ipcalc - IP Calculator. ipcalc 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....
NetBox - NetBox is an open source web application designed to help manage and document computer networks. NetBox was developed specifically to address the needs of network and infrastructure engineers.
LanCalculator - LanCalculator - IP Subnet Calculator for IPv4/IPv6 Networks - LizardSystems
CMDBuild - CMDBuild is a web enterprise environment designed for asset and database management. It's a favorite among enterprises that need an advanced and secure organization solution for a great deal of files and applications... read more.
whatmask - Whatmask is a small C program that will help you with network settings and subnet calculations.
iTop - By your side to empower your team and bring your customer service to another level