Learn the concepts, terminology, protocols and services that the Transmission Control Protocol/Internet Protocol (TCP/IP) suite uses to make the Internet work! This book clearly displays and demonstrates TCP/IP capabilities while encouraging readers to interact with the protocols as well as to read and learn about them. It provides both the knowledge and tools would-be network administrators and analysts need to understand what's happening on their networks, and to appreciate that behavior from the perspectives of traffic analysis and characterization, error detection and troubleshooting, security analysis and remedial action, and more.