Gns3 Supported Routers IOS list Devices can be used on GNS - W7cloud
How to Configure Router & Switch Ios - UniNets Blog
Smarts NCM: Why is a Cisco switch or router discovered under the wrong device class? How to troubleshoot a cisco router being discovered as a switch or visa versa. (335566) | VMware KB
Cisco IOS Order of Operation — EtherealMind
Upgrading Cisco Router IOS
Cisco IOS Inline Intrusion Prevention System Data Sheet - Cisco
The Cisco IOS | CCNA Routing and Switching 200-125 Certification Guide
Cisco Router and IOS How To's Archives - CellStream, Inc.