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The BGP swiss army knife of networking
A network test utility for sending / receiving TCP and UDP packets
3proxy - tiny free proxy server
A network address manipulation library for Python
Retrieve and parse whois data for IPv4 and IPv6 addresses
A deployment-ready 6LoWPAN Border Router solution based on Contiki
:globe_with_meridians: A Python implementation of the OSI networking layers, eventually with IPv6 mesh-networking support.
Mirrorbits is a geographical download redirector written in Go for distributing files efficiently across a set of mirrors.
Netflow iptables module for Linux kernel (official)
Socket and Networking Library using msgpack.org[C++11]
Enterprise Network Flow Collector (IPFIX + sFlow)
PHP Library for manipulating network addresses (IPv4 and IPv6)