4. Access Points

Access Points (Wireless Networking)

Introduction

An Access Point (AP) is a critical network device that enables wireless devices (e.g., smartphones, laptops, IoT devices) to connect to a wired network, typically using Wi-Fi. It acts as a bridge between wireless clients and the wired infrastructure, facilitating seamless communication in wireless local area networks (WLANs). Access points are essential for modern networking, powering wireless connectivity in homes, offices, schools, and public spaces.

This lecture note explores the functions, components, types, and examples of access points, their role in wireless networking, and their integration within the TCP/IP and OSI models. It also covers practical considerations for deployment and configuration.