Open Source C Networking Software

Build, Design and Test your network in a risk-free virtual environment and access the largest networking community to help. Whether you are studying for your first networking exam or building out a state-wide telecommunications network, GNS3 offers an easy way to design and build networks of any size without the need for hardware.

VirtualBox is a powerful open-source full virtualization software that allows a user to run one or more “guest” operating systems simultaneously inside “virtual machines” on a single physical “host” machine. It supports a wide variety of host platforms (Linux, Windows, macOS, Solaris, etc.) and guest OSes, enabling, for example, running Linux on a Windows PC, running Windows Server on a Linux host, or even legacy OSes in a controlled environment. This flexibility makes VirtualBox ideal for developers, testers, sysadmins, or hobbyists who need different OS environments, want to test software across systems, or need isolation for development, sandboxing, or security experiments. VirtualBox offers both a user-friendly GUI as well as a command-line interface and headless mode, making it useful for desktop usage as well as server or automated environments.

Network Threat Simulation Tool (NTST) will be able to effectively simulate any network security threat including worms, Trojans, spywares, & exploits. It will help in testing the effectiveness of network security devices like IDS/IPS/Firewall.

KauNet is an emulation platform that can be used for evaluation of protocols and distributed applications with a high degree of control and reproducability. KauNet uses pattern files to control bit-error insertion, packet loss, bandwidth and delay.

SQS is a project assigned to remote management of computer systems. It provides a means by which a user may control the task queue on a remote computer. The system is flexible and easy to use, configure, and install. It includes secure data transfers.

Instead of requiring cygwin and all it's dependencies, I'm going to build Dynamips on MinGW. I am currently using a fork of the latest GIT source. So far, I've been able to run things that I can run with the Cygwin version, and some of the broken features are on par. I've also been able to merge in the 'unstable' PowerPC core which can run things the 'stable' cannot. Transport wise, I've gotten it to talk with pcap and UDP. I have the groundwork to make it dynamic so that pcap isn't required to run it, so you can run dynamips without installing anything. I hope to add some different underlying networking connections.

A virtual machine inspired by the concept of IBM's z/VM. The goal is to create a secure, fast and reliable server platform with focus on security with the ability to nest more VMs.

Introduces packet latency and loss between two TUN/TAP interfaces for network simulations.

PVNet is a project providing a virtual network interface. It generates numbers of pure virtual ethernet adapter. It is tested for Linux kernel 3.0.8 on amd64 cpu. Its code contains a kernel patch and module code. You can use it to create many ethernet cards. Each device has a single mac address.