbi.meraka.csir.co.za> References: <CAFPOs6pM8qrR72kOtZzO90wYembNrtzw7=ig-NSfudJZA7bp6Q@mail.gmail.com> <20120803.124305.1981901625663633450.hrs@allbsd.org> <20120803042301.GA78461@zibbi.meraka.csir.co.za>
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----Security_Multipart(Fri_Aug__3_14_28_47_2012_667)-- Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit John Hay <jhay@meraka.org.za> wrote in <20120803042301.GA78461@zibbi.meraka.csir.co.za>: jh> While you guys are here, may I add a request that we go back to prefering jh> IPv6 when IPv6 addresses are enabled. That is the way it was from FBSD-4 jh> up to FBSD-8. 9 is a big POLA here. The world is past World IPv6 Launch jh> and I think people expect that if they configure IPv6 addresses, that jh> would be prefered. If you configure IPv6 addresses and do not want them jh> prefered, you are the odd one out and should have to do something. jh> jh> Otherwise when in the future are we going to change it? IPv4-preferred was chosen as the default because difference of the loopback performance was large. I am a big fun to make FreeBSD IPv6-capable by default and prefer IPv6, but the concern was a possible negative impact for people who are using only IPv4. So, can we change it for 10.X now? We cannot use "whether IPv6 address is configured" because ::1 is always configured in GENERIC kernel. The change will be "IPv6-preferred if the kernel has INET6 support". Preferring IPv6 addresses has needed a knob in rc.conf even in 4.x: 4.X: ipv6_enable="YES" ipv6_ifconfig_em0="2001:db8::1 prefixlen 64" 9.X and later: ip6addrctl_policy="ipv6_prefer" ifconfig_em0_ipv6="inet6 2001:db8::1 prefixlen 64" and if we change the default to ipv6_prefer, ip6addrctl_policy= line will be unnecessary. -- Hiroki ----Security_Multipart(Fri_Aug__3_14_28_47_2012_667)-- Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iEYEABECAAYFAlAbYY8ACgkQTyzT2CeTzy2F6ACfR7DZj1cYRG19VMvXtv9Wj5g+ 9EEAnRJNtUGyL5dDDc/l5LIvBVFlxNUS =Temk -----END PGP SIGNATURE----- ----Security_Multipart(Fri_Aug__3_14_28_47_2012_667)----
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