Due to changes introduced in Docker 1.3.1 related to insecure Docker registries, the hosts running
Deis must be able to communicate via a private network in one of the RFC 1918 or RFC 6598 private
address spaces: 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, or 100.64.0.0/10.