CIDR Trainer
CIDR Trainer helps you learn to calculate IPv4 and IPv6 subnet information:
For people who need a review, it includes a set of 1-digit and 2-digit binary math drills:
Directed drills enable people to learn to identify valid IPv4 addresses and address types:
CIDR Trainer gives practice on converting between different prefix-length / subnet-mask formats:
Finally, CIDR Trainer provides practice calculating network information for various subnet sizes.
Each drill includes a specific help page, teaching how to perform the drill.
CIDR Trainer is supported on iOS, iPadOS, and MacOS.
For questions and support, email feedback@networkmom.net
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