This two-part book puts the spotlight on how a TCP/IP stack works using Micri m's uC/TCP-IP as a reference. Part I includes an overview of the basics of the Internet Protocol and walks through various aspects of uC/TCP-IP implementation and usage. Part II provides examples for the reader, using the Renesas YRDKRX62N Evaluation Board. The board features the Renesas RX62N, a high-performance 32-bit Flash MCU with FPU and DSP capability, and rich connectivity including Ethernet. Together with the Renesas e2Studio, the evaluation board provides everything necessary to get you up and running quickly, as well as a fun and educational experience, resulting in a high-level of proficiency in a short time. This book is written for serious embedded systems programmers, consultants, hobbyists, and students interested in understanding the inner workings of a TCP/IP stack. uC/TCP-IP is not just a great learning platform, but also a full commercial-grade software package, ready to be part of a wide range of products. The topics covered in this book include: Ethernet technology and device drivers IP connectivity Client and Server architecture Socket programming UDP performance TCP performance System network performance"