Simple IP Calculator sub/sup networking

Simple IP Calculator sub/sup networking, it is versatile tool for network/system administators as well as general users (implemented in a single file Pure Ruby code). * Development Status: 5 - Production/Stable * Environment: Console (Text Based) * Intended Audience: End Users/Desktop, Other Audience, System Administrators * License: GNU General Public License (GPL) version 2 * Natural Language: English * Operating System: POSIX * Programming Language: Ruby * Topic: Testing, Networking, Systems Administration