Date: Fri, 22 Jun 2007 04:14:51 +0300 From: Mike Makonnen <mtm@FreeBSD.Org> To: George Michaelson <ggm@apnic.net> Cc: freebsd-net@freebsd.org Subject: Re: how do you bring IPv6 live without reboot? Message-ID: <20070622011451.GA3170@rogue.navcom.lan> In-Reply-To: <20070620094806.3a95ec40@garlique.algebras.org> References: <20070620094806.3a95ec40@garlique.algebras.org>
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On Wed, Jun 20, 2007 at 09:48:06AM +1000, George Michaelson wrote: > > on a 6-STABLE host, I added: > > ipv6_enable="YES" > ipv6_network_interfaces="bge1" > > to rc.conf, and ran /etc/rc.d/network_ipv6 > > this did not bring IPv6 live. rtsol reported problems with get_llflag() > calls. However across reboot, the system came up with IPv6 fine. > > Can somebody explain why this won't work if run after the init sequence > has run to completion? What is the sequence of commands that when run > on an active FreeBSD system causes it to successfully bind to IPv6? IPv6 configuration is still a work in progress. Currently, you can't enable and auto-configure IPv6 *after* the initial boot. The reason for this is that the IPv6 configuration subroutines require all IPv6 interfaces to have a link-local address first. However, the rc.d/auto_linklocal script is executed before all the networking stuff and if IPv6 is not enabled it sets a sysctl(8) variable to prevent the IPv6 subsystem in the kernel from assigning link-local addresses. If you don't want to reboot, then you have to assign the link-local addresses yourself with ifconfig(8) and then run rc.d/network_ipv6 (should work in theory, haven't tried it). Cheers. -- Mike Makonnen | GPG-KEY: http://people.freebsd.org/~mtm/mtm.asc mmakonnen @ gmail.com | AC7B 5672 2D11 F4D0 EBF8 5279 5359 2B82 7CD4 1F55 mtm @ FreeBSD.Org | FreeBSD - http://www.freebsd.org
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