• Cisco IOS is a family of software used on most Cisco Systems routers and current Cisco network switches.
    • Self-Hosted
    • GNS3
    • Dynamips
  • Junos OS is the FreeBSD-based operating system used in Juniper Networks hardware routers. It is an operating system that is used in Juniper's routing, switching and security devices.
    • VirtualBox
    • Self-Hosted
    • VMware Workstation
    • GNS3
    • VMware Player