I have entry below in my /etc/network/interfaces, this caused NM to not add any Auto ethX but instead present 'ifupdown tap0'
auto tap1 iface tap1 inet static address 10.238.1.1 netmask 255.255.255.0 tunctl_user thnov -- Network manager shows and connects to virtual interfaces https://bugs.launchpad.net/bugs/199140 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