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Routers are the glue that connects the pieces of your network. Even in the simplest networks, this isn't a simple task. Routers have evolved into highly special

Learn how to secure your network with the official MCNS Coursebook

Learn how to manage and deploy the latest IP services in Cisco-centric networks. Understand VPN security concepts: confidentiality, integrity, origin authentica

Cisco routers and switches are the cornerstones of many networks. But when things break, repairs can intimidate even the most competent administrator. Luckily,