Microsoft IP Address Management Server - IP Address Management (IPAM) in Windows Server® 2012 is an integrated suite of tools to enable...
LanCalculator - LanCalculator - IP Subnet Calculator for IPv4/IPv6 Networks - LizardSystems
Simple IP Config - View and change your local IP addresses. Contribute to KurtisLiggett/Simple-IP-Config development by creating an account on GitHub.
Port Authority - A handy systems and security-focused tool, Port Authority is a very fast Android port scanner.
Progress WhatsUp Gold - Progress WhatsUp Gold is an all-in-one Network monitoring utility that now offers even more features and functionality to help you monitor your servers, network, and IP address.
whatmask - Whatmask is a small C program that will help you with network settings and subnet calculations.