Subnet Creator / News: Recent posts

SubnetCreator (http://subnetcreator.sourceforge.net), a useful GUI utility for converting IP address ranges into a series of subnets, has added Windows support to its legacy X support.

Version 1.5 also fixes a serious bug in the test4Subnet() method of the IPRange class. This does not affect SubnetCreator but is a critical issue for anyone using the IPRange class elsewhere. Users of the IPRange class are STRONGLY encouraged to upgrade.... read more

SubnetCreator is a simple tool with a single purpose - it is a reverse subnet calculator. One gives SubnetCreator a range of IP addresses and SubnetCreator produces a list of the subnets needed to create that range. For example, if one needed to create iptables rules for users in the IPv4 address range of 10.1.1.100 to 10.1.1.133, SubnetCalculator would turn that range into a series of subnets that could be used for iptables rules.... read more