> But as soon as I run "exec /sbin/init" from that bash prompt the machine > once again starts ignoring ipv6, so clearly something that upstart is > doing is killing the ipv6.
Well, the "something that upstart is doing" is "booting the system and running the configured scripts and jobs". Upstart itself doesn't touch the network stack at all. So even though you say ifupdown isn't configured to manage any of the network interfaces, I'm reassigning the bug there for further analysis. ** Package changed: upstart (Ubuntu) => ifupdown (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1149527 Title: upstart kills ipv6 networking To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1149527/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs