Ns is a discrete event simulator targeted at networking research. It provides substantial support for simulation of TCP, routing, and multicast protocols over wired and wireless (local and satellite) networks.
network
networking
simulation
research
License:BSD
network-emulation
ns2
NS-2
dSniff is a suite of sniffing tools for penetration testing.
dSniff includes packet sniffing and traffic analysis tools. dSniff can do things like decode passwords being sent over a network and display them in plain text, intercept SSH sessions, and spy on web traffic.
It can also spy on AIM, and break some ethernet switches.
Security
linux
network
networking
packet-sniffer
penetration-testing
dsniff
License:BSD
Dug-Song
Libnet is a collection of routines to help with the construction and handling of network packets. It provides a portable framework for low-level network packet shaping, handling, and injection. It features portable packet creation interfaces at the IP layer and link layer, as well as a host of supplementary and complementary functionality.
Netdisco is a Web-based network management tool.
Security
network
netdisco
snmp
network-management
License:BSD
The libevent API provides a mechanism to execute a callback function when a specific event occurs on a file descriptor or after a timeout has been reached.
libevent
Library
Server
network
I/O
EDSM
asynchronous
License:BSD