Arista Software Portal (free account).
Solution : Verify that the IOL license file ( /root/.iourc ) is present and correctly formatted. Also, double-check that the IOL image file has 777 permissions ( chmod 777 /opt/unetlab/addons/iol/bin/*.bin ).
Another helpful command-line tool is evedl . Designed specifically for the EVE CLI, it can fetch an image from a given URL, saving it directly to the correct location, which eliminates several manual steps.
Delete raw .zip , .tar.gz , or .iso files from your EVE-NG directories once they are extracted and converted. Download All Eve-ng Images
To conserve resources, build core architectures using lightweight IOL or IOSv nodes. Save heavy firewall images exclusively for localized choke points and policy enforcement areas within your virtual topology. To help you get started with a specific setup, tell me:
# For Dynamips (IOS routers) cd /opt/unetlab/addons/dynamips/
To build a fully functional lab, you must acquire and import these images yourself. This comprehensive guide covers the types of images EVE-NG supports, legal sourcing methods, step-by-step import procedures, and how to verify your lab setup. Understanding EVE-NG Image Types Arista Software Portal (free account)
Free lab images available with a registered account.
IOL images require a license file called iourc to function. This file is often included in community repository downloads or can be generated. Place the file in the root user's home directory: cp /path/to/IOURC.txt /root/.iourc You can also find this license file in the same repository where you obtained the IOL image.
The directory is used for legacy Cisco router images, specifically designed to emulate the hardware of older Cisco router platforms like the 7200, 3700, 1700, and 2600 series. These images are standard Cisco IOS .image files that you might also use in GNS3. However, Dynamips is the least preferred method today for several reasons: it's very CPU-intensive, boots slowly, and supports only older versions of IOS, often missing many new features and commands. It is recommended to use an IOL image or a modern QEMU-based router image whenever possible. Another helpful command-line tool is evedl
Create a free guest account on Arista’s website to download vEOS (Virtual Extensible Operating System) ABR images.
Instead of running heavy Windows or Ubuntu Desktop GUI instances for end hosts, use the Docker-based LXC containers or the lightweight VPCS (Virtual PC Simulator) integrated into EVE-NG.