GNS3 Notes

Installation on Ubuntu 22.04

To install GNS3 on Ubuntu 22.04, first disable IPV6 using the following commands:

sudo sysctl -w net.ipv6.conf.all.disable_ipv6=1
sudo sysctl -w net.ipv6.conf.default.disable_ipv6=1
sudo sysctl -w net.ipv6.conf.lo.disable_ipv6=1

This will enable you to add the required apt repository by running the command:

sudo add-apt-repository ppa:gns3/ppa

Next, update and upgrade your system using:

sudo apt update && sudo apt upgrade

Now, install the GNS3 server and GUI packages:

sudo apt install gns3-server gns3-gui

To run these without super-user privileges you need to add your user to a number of new groups. Run the following commands:

sudo usermod -aG libvirt $USER
sudo usermod -aG kvm $USER
sudo usermod -aG wireshark $USER
sudo usermod -aG ubridge $USER

Finally, reboot your PC.