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)!

INET-HNRL: Optical, Wireless and Hybrid Networking Extensions for INET
Friday, 17 December 2010 15:24

From Kyeong Soo Kim: This is to announce the INET-HNRL, a new fork of INET Framework developed for hybrid networking research. INET-HNRL provides new models in both the optical and the wireless networking areas and their hybrid. Currently, the following models and research frameworks have been implemented:

  • Models for the hybrid TDM/WDM-PON under the SUCCESS-HPON architecture;
  • Comparative analysis framework based on the equivalent circuit rate (ECR) for the study of next-generation optical access (NGOA) architectures;
  • Wi-Fi localization (currently integrating them into INET, which were formerly implemented based on INETMANET)

The project homepage is at, where you can find a brief overview of each model/framework together with all the relevant publications. The github project URL is

mCoA++: Multiple Care of Address Registration for xMIPv6
Thursday, 16 December 2010 15:58
This post is to announce mCoA++, an extension of the xMIPv6 Mobile IPv6 modeling framework. mCoA++ enables the registration of multiple care of addresses for Mobile IPv6 nodes. The code has been developed by Bruno Sousa and Marco Silva from Laboratory of Communications and Telematics (LCT) of University of Coimbra, in Portugal. Project home page:
Workshop Deadline Extended!
Monday, 15 November 2010 11:39
The deadline for the next OMNeT++ Workshop has been extended -- the new deadline is November 29th, 2010. Please find the updated Call for Papers here.
VoIPTool 2.0 released
Sunday, 07 November 2010 00:00
This is to announce VoIPTool 2.0, a realistic VoIP traffic generation and evaluation tool for the INET Framework and OMNeT++ 4.1. The package is an evolution of VoIPTool 1.x from Mathias Böhge and Martin Renwanz (TKN, TU Berlin): the code has been moved to github (as project inet-framework/voiptool), ported to OMNeT++ 4.x, and its external interface (parameters, etc.) and implementation has been revised. The package provides a VoIP source and a VoIP sink module as UDP apps. The source app transmits the contents of an audio file (mp3, wav, etc.) to the sink app as VoIP traffic, which can save it to an output audio file for later evaluation. Current maintainers are Zoltán Böjthe and Andras Varga. Download.
Announcement: OverSim-20101103 release
Thursday, 04 November 2010 00:00

Ingmar Baumgart has announced OverSim release 20101103. It brings support for the ReaSE Internet topology generator, experimental support for TCP and IPv6 in SimpleUnderlay and InetUnderlay, the N-Tree overlay protocol, recursive routing for Kademlia, and many other changes and improvements (details below). You can download OverSim-20101103 and the patched INET framework INET-OverSim-20101019 from the download area of

B-MAC for MiXiM and OMNeT++ 4 available now
Monday, 25 October 2010 00:00

From Anna Förster: I finally found some time to implement B-MAC for MiXiM and OMNeT++4. Please find the files and the docs here: Please report all possible bugs, troubles, etc. to the mailing list in order to help also others to resolve their problems.

MiXiM 2.0 Released, Contains Support for INET Integration
Wednesday, 20 October 2010 00:00

The MiXiM team has released MiXiM 2.0. The main highlight of this release is MiXiM - INET Framework integration. MiXiM 2.0 contains a "Mixnet" example simulation that demonstrates how one can use MiXiM network interface cards (NICs) together with higher layer protocols (IP, TCP, UDP) of the INET Framework. MiXiM provides the necessary modules to make the two frameworks compatible, as well as documentation and examples how to build simulations using both frameworks. The new release also fixes some bugs and contains small interface changes. An overview of the most important changes is given after the break.

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.

The new MiXiM release can be downloaded from In order to use MiXiM together with INET, an INET version without the wireless-related classes is needed, which can be downloaded from here.

Call for Papers -- 4th International Workshop on OMNeT++
Tuesday, 28 September 2010 13:04

The 4th International OMNeT++ Workshop will be held on March 21, 2011 in Barcelona, Spain. You can submit full papers (up to 8 pages), short papers (up to 4 pages) and code contribution papers NEW! (2 pages) until November 15, 2010. Participate, show your work, meet others who work with OMNeT++, and exchange ideas! All accepted full and short papers will be indexed, and selected papers will be considered for an international journal publication. The workshop will be held in conjunction with SIMUTools 2011. Read the full Call for Papers!

Simple Obstacle Model for INET and MiXiM
Tuesday, 28 September 2010 12:35
From Christoph Sommer: We've now prepared and uploaded the codebase of our "Computationally Inexpensive Empirical Model of IEEE 802.11p Radio Shadowing in Urban Environments" for public consumption. The obstacle model lives at, and can be downloaded for both the INET Framework and for MiXiM. The code is GPL-licensed, so feel free to integrate it with any compatible framework. An in-depth documentation of the model, as well as the results of extensive experiments we performed using IEEE 802.11p radios mounted in cars can be found in the Technical Report of the same name, published at If you have any questions, don't hesitate to get back to me!
Castalia 3.0 released
Thursday, 12 August 2010 00:00

From the Castalia team: Castalia 3.0 is finally here! It runs with OMNeT 4.x and it offers a complete new way to run simulations and view the results. It has a brand new radio module. It implements the Baseline MAC for Body Area Networks, proposed by the IEEE 802.15 Task Group 6. Read the new User's Manual to get started! The new release can be downloaded from the Castalia home page.

Castalia is a simulator for wireless sensor networks (WSNs), body area networks (BANs), and generally networks of low-power embedded devices; it is developed at NICTA Australia.

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