Cisco IOS (software that runs most of Cisco routers and all Cisco network switches) is the routing platform is dominant on the Internet and corporate network. For the security of the network and investigate the attacks, in-depth analysis and diagnostics is very important, but there are no current books include forensic analysis of Cisco network devices in detail. Cisco Router and Switch Forensics is the first book devoted to criminal attack, incident response, data collection, and legal testimony on the market leader in network devices, including routers, switches, and wireless access point. Because criminals targeting the network, and network devices requires a fundamentally different approach from that taken by the traditional forensics. In this case, according to the traditional approach described in books on general forensic computer techniques are not only insufficient, but also basically harmful to the investigation. Jargon buster: A network switch is a small hardware device that connects multiple computers together within one local area network (LAN). * The only book devoted to forensic analysis of the routers and switches, focusing on the operating system that runs most of the devices in corporate networks and the Internet * Outlines the fundamental differences between traditional and forensic forensic router, the difference is important for respondents in an investigation targeting the network activity * Details of where the match in the entire network forensic investigation process, end to end, from the incident response and data collection for the preparation of reports and legal testimony