What is it?
Subnetting calculator takes an IP address and netmask and calculates the resulting broadcast, network, Cisco wildcard mask, and host range. By giving a second netmask, you can design subnets and supernets. It is also intended to be a teaching tool and presents the subnetting results as easy-to-understand binary values.Last Updated: 3 years ago
Please describe the problem you're having with this tool only. If we can reproduce the issue it will be fixed shortly.