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Introduction

NEmu (Network Emulator for Mobile Universes) is a distributed virtual network environment which fully runs without any administrative rights. It manages fleet of QEMU VMs in order to build a dynamic virtual topology. It provides self-script (launcher and interpreter) and a python API to create and manage heterogeneous, dynamic, distributed, collaborative and mobile virtual networks.

Example

Let us consider the following network:

The configuration of this network in NEmu would be:

InitNemu() # Creates a new session

VSwitch('switch', niface=3) # New switch with 3 ports
VSlirp('slirp') # New external connection (Internet)

VHost('a', hds=[VFs('debian.img')], nics=[VNic()]) # New host with 1 NIC
VHost('b', hds=[VFs('windows.img')], nics=[VNic()]) # New host with 1 NIC
VHost('c', hds=[VFs('freebsd.img')], nics=[VNic(), VNic()]) # New host with 2 NICs

Link('a', 'switch:0') # Connects a to switch interface 0
Link('b', 'switch:1') # Connects b to switch interface 1
Link('c:0', 'switch:2') # Connects c to switch interface 2
Link('c:1', 'slirp') # Connects c to the real world

StartNemu() # Starts the virtual network

For Who

NEmu is designed for anybody who wants to run native applications on a customized network without having access to a physical wide distributed infrastructure. NEmu can be useful for many purposes:

• Network application developer
• Cloud application developer (IaaS, PaaS or SaaS)
• Network course in school or university
• User wanting to test applications without impacting their real system
• Live network presentation
• Community volatile network testbed
• Pen-testing environment
• Containers as VM
• and much more!