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Cisco IOS Alternatives

Cisco IOS is described as '(originally Internetwork Operating System) is a family of software used on most Cisco Systems routers and current Cisco network switches. (Earlier switches ran CatOS' and is an app. There are six alternatives to Cisco IOS for a variety of platforms, including Linux, Self-Hosted solutions, VMware Workstation, GNS3 and VMware Player. The best alternative is MikroTik RouterOS. It's not free, so if you're looking for a free alternative, you could try ZEVENET or Quagga. Other great apps like Cisco IOS are VyOS, Junos OS and securityrouter.org.

Cisco IOS alternatives are mainly Firewalls but may also be VPN Services or Operating Systems. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Cisco IOS.
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  • Self-Hosted
  • GNS3
  • Dynamips

Cisco IOS (originally Internetwork Operating System) is a family of software used on most Cisco Systems routers and current...

Learn more about Cisco IOS

  1. MikroTik RouterOS icon

    MikroTik RouterOS

    • Online
    • Self-Hosted

    The main product of MikroTik is a Linux-based operating system known as MikroTik RouterOS.

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  2. VyOS icon

    VyOS

    • Linux

    VyOS is a community fork of Vyatta , a Linux-based network operating system that provides software-based network routing, firewall, and VPN functionality.

    ⚫︎ Command line interfaceVyOS either have CLI support or is a CLI-only app.
    ⚫︎ Built-in VPNVyOS has a built-in VPN feature that enhances your privacy and allows you to browse the web from anywhere.
    ⚫︎ OpenVPNVyOS supports OpenVPN, one of the most secure and reliable VPN protocols.
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  3. ZEVENET icon

    ZEVENET

    • FreeOpen Source
    • Linux

    Our products are based under the unique terms of no limitations and no vendor lock-in technology in order to provide the best performance, high support level directly from the vendor, development agility in order to be integrated with any application or infrastructure and...

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  4. Junos OS icon

    Junos OS

    • VirtualBox
    • Self-Hosted
    • VMware Workstation
    • GNS3
    • VMware Player

    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.

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  5. Quagga

    • FreeOpen Source
    • Linux
    • BSD

    Quagga is a network routing software suite providing implementations of Open Shortest Path First (OSPF), Routing Information Protocol (RIP), Border Gateway Protocol (BGP) and IS-IS for Unix-like platforms, particularly Linux, Solaris, FreeBSD and NetBSD.

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  6. securityrouter.org

    • FreemiumProprietary
    • Self-Hosted

    The securityrouter.org project is a network operating system and software distribution based on OpenBSD, featuring a single, revision-managed, clear-text configuration file with soft re-configuration, editable from CLI and web interface.

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Showing 6 of 6 alternatives