The INET Framework is an open-source communication networks simulation package for the OMNeT++/OMNEST simulation environment. The INET Framework contains models for several Internet protocols: UDP, TCP, SCTP, IP, IPv6, Ethernet, PPP, IEEE 802.11, MPLS, OSPF, and several other protocols.

MiXiM is an OMNeT++ modeling framework created for mobile and fixed wireless networks (wireless sensor networks, body area networks, ad-hoc networks, vehicular networks, etc.). It offers detailed models of radio wave propagation, interference estimation, radio transceiver power consumption and wireless MAC protocols (e.g. Zigbee).

INETMANET is a fork of the INET Framework containing additional adhoc routing protocols and other models written by the community.

VNS is a simulation framework that completely integrates the mobility and network components in a transparent and efficient way, reducing the overhead of communication and synchronization between different simulators. VNS provides bi-directionally interaction between a microscopic mobility model and network simulators such as OMNET++.

This project exploits discrete simulation of a network for automated analysis of security properties. Network topology is formally built using nodes (e.g., routers) and links. Nodes include network interfaces with IP addresses, filtering rules (express using ACLs), and routing processes. Using automated simulation with changing configuration (links going up and down), dynamic behaviour of the network is observed and analyzed. The goal is to find out weak points of the network design and configuration.

Castalia is a simulator for Wireless Sensor Networks (WSN), Body Area Networks (BAN) and generally networks of low-power embedded devices. It is developed in the Networked Systems theme at NICTA, since 2007. Castalia is used by researchers and developers to test their distributed algorithms and/or protocols in realistic wireless channel and radio models, with a realistic node behaviour especially relating to access of the radio. Castalia's salient features include: model for temporal variation of path loss, fine-grain interference and RSSI calculation, physical process modeling, node clock drift, and several popular MAC protocols implemented. Castalia is highly parametric. It provides tools to help run large parametric simulation studies,  process and visualize the results.

OverSim is an open-source overlay network simulation framework for the OMNeT++/OMNEST simulation environment. The simulator contains several models for structured (e.g. Chord) and unstructured (e.g. GIA) peer-to-peer protocols. more...

OppBSD integrates essential parts of the real FreeBSD networking stack into OMNeT++ as a simulation model. Every simulated host (or router) runs its own copy of the FreeBSD kernel's networking stack. Consequently, the simulation model is very accurate, i.e., almost behaving like a real implementation. Release 4.0 works with OMNeT++ v4.3 (alternatively v4.1, v4.2) and provides IPv6 support. Presently, the package covers the full TCP/IP stack including IPv4, IPv6, UDP, TCP, ICMP, ICMPv6, ARP, ND, sockets and Ethernet frames.