Interconnecting Cisco Network Devices, Part 1 (ICND1), Second Edition, is a Cisco-authorized, self-paced learning tool for CCENT and CCNA foundation learning. This book provides you with the knowledge needed to configure Cisco switches and routers to operate in corporate internetworks. By reading this book, you will gain a thorough understanding of concepts and configuration procedures required to build a multiswitch, multirouter, and multigroup internetwork that uses LAN and WAN interfaces for the most commonly used routing and routed protocols. * Understand the principles on which basic networks operate * Explore the operation and configuration of LANs * Extend the boundaries of the network by implementing and securing wireless connectivity * Configure routers to provide connectivity between different networks * Learn about IP addressing number conversion * Establish WAN interconnectivity using point-to-point links, DSL, and cable services * Configure Network Address Translation (NAT) * Use Cisco IOS commands to determine the layout of a Cisco network topology * Manage the router startup and work with IOS configuration files and Cisco IOS images