Tools

Network Geographics has several online tools to help you with your network and security administration. Some tools require registration which is a free and easy process. Login or create an account

This online tool lets you convert an arbitrary range of IP addresses to a minimal set of IP networks for security devices that do not accept IP address ranges.

This online tool can be used to convert to and from an IP mask, bitcount and wildcard.

Analyze firewall configurations, either dissect a single configuration or a functional comparison between two configurations. You can generate an HTML report, or by installing a plugin, explore the results in your browser. Registration required.

The Internet Storm Center monitors network attack reports and provides listing of the currently most prevalent ones. This tools uses those reports (the port attack report and the intrusion attempt source report) to generate a constraint check for a firewall configuration. Registration required.

This tool, the firewall configuration obsfucator, rewrites configuration files to shroud the orginal IPv4 addresses in them.