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Gns3 tutorial install12/27/2023 ![]() ![]() The following example will show that GNS3 has started and is working. Simply type gns3server in your home directory to run application. Require hardware acceleration in order to start VMs (all platforms) Enable hardware acceleration (all platforms) Require KVM to be installed in order to start VMs (Linux only, has priority over require_hardware_acceleration) !! Remember to add the gns3 user to the KVM group, otherwise you will not have read / write permissions to /dev/kvm !! (Linux only, has priority over enable_hardware_acceleration) If you turn this off and your licence is invalid IOU will not start and no errors will be shown. Validate if the iourc license file is correct. If not provided, the file is searched in $HOME/.iourc Dynamips executable path, default: search in PATH Enable auxiliary console ports on IOS routers VPCS executable location, default: search in PATH Default is virbr0 on Linux (requires libvirt) and vmnet8 for other platforms (requires VMware) Specify the NAT interface to be used by the NAT node ![]() Do not forget to allow virbr0 in order for the NAT node to work Only allow these interfaces to be used by GNS3, for the Cloud node for example (Linux/OSX only) uBridge executable location, default: search in PATH Last port of the range allocated for inter-device communication. First port of the range allocated for inter-device communication. First VNC console port of the range allocated to devices. Last console port of the range allocated to devices First console port of the range allocated to devices Option to automatically send crash reports to the GNS3 team Path where custom device symbols are stored IP where the server listen for connectionsĬertfile=/home/gns3/.config/GNS3/ssl/server.certĬertkey=/home/gns3/.config/GNS3/ssl/server.keyĪppliances_path = /home/gns3/GNS3/appliances Sudo apt-get install gns3-server gns3-guiĬreate file gns3_nf in directory /root/.config/GNS3/2.2/ This is a quick reference guide on how to install GNS3-Server on Ubuntu 20.04 1. ![]()
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