I did a little debugging. It isn't dhclient's fault after all, but laptop-net, that ignores /etc/network/interfaces altogether. Sorry, please close.
-- Option "metric" in /etc/network/interfaces broken https://bugs.launchpad.net/bugs/504407 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs