Configuration systems for those typically do support symbolic prefixes for easy renumbering and deployment of sibling networks. Also, most people dealing with

Configuration systems for those typically do support symbolic prefixes for easy renumbering and deployment of sibling networks. Also, most people dealing with rfc1918 networks would much rather get rid of addressing conflicts and other problems resulting from non-unique addresses, like security problems arising from ambiguous addressing. (Or don't know what they're missing...)