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Welcome to Virtual Network User-Mode-Linux (VNUML) web server

VNUML (Virtual Network User Mode Linux) is an open-source general purpose virtualization tool designed to quickly define and test complex network simulation scenarios based on the great User Mode Linux (UML) virtualization software. It has been initially developed in the context of Euro6IX research project to simulate IPv6 IX scenarios based on Linux and zebra/quagga routing daemons (see our article on IEEE Comms. Magazine). However, it is a useful tool that can be used to simulate general Linux based network scenarios.

VNUML is aimed to help in testing network applications and services over complex testbeds made of several nodes (even tenths) and networks inside one Linux machine, without involving the investment and management complexity needed to create them using real equipment.

VNUML tool is made of two main componets: the VNUML language used for describing simulations in XML; and the interpreter of the language (vnuml command), that builds and manages the simulation, hidding all UML complex details to the user.

VNUML has been developed by the Telematics Engineering Department (DIT) of the Technical University of Madrid (UPM) in Spain.

This software is released under GNU Public Licence. It has been developed with the partial support from the European Commission under the Euro6IX IST research project.

Since July 2004, part of the VNUML development is host at Visit the VNUML site at SourceForge.



July 21st, 2007 -- New VNUML testing release (1.8.2beta2) and root_fs (0.5.1) solving some bugs.

July 18th, 2007 -- New VNUML testing release: 1.8.2beta1.

July 11th, 2007 -- New root_fs_tutorial 0.5.0 has been released. Install it using the root-fs-installer script!

July 5th, 2007 -- New UML kernel for VNUML has been released: linux- It can also be installed through APT (using the same repository than vnuml package): 'apt-get install linux-um'.

May 25th, 2007 -- New VNUML stable release: 1.8.1-1.

May 21th, 2007 -- New example scenario showing how to create a mixed VNUML Dynamips/Dynagen scenario is available. Besides, a new howto has been written describing how to install Dynamips/Dynagen

May 17th, 2007 -- VNUML Virtual Appliance for VMware has been released. See download page.

All News