The Common Open Research Emulator (CORE) is a tool for emulating networks on one or more machines. You can connect these emulated networks to live networks. CORE consists of a GUI for drawing topologies of lightweight virtual machines, and Python modules for scripting network emulation.
CORE has been developed by a Network Technology research group that is part of the Boeing Research and Technology division. The Naval Research Laboratory is supporting further development of this open source project.
- Network lab in a box
- Efficient and scalable
- Easy-to-use GUI canvas
- Centralized configuration and control
- Runs applications and protocols without modifying them
- Real-time connection to live networks
- Distributed with multiple COREs
- Highly customizable
Click on a topic below for a short demonstration. These movies require Flash.
The CORE Manual (PDF, HTML) covers installation, usage, and more. The CORE API Documentation covers the CORE API, which allows other systems to interact with the CORE emulation. This API is also used for communication between the different components of CORE. A CORE Python Manual is also available.
CORE downloads are available at https://downloads.pf.itd.nrl.navy.mil/core/. Download files have been split amongst the following directories:
- packages directory - contains the FreeBSD (tbz) and Linux (rpm) binary packages
- source directory - contains a tarball of the source code
- vmware-image directory - contains VMWare Virtual Machine containing a CORE installation
For more instructions on what to do with the downloaded files, please see the Installation section of the CORE manual.
Comments and Questions
Please direct questions and comments to firstname.lastname@example.org.
There is a supplemental CORE page at https://code.google.com/archive/p/coreemu/.
Academic publications that use CORE are requested to cite the following publication:
Comparison of CORE Network Emulation Platforms, Proceedings of IEEE MILCOM Conference, 2010, pp.864-869.