Book excerpt: Your Guide to CCENT and CCNA IOS Commands This book is an ideal supplement to Todd Lammle’s CCENT and CCNA Study Guides, and a great quick reference for any Cisco networking administrator. Covering IOS version 15, each chapter begins with a short introduction, explaining what tasks will be discussed, followed by detailed explanations of and examples of the commands. The book includes an easy-to-navigate table of commands broken into the following topic areas: Internetworking and TCP/IP Cisco command line interface (CLI) and Security Device Manager (SDM) Router Configuration LAN Switch Configuration Advanced IOS and Troubleshooting Access Lists Network Address Translation Wireless Wide Area Networks Security IPv6 Whether you are studying for your CCENT or CCNA certification, or are a seasoned Cisco networking administrator, this IOS Commands Survival Guide is the perfect reference to help you achieve your goals.