United StatesThe program for the calculation of addressing in IP networks 4 generations. An Internet Protocol address (IP address) is a numerical label assigned to each device (e.g., computer, printer) participating in a computer network that uses the Internet Protocol for communication. An IP address serves two principal functions: host or network interface identification and location addressing. Its role has been characterized as follows: "A name indicates what we seek. An address indicates where it is. A route indicates how to get there." A subnetwork, or subnet, is a logical, visible subdivision of an IP network. The practice of dividing a network into two or more networks is called subnetting.
Simple, Easy-to-Use CIDR Tool
I run an old school, Macintosh-based, Macintosh-oriented BBS using the last released version of the Hermes II BBS software. Due to the proliferation of spambots and other bots which test for vulnerabilities in my system, I needed a tool to convert IP addresses written in CIDR notation to regular IP ranges. IP-Calc is perfect for the job. It is a very small app weighing in at only 204 KB on my iMac, and it uses just a drop of memory. The user interface is simple and straightforward, and it gets the job done. All you have to do is enter an IP address in the "IP addres or network" field, make a selection in the "IP Mask" section, and then hit the "Result" button". The resulting IP block range and other data immediately appears in the app's window. Yes, there are some online CIDR notation utilities, but I wanted a Mac OS X-based tool right on my computer which I can quickly access. IP-Calc fits the bill. Thanks Alexey!
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