Reliable Subnet Calculator for Windows

User Reviews

• Ugly UI, VERY limited program

  MaLaCoiD9/22/2010

  Pros

  You feed it two IP's. It gives you a mask which will encompass both of them.

  Cons

  Not very useful. Mask output only in 252.0.0.0 type of output.

  Summary

  Don't waste your time.

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• Sweet and Simple!

  tsdragon11/17/2009

  Pros

  Does one thing and does it well. Enter a range of IP addresses and it will tell you the submask needed. No guessing, no trial and error. No other program I looked at will do that.

  Cons

  User interface could use a little work. Instead of entering dots you must tab from box to box to enter the four octets.

  Summary

  If all you need to do is calculate subnets to get a desired range of IP addresses (for example, to block hacker's IPs), this program is it! Enter an IP address range and it will tell you the submask needed. No guessing, no trial and error. No other program I looked at will do that.

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