Tracked the problem down to NetworkManager. Implementing the steps necessary to turn off NetworkManager as referenced in bug # 82335 alleviates the problem.
As stated in bug # 82335, NetworkManager really needs not to cause this conflict on a purely statically addressed machine. -- adding non-default route in /etc/network/interfaces doesn't work https://bugs.launchpad.net/bugs/97058 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
