Virtual Private Networking

This book provides network managers, LAN administrators and small business operators with all they need to know to "e;interconnect"e; multiple locations or travelling employees that need to access a single location. The operation and utilization of virtual private networks is discussed both in theory and practicality, covering the technical aspects associated with encryption and digital certificates as well as the manner by which readers can create VPNs using readily available products from Microsoft, Cisco, Checkpoint and possibly other vendors. The author was among the first to write about the concept of virtual private networking in a series of articles published over five years ago, and in the intervening years this has become a very hot topic - with the technology being increasing deployed by companies. Virtual Private Networking, by Gilbert Held, covers the technology and the theory, but also shows readers, through numerous examples, 'how to use ' the technology.

This book provides network managers, LAN administrators and smallbusiness operators with all they need to know to "interconnect"multiple locations or travelling employees that need to access asingle location. The operation and utilization of virtual privatenetworks is discussed both in theory and practicality, covering thetechnical aspects associated with encryption and digitalcertificates as well as the manner by which readers can create VPNsusing readily available products from Microsoft, Cisco, Checkpointand possibly other vendors.The author was among the first to write about the concept ofvirtual private networking in a series of articles published overfive years ago, and in the intervening years this has become a veryhot topic - with the technology being increasing deployed bycompanies.Virtual Private Networking, by Gilbert Held, covers the technologyand the theory, but also shows readers, through numerous examples'how to use ' the technology.

Preface.Acknowledgements.Chapter 1 Introduction to Virtual Private Networking.1.1 THE VPN CONCEPT.1.2 BOOK PREVIEW.Chapter 2 Understanding Authentication and Encryption.2.1 AUTHENTICATION.2.2 ENCRYPTION.Chapter 3 Understanding the TCP/IP Protocol Suite.3.1 FRAME FORMATION.3.2 THE NETWORK LAYER.3.3 THE TRANSPORT LAYER.3.4 PROXY SERVICES AND NETWORK ADDRESS TRANSLATION.Chapter 4 Layer 2 Operations.4.1 THE POINT-TO-POINT PROTOCOL.4.2 POINT-TO-POINT TUNNELING PROTOCOL.4.3 LAYER 2 FORWARDING.4.4 LAYER 2 TUNNELING PROTOCOL.Chapter 5 Higher Layer VPNs.5.1 UNDERSTANDING IPSEC.5.2 WORKING WITH IPSEC.5.3 SSL AND TLS.Chapter 6 VPN Hardware and Software.6.1 USING THE ASANTE VPN SECURITY ROUTER.6.2 WINDOWS VPN SOFTWARE.6.3 WORKING WITHWINDOWS 2000 SERVER.Chapter 7 Service Provider-Based VPNs.7.1 RATIONALE FOR USE.7.2 TRANSPORT FACILITIES AND VPN OPERATION.7.3 SERVICE LEVEL AGREEMENTS.7.4 VPN SERVICE PROVIDER OVERVIEW.Appendix A VPN Checklist.Index.