Cisco Operating Systems: Cisco IOS 1800 Series: Cisco IOS technologies include innovative capabilities designed to amplify and extend network functions. Their IOS software is the most widely leveraged network infrastructure software in the world. The IOS software below is compatible with Cisco 1800 Series routers. Cisco IOS 2600 Series: Cisco IOS technologies include innovative capabilities designed to amplify and extend network functions. Their IOS software is the most widely leveraged network infrastructure software in the world. The IOS software below is compatible with Cisco 2600 Series routers.
