Ubuntu安装gns3

Install GPL Key

$ wget  -O - | sudo apt-key add -

Update your sources.list for Ubuntu

Append the following lines to your /etc/apt/sources.list:

# gpl.code.de deb gutsy/ deb-src gutsy/

Then renew apt database:

# sudo apt-get update

Install Gns3

# sudo apt-get install gns3