I tested on precise and trusty, and this problem doesn't appear there, so only xenial requires the ifupdown SRU.
** Changed in: ifupdown (Ubuntu Trusty) Status: In Progress => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1447715 Title: dhclient -6: Can't bind to dhcp address: Cannot assign requested address To manage notifications about this bug go to: https://bugs.launchpad.net/ifupdown/+bug/1447715/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs