Dynamips offer the two premade emulators and deploy them with the latest images from all vendors as an OVA file. Two are was installed and managed by our CCIE trainers. Cisco ISE Lab, Cisco FirePower, Cisco CSR, Nexus Switches, XRv Routers, and Palo Alto Images for EVE-NG, Check Point, Juniper, Windows, Linux, ESXi, and Major vendors.