FYI if anyone is also affected by this bug, I was able to find a workaround. See the last comment by idallen here:
http://ubuntuforums.org/showthread.php?t=1431860&p=12313662#post12313662 Essentially you want to do this: * Remove all references to interfaces from the /etc/dhcp/dhclient.conf file * Create separate configuration files for each interface with the options specific to each interface * In the /etc/network/interfaces file, mark all DHCP interfaces as "manual" instead of "dhcp" * Add a line to /etc/network/interfaces for each DHCP interface to manually bring it up using a command line that explicitly specifies its config file For example, this is one of the stanzas in my /e/n/i file: allow-hotplug lte0 iface lte0 inet manual up dhclient -1 -v -cf /etc/dhcp/dhclient-lte0.conf -pf /run/dhclient.lte0.pid -lf /var/lib/dhcp/dhclient.lte0.leases lte0 down dhclient -r -cf /etc/dhcp/dhclient-lte0.conf -lf /var/lib/dhcp/dhclient.lte0.leases lte0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1524093 Title: dhclient operates on incorrect interface To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1524093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs