Welcome to the OMNeT++ Community!

OMNeT++ is an extensible, modular, component-based C++ simulation library and framework, primarily for building network simulators. "Network" is meant in a broader sense that includes wired and wireless communication networks, on-chip networks, queueing networks, and so on. Domain-specific functionality such as support for sensor networks, wireless ad-hoc networks, Internet protocols, performance modeling, photonic networks, etc., is provided by model frameworks, developed as independent projects. OMNeT++ offers an Eclipse-based IDE, a graphical runtime environment, and a host of other tools. There are extensions for real-time simulation, network emulation, alternative programming languages (Java, C#), database integration, SystemC integration, and several other functions.

OMNeT++ is free for academic and non-profit use, and it is a widely used platform in the global scientific community. Commercial users must obtain a license from More...

Featured Projects:

   INET Framework (Internet and LAN protocols)   INETMANET (mobile and ad-hoc networks)   Oversim (peer-to-peer networks)   Veins - Vehicles in Network Simulation    ReaSE (realistic Internet simulations)   MiXiM (detailed wireless simulations)   Castalia (wireless sensor and body area networks)   More...

New users: Watch the screencast for an introduction into the Simulation IDE, or see in the publications list what OMNeT++ has been used for. Check out some tutorials, browse the documentation, watch introductory videos, and explore the featured network simulation projects (click the logos above)!

OMNeT++ 4.0rc2
Sunday, 01 March 2009 10:55
We are happy to announce the second release candicate of OMNeT++ 4.0. You can find the downloads and the change log in the Download area.
Mobility Framework 2.0p3 for OMNeT++ 4.x on GitHub
Friday, 27 February 2009 18:02
In the last days we have uploaded the OMNeT++ 4 port of the Mobility Framework to, with the project name mf-opp4. You can access the repository at
OppBSD 3.0 Released
Tuesday, 24 February 2009 18:23
OppBSD 3.0 is released now. It provides a fairly complete FreeBSD network stack inside OMNeT++ now with IPv4 and IPv6(!). 64-Bit platforms are also supported. It also provides a pcap interface, i.e., you can dump all packets into a pcap file for later analysis. More info and download
Mobility Framework 2.0p3 for OMNeT++ 4.x
Monday, 22 December 2008 13:29
Jérôme Rousselot has ported the Mobility Framework 2.0p3 to OMNeT++ 4.x. Use this library if you depend on MF 2.0 and want to move your project to OMNeT++ 4.0
xMIPv6: Mobile IPv6 protocols for the INET Framework
Friday, 21 November 2008 09:25

From Zarrar Yousaf and Christian Bauer: We are pleased to announce the official release of the Mobile IPv6 simulation model to the community. The source code and further details can be downloaded from our project pages:,de/, and
Porting of the codebase to OMNeT++ 4.0 is underway, and will be released soon.

New OMNeT++ 4.0 beta
Tuesday, 18 November 2008 08:54
We are happy to announce the beta 8 release of OMNeT++ 4.0. In this release, we made makemake generation a lot more flexible in the IDE, implemented frequently asked features in Tkenv (run until event, log window filtering), and resolved several issues. We also created a Wiki page for OMNeT++ 4.0-related resources. [Download] [Wiki]
oProbe updated to version 2.0
Tuesday, 11 November 2008 23:09

The simulation community has been accused for producing many simulation studies of bad quality. The mission of the oProbe open source project is to provide an instrument that produces statistically sound results at known quality. Stochastic sampling from a network of queues demands both confidence and correlation control. An important design goal is to be compatible with the OMNeT++ framework without introducing changes to this code, as well as making it easy for existing simulators to make use of oProbe. The oProbe project introduces a probe module, which is a new simple module in the context of OMNeT++. A probe is the instrument that applies a controlled stochastic sampling technique. The probe module may have any number of probes. The oProbe project supports different interface levels according to the functionality required. Based on the FIFO queue example included in the sample directory in OMNeT++, the oProbe project provides example code on how the software can be used by existing or upcoming OMNeT++ based simulators.

You can download the manual and the source code here:


PAWiS - a simulation framework for Wireless Sensor Networks
Friday, 05 September 2008 01:00

PAWiS (Power Aware Wireless Sensors) is an OMNeT++-based simulation framework for the optimization of wireless sensor networks (WSN). The simulator has been developed within the PAWiS project at the Institute of Computer Technology, University of Technology, Vienna. WSNs require nodes with exceptionally low power consumption, yet have to drive sensors and radio communication. Common optimization approaches concentrate on modules to make every module as good as possible, but this approach only reveals local optima. In contrast, the PAWiS Framework targets on cross layer and cross module optimization to find global optimum.

For more information and to download the package, visit the PAWiS home page

ReaSE - Realistic Simulation Environments for IP-based Networks
Tuesday, 02 September 2008 03:00

ReaSE is an open-source network simulation framework for OMNeT++. ReaSE is able to create realistic simulation environments with respect to hierarchical network topologies, self-similar background traffic, and attack traffic based on real attack tools.

The ReaSE framework provides a graphical user interface for generation of ned files including a realistic topology and necessary traffic generation entities. In addition, OMNeT++ and the INET framework are extended in a way that hierarchical routing and traffic generation are enabled within a user's simulation model.

ReaSE is developed at the Institute of Telematics, University of Karlsruhe. This tool is actively developed and open to feedback and contributions. If you have any questions regarding ReaSE, feel free to contact the authors.

For more information and to download the package, visit the ReaSE home page.

Call for Papers -- 2nd International Workshop on OMNeT++
Wednesday, 13 August 2008 10:49

The CfP for the 2nd International OMNeT++ Workshop is now online! We are inviting you to Rome, Italy on the 6th of March, 2009, where members of the OMNeT++ community will meet to show off their work, exchange ideas, meet people of similar interests, and plan and coordinate joint efforts.

You can submit full or short papers (up to 8 and 4 pages). All accepted papers will be indexed, and selected papers will be considered for an international journal publication. The workshop will be held in conjunction with SIMUTools 2009.

Paper submission deadline (EXTENDED) is December 1, 2008.

[Call for Papers]

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