iCIDR


iCIDR v 2.0

iCIDR was designed out of necessity. A personal need to have a simple, easy to use tool for performing CIDR network block math and network masks with complete confidence.

A cornerstone of worldwide network communications is Classless Inter-Domain Routing, also known as CIDR. CIDR blocks help routers move packets based on a shorthand method of telling another system what IP ranges the devices can route. Now, if you’re looking at this tool, you most likely know more about CIDR than I can possibly cover here, so I’ll focus on the unique features of this Application:

CIDR CONVERT

CIDR Convert(er) is a simple to use tool that allows rapid deconstruction and understanding of any valid CIDR block notation.

For example. You’ve received a block of IP’s from your ISP. Maybe they are add-ons to your existing network. Perhaps you are deploying a completely new network. When you look at the provisioning worksheet and see the notation 17.251.200.70/25 you will want to know what IPs are part of that range. Instead of trying to do perform the 32-bit math in your head, or on a calculator, why not just use this handy tool? If you with a simple push of a button you’d have known:

  • The true starting IP address of the block: 17.251.200.70
  • The top, or end of the IP block: 17.251.200.127
  • The decimal equivalent of both the starting and ending IP ranges. Useful in only a few situations, but when you need it, you really need it. (In this case they are 301713408 and 301713535 respectively).
  • E-mail the results anywhere, using the iOS built in mail application

Don’t spend your time calculating the offset with your scientific calculator, just use iCIDR

Version 2.0 Available Now!

Price: $1.99 USD On Sale for a short time, now! $.99

iCIDR - David DeMartini

Screen Shots

iPhone Screens

CIDR Input Screen

CIDR Reference

Utilities

iPad Screens

iPad Unified Screen