Note: Cisco, IOS, and SMARTnet are registered trademarks of Cisco Systems, Inc. This article is not affiliated with or endorsed by Cisco.
Some authorized Cisco resellers may have access to a range of IOS images, including older versions, for customers who need them for specific configurations or upgrades.
Most downloads require an active SMARTnet service contract associated with your account. Software Central: Navigate to the Cisco Software Download Product Selection:
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Cisco IOS is a binary file. Sophisticated attackers can embed malware into modified IOS images. If you flash a compromised image onto your router and connect it to the internet, the router could become part of a botnet or leak your data.
