Resources:
• Understanding IP Addressing
• CIDR FAQ

More from jafar.com:
• JImageMap - Image Map Editor
• Color Selector

Free Downloads:
Applet Demo:
• PkZip Archive
• Gzipped tar

Links:
• Java Plugin 1.1.2

Online Demo • Feature List • Purchase Online • Feedback

The IP Subnet/Supernet Calculator is a 100% pure Java^TM application to assist in computing subnet/supernet information for IP networks. For a given IP network class, it calculates the maximum possible number of subnets and hosts, in addition to a host of other variables. A list of all the subnets and host addresses in each subnet are also computed. Class Inter-Domain Routing (CIDR) is supported for use in supernetting networks. A Base Converter for converting between decimal, octal, binary and hexadecimal numbers is also included.

The IP Subnet/Supernet Calculator can also be run as an applet in a Java-enabled browser. Both the application and applet versions have been successfully tested on Linux, Windows and Solaris platforms.