Ah ha! Initially I was using DHCP and while troubleshooting I noticed there were no files in /etc/NetworkManager/system-connections/ I created an arbitrary file called auto-eth0 based on http://fedoraproject.org/wiki/Tools/NetworkManager/IPv6 to no avail.
After setting a static IPv4 address using the GUI (System -> Network -> Options), I noticed a file had been created: "/etc/NetworkManager /system-connections/Wired connection 1" Seems there is a problem invoking the creation of this file. A little finagling is required. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1176415 Title: Unable to enable IPv6 Privacy Extensions on eth0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1176415/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs