Below shows you how to install GNS3 onto Ubuntu 8.04. GNS is a Graphical Network Simulator allowing you to build virtual cisco networks.
sudo apt-get -y install dynagen python-qt4
cd ~
wget http://kent.dl.sourceforge.net/sourceforge/gns-3/GNS3-0.6.1-src.tar.gz
tar xvfz GNS3-0.6.1-src.tar.gz && rm GNS3-0.6.1-src.tar.gz
sudo mv GNS3-0.6.1-src /opt/GNS3
cd /opt/GNS3
sudo mkdir Dynamips
sudo mkdir IOS
sudo mkdir Project
sudo mkdir Cache
sudo mkdir tmp
sudo chmod o+rw -R ./Project
sudo chmod o+rw -R ./tmp
cd Dynamips
sudo wget
sudo chmod +x ./dynamips-0.2.8-RC2-x86.bin
One you have successfully completed the above create a desktop icon by right clicking on your desktop and choosing “Create Launcher“. Then add as the command “gksudo python /opt/GNS3/gns3“.
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