jamesotron/IPAddrExtensions — pull request #4 by nward (2014-07-28 11:12:22+00:00)
Title: cidr alias and subnets(length) method

Aliased cidr to to_string_including_length
Added a method which chops a prefix in to subnets of a certain length. Similar in use to IPAddr#/(by) but takes a bit length for the subnets rather than a total number of subnets.