احراز هویت دسترسی شبکه مبتنی بر پورت 802.1X

Written to appeal to a broad audience, 802.1X Port-Based Authentication seeks to define this complex concept in accessible terms and to explore its various applications to today's computer networks using this particular network protocol. This text assumes that the reader may have little or no prior knowledge and only a general understanding of computer networking, presenting an introductory overview as well as a subject overview in each chapter. It provides an in-depth discussion of technology, design, and implementation with a specific focus on Cisco devices. Including examples derived from the 802.1X implementation, this book also addresses troubleshooting issues in a Cisco environment. Port-based authentication is a "network access control" concept in which a particular device is evaluated before being permitted to communicate with other devices located on the network. "802.1X Port-Based Authentication" examines how this concept can be applied and the effects of its application to the majority of computer networks in existence today. 802.1X is a standard that extends the Extensible Authentication Protocol (EAP) over a Local Area Network (LAN) through a process called Extensible Authentication Protocol Over LANs (EAPOL). The text presents an introductory overview of port-based authentication including a description of 802.1X port-based authentication, a history of the standard and the technical documents published, and details of the connections among the three network components. It focuses on the technical aspect of 802.1X and the related protocols and components involved in implementing it in a network. The book provides an in-depth discussion of technology, design, and implementation with a specific focus on Cisco devices. Including examples derived from the 802.1X implementation, it also addresses troubleshooting issues in a Cisco environment.; Each chapter contains a subject overview. Incorporating theoretical and practical approaches, "802.1X Port-Based Authentication" seeks to define this complex concept in accessible terms. It explores various applications to today's computer networks using this particular network protocol "Port-based authentication is a "network access control" concept in which a particular device is evaluated before it is permitted to communicate with other devices located on the network. 802.1X Port-Based Authentication examines how this concept can be applied and the effects of its application to the majority of computer networks in existence today. 802.1X is a standard that extends the Extensible Authentication Protocol (EAP) over a local area network (LAN) through a process called Extensible Authentication Protocol Over LANs (EAPOL)."--Jacket DEDICATION......Page 6 PREFACE......Page 8 THE AUTHOR......Page 12 CONTENTS......Page 14 CHAPTER 1. OVERVIEW......Page 16 CHAPTER 2. TECHNICAL DISCUSSION......Page 54 CHAPTER 3. DESIGN, IMPLEMENTATION, AND TROUBLESHOOTING......Page 134 Index......Page 246 Back cover......Page 254