Network Foundations and Addressing

Updated in May 2025. This course now features Coursera Coach! A smarter way to learn with interactive, real-time conversations that help you test your knowledge, challenge assumptions, and deepen your understanding as you progress through the course. This course provides a robust foundation in networking technologies and IP addressing, covering essential concepts that are critical for any networking professional. It begins by introducing the core components and technologies that underpin modern networks, including routers, switches, security appliances, and wireless access points. You will also delve into different network architectures, learning how various designs such as three-tier, collapsed core, and spine-leaf are implemented in enterprise environments. As the course progresses, you’ll gain an in-depth understanding of IPv4 and IPv6 addressing schemes. You will learn how to configure, assign, and troubleshoot IPv4 addresses, as well as explore binary numbering, subnetting, and address resolution. The transition to IPv6 is covered comprehensively, addressing the need for this new protocol and detailing its format, types, and the practicalities of implementation. Through a series of exercises and real-world scenarios, you will become proficient in both manual and dynamic address assignment. The final section of the course focuses on advanced IP addressing concepts, such as Network Address Translation (NAT), IPv4 and IPv6 traffic flows, and subnetting strategies. You’ll also practice techniques for optimizing and managing network address spaces, preparing you for real-world networking challenges. By the end of this course, you will have the skills needed to design and implement efficient, scalable network infrastructures. This course is ideal for beginners and professionals looking to solidify their understanding of networking fundamentals. No prior experience in networking is required, but a basic familiarity with computers and the internet is helpful. I