#GNS3 #Graphical #Network #Simulator

Run Cisco, Juniper and open-source virtual networks on your PC! 
Présentation
Howtoforge/gns3
Infos/Ubuntu
paquets debs ou PPA 

sudo add-apt-repository ppa:gns3/ppa

sudo apt-get update

sudo apt-get install gns3 dynamips

Forum/GNS3/Ubuntu
GNS3 tutoriel video

sudo add-apt-repository ppa:gns3/ppa
sudo apt-get update
sudo apt-get install gns3-gui

D.N.S. - aka Debian Network Simulator - is a Virtual Machine prepared to run as a guest in VirtualBox to emulate complex networks. It is based on Debian Jessie and is built around the well known GNS3 Project.
Port mirroring avec un routeur

Sites :
cisco4dummies.blogspot.fr
www.alphorm.com/tutoriel/formation-en-ligne-gns3

GNS3-GUI