Ip2region is an offline IP address manager framework and locator with both IPv4 and IPv6 supported, supporting billions of data segments, ten microsecond searching performance, xdb search client for many programming languages

Lokinet is an anonymous, decentralized and IP based overlay network for the internet.

ipv6calc

Intra-session Network Coding Transport Protocol for IPv4 and IPv6

Simple easy-to-use C library for manipulating TCP/UDP networks in IPv4/IPv6.

libPOG is a simple library for working with the network on C++

Um simples escaner que varre todo o endereço de IP.

A desktop application to use on Microsoft Windows systems. It counts IP addresses by knowing broadcast address and host IP address.

A Python Webserver that would locally host a website you're working on your computer, or even on your local network. So that you don't need to enter the path of the HTML document onto your web browser.