On Fri, 26 Nov 2010, Kolbjørn Barmen wrote: > > > auto eth0 > > > iface eth0 inet static > > > address 10.10.10.10 > > > gateway 10.10.10.1 > > > netmask 255.255.255.0 > > > iface eth0 inet6 static > > > address 2001:700:0::beaf > > > gateway 2001:700::1 > > > netmask 64 > > > up /sbin/sysctl -w net.ipv6.conf.eth0.autoconf=0 > > > up /sbin/sysctl -w net.ipv6.conf.eth0.accept_ra=0 > > > > > > But this only work _most_ of the time. Every now and then the sysctl > > > lines are not performed quickly enough and due to bad luck the > > > server also picks up autoconf address and router announcement, > > > ending up with double set of addresses and non-static default route. > > > > How about using pre-up? Wouldn't that always work? > > Certainly should. I remember having played with "pre-up", but do not > remember why I ended up with "up" instead.
I have played around with this over the weekend, and using "pre-up" is just as unreliable as using "up" , the result is the same, every now and then machines comes up with autoconfigured address and routes. The only reliable way is to use kernel parameters "ipv6.disable_ipv6=1 ipv6.autoconf=0" and then configure things manually in /etc/sysctl.d/ipv6.conf accordingly: net.ipv6.conf.default.autoconf=0 net.ipv6.conf.default.accept_ra=0 net.ipv6.conf.default.disable_ipv6 = 0 net.ipv6.conf.all.autoconf=0 net.ipv6.conf.all.accept_ra=0 net.ipv6.conf.lo.disable_ipv6=0 I really find this entire issue most inconvenient, and the only _proper_ solution would be to have autoconf/accept_ra by default off in the kernel itself, and then let the distros/users enable it with sysctl, which is pretty darn easy to do, compared to what's needed for static setups now. But I already lost that battle last year, allthough it did lead to the kernel module options we have now :P Ah well, as IPv6 becomes more and more mandatory, I suppose others will find themselves in the same situation as we are, there will be outcry, and attitudes will hopefulle change. -- Kolbjørn Barmen UNINETT Driftsenter -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
