Troubleshooting Virtual Private Networks

by Mark Lewis

Master management and troubleshooting techniques for the growing world of virtual private networks (VPNs) Virtual private networks (VPNs) have become an essential element of every service provider and enterprise network, and are growing in scope, demand, and integration into the network. IT professionals tasked with managing VPNs are faced with a broad range of network challenges and problems, to which immediate and permanent resolution must be provided in order to preserve productivity, employee and client satisfaction, and overall network security. Troubleshooting Virtual Private Networks presents a systematic troubleshooting methodology that can be applied to the various VPN solutions. Chapter 1 begins by introducing the methodology and takes the reader through it step-by-step. The following chapters then discuss L2F, L2TP versions 2 and 3, PPTP, MPLS layer-2 (Martini draft) and 3 (RFC 2547bis) VPNs, and IPSec troubleshooting techniques. Chapters begin with a technology overview and configuration section before presenting a step-by-step approach to troubleshooting. Identifying symptoms and determining appropriate solutions are covered in-depth in many chapters, and case studies address unusual or difficult problems. Each chapter ends with hands-on troubleshooting scenarios that allow readers to test their new skills. All examples and scenarios throughout the book feature Cisco Systems equipment. 158705104401212004

Hardcover

First published May 27, 2004