APSR is a network testing tool, designed to send and receive arbitrary network packets. It can be used to test firewalls, routing, security and many other things. The project is splitted in two main programs, apsend to create packets and aprecv to sniff packets. The main goal of the APSR project is to develop a high quality network testing tool.
cnet enables experimentation with various data-link layer, network layer, routing and transport layer networking protocols. It has been specifically developed for, and used in, undergraduate computer networking courses taken by thousands of students since 1991.
dietsniff is a network debugging-tool like tcpdump or ethereal. The difference to those powerful tools however is that dietsniff is linked against the dietlibc by Felix von Leitner and doesn't require the libpcap.
Mausezahn is a fast traffic generator which allows you to send nearly every possible and impossible packet. Mausezahn can be used, for example, as a traffic generator to stress multicast networks, for penetration testing of firewalls and IDS, for simulating DoS attacks on networks, to find bugs in network software or appliances, for reconnaissance attacks using ping sweeps and port scans, or to test network behavior under strange circumstances. Mausezahn gives you full control over the network interface card and allows you to send any byte stream you want (even violating Ethernet rules).
Mksend is a network testing tool. You can redirect, modify and send frames from a traffic active link. And you can send owner frames (below supported protocols list).
Network Leak Finder
Network Leak Finder is a collection of small perlscripts that detects connectivity between network segments. It is mostly useful to detect "leaks" in large organizations that have private network segments physically separated from the Internet.
Network Traffic Generator
Network Traffic Generator is a traffic generator. It is used to check what massive amounts of traffic of certain type will do to an intervening network.
pipebench measures the speed of a pipe, by sitting in the middle passing the data along to the next process.
Simple Fuzzer is a very simple fuzzer. The goal is to provide a simple to use, but fairly powerful and flexible black box testing utility.
SPIKE is a protocol analysis and reproduction tool. It currently is excellent for web application analysis. It also contains an MSRPC fuzzer.
The Swing Traffic Generator
Swing is a closed-loop, network-responsive traffic generator. It accurately reproduces packet interactions (at multiple timescales) using a simple structural model, starting from observed traffic on a link.
TPTEST is a software suite for testing network throughput and Internet services. It consists of a software library with test functions that can be implemented in test client and server applications. Reference client/server apps are also included.
Uppaal is an integrated tool environment for modeling, validation and verification of real-time systems modeled as networks of timed automata, extended with data types (bounded integers, arrays, etc.).
Uppaal TRON is a testing tool, based on Uppaal engine, suited for black-box conformance testing of timed systems, mainly targeted for embedded software commonly found in various controllers. By online we mean that tests are derived, executed and checked simultaneously while maintaining the connection to the system in real-time.
Wide Area Link Emulator
WALE is a Wide Area Link Emulator which gives the flexibility of setting various parameters of a bottleneck link, such as packet send and receive rates, send/receive buffers, send/receive propagation delays, enabling random loss modules, etc.