I also show you how to add Docker containers to your network. Seems like I'm stuck in setting up the lab in GNS3. How do you build Cisco networks in GNS3? In this video I show you how to download Cisco IOS images (Cisco VIRL images) to run IOSv and IOSvL2 in your GNS3 topologies. Go to solution msaikumar87 Beginner Options 12-30-2015 07:02 PM - edited 03-10-2019 12:33 AM Hi, I have confirmed from GNS3 site that it would not support images pertaining to above mentioned router series viz., 3800, 1800, 2900 which I have thought to setup for practicing CCIE Security lab.