No, you don't. NetworkManager is perfectly able to handle this kind of configuration, you just need to go to the IPv4 tab for a connection and add the IP addresses.
** Changed in: network-manager (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/931915 Title: more ip addresses on single card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/931915/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs