I'm able to reproduce this on Ubuntu 12.04. tcpdump shows that the DNS queries are going out via IPv4.
** Attachment added: "run_nm-dns-dnsmasq.conf" https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1002454/+attachment/3332371/+files/run_nm-dns-dnsmasq.conf -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1002454 Title: IPv4 DNS preferred over IPv6 ones To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1002454/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs