IPSec VPN Design

Author: Vijay Bollapragada
Publisher:
Publish Date: 2006-05-01
Features: IPSec is one of the popular VPN technologies. There are many books on the technical details of the IPSec protocol and product-level configurations, but none discuss the overall design aspects of IPSec VPN. This book aims to fill this gap, helping readers deploy efficient and secure IPSec VPN solutions in various environments. It provides a detailed discussion of IPSec VPN design, making it a pioneering work in this field. The book is divided into three parts, guiding readers to gain an in-depth understanding of the design and architecture of large-scale IPSec VPN solutions. Part I comprehensively introduces the IPSec architecture, including the IPSec protocol and Cisco IOS IPSec implementation details. Part II discusses IPSec VPN design principles, including star (hub-and-spoke) and full-mesh topologies and fault-tolerant design; it also introduces dynamic configuration models for simplifying IPSec VPN configurations. Part III discusses design issues related to supporting applications such as voice and multicast in IPSec VPNs, exploring how to efficiently integrate IPSec VPN and MPLS VPN. This book is suitable for network engineers involved in the design, deployment, and troubleshooting of IPSec VPNs. One of the many functions provided by network technology is to enable organizations to communicate easily and securely with branch offices, mobile users, remote workers, and business partners. This connectivity is crucial for ensuring a company's competitive productivity. Although there are various technologies for interconnecting enterprise sites, Internet-based Virtual Private Networks (VPNs) are the most effective way for remote employees, branches, and mobile personnel to connect to corporate network resources. VPNs enhance productivity, allow remote users to access network resources efficiently and conveniently, provide site-to-site connectivity and security, and save significant costs. This book provides a detailed discussion of the design of the IPSec protocol for secure communication, making it a pioneering work in this field. The book is divided into three parts, guiding readers to gain an in-depth understanding of the design and architecture of large-scale VPN solutions. Part I comprehensively introduces the IPSec architecture, including its protocols and Cisco IOS IPSec implementation details. Part II discusses IPSec VPN design principles, including star, full-mesh, and fault-tolerant designs; it also introduces dynamic configuration models for simplifying IPSec VPN design. Part III discusses design issues related to supporting applications such as voice and multicast in IPSec VPNs, and also introduces how to efficiently integrate IPSec VPN and MPLS VPN. This book provides proven design and configuration recommendations to help readers deploy efficient and secure VPN solutions in any environment. Vijay Bollapragada (CCIE No. 1606) is the manager of the Network Systems Integration and Testing team at Cisco Systems, where he is involved in the architecture design and validation of complex network solutions. He is an expert in router architecture and IP routing, and co-authored the book "Inside Cisco IOS Software Architecture" published by Cisco Press. He is also an associate professor in the Department of Electrical and Computer Engineering at Duke University. Mohamed Khalid (CCIE No. 2435) is the technical lead for IP VPN solutions at Cisco Systems. He works with numerous service providers and their Cisco Account teams to determine the technical and engineering requirements for various IP VPN architectures. Scott Wainner is an outstanding systems engineer in the U.S. Service Provider Sales Organization at Cisco Systems, primarily focused on the development of VPN architecture and solutions. In this role, he interacts directly with customers as a consultant, providing guidance on IP VPN architecture and explaining customer needs, while driving internal development at Cisco Systems. Scott has 18 years of experience in the networking industry, working in various roles, including network operations, network installation/supply, management, and product design. Recently, his main focus has been on