PNETLab : Lab is Simple

PNETLab (Packet Network Emulator Tool Lab) is a platform that allows you to download and share labs with the community. It includes PNETLab Box and PNETLab store

PNETLab Box (with two modes: Offline and Online))is a virtual machine. It is installed on the local machine and the Lab will run on it, so you do not have to worry about the speed of the lab. PNETLab Store is a web platform with hundreds of free Labs in the fields of networking, database, system… All you need to do is get lab and learn (IOS, Docker are included in the lab when you download from PNETLab)