Whatmask 1.2

Whatmask provides a subnet info utility.
Whatmask provides a subnet info utility.

Whatmask is a small C program that helps with network settings. Notations supported are CIDR (e.g. /24), Netmask (e.g., and Wilcard Bits (e.g.

These notations are all identical. CIDR notation commonly has a "/" in front of the number (representing the number of bits). Whatmask can accept these notations with or without a slash.

It can take any IP in the subnet along with the netmask in any format, and it will echo back the netmask in three formats, the network address, the broadcast address, the number of useable IPs, and the range of IPs in the subnet.

Binaries for Linux, Win32, and MacOS 9/X are available.

What's New in This Release:

Added support for hex netmasks
Minor bugfixes / cleanup

last updated on:
March 21st, 2007, 13:05 GMT
developed by:
Whatmask Developer
license type:
GPL (GNU General Public License) 
ROOT \ System \ Networking


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