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Information

Keyboard Shortcuts:

  • - decrease CIDR
  • - increase CIDR
  • - Randomize Network bits
  • - Randomize Host bits
  • Space - Randomize everything
  • N - View Network ID
  • F - View First Host IP
  • L - View Last Host IP
  • B - View Broadcast IP
  • X - View Next Network

Direct Linking

This tool supports linking directly to an IP / CIDR value. Simply add ?ip=5.5.5.5/27 to the URL to go directly to this IP and Mask combination.

Note from Ed:

I made this tool for two reasons:

  • To help visualize the relationship between CIDR, Binary Subnet Masks, and Subnet Masks.
  • To help visualize how the CIDR/Subnet Mask affects an IP address

This was initially a teaching tool for my students, but I thought to give it to the world in hopes that other students (or teachers!) can use it to help in the learning journey.

Feedback? Mention it on my Discord server: pracnet.net/discord.

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