If you plan to use the GNS3 VM. 2. Offline Installation Process (Windows) Software - GNS3
Login. Download GNS3. Select the installer for your favourite OS. Downloading the GNS3 VM
To successfully install GNS3 offline, you must manually gather the , the GNS3 VM , and all necessary dependencies beforehand. 1. Pre-Download Requirements download gns3 offline
Download from the Official GNS3 Download Page (requires a free account).
Before moving to an offline environment, download these core components from a machine with internet access: If you plan to use the GNS3 VM
The standard installer may try to fetch these online. Manually download the standalone installers for: Npcap: Required for network connectivity on Windows 10/11. Wireshark: Essential for packet capturing. Solar-PuTTY or PuTTY: For console access to devices.
Download the .zip archive matching your hypervisor (VirtualBox, VMware Workstation, or ESXi) from the GNS3 VM Download Page . Download GNS3
Downloading GNS3 for offline use is a common requirement for network engineers working in secure "air-gapped" environments or locations with limited internet access. Because GNS3 relies on several third-party dependencies (like Wireshark and Npcap), a standard installation usually attempts to download these components during the setup process.