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Troubleshooting Virtual Private Networks (VPN) Hardcover – June 6, 2004


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Product Details

  • Hardcover: 840 pages
  • Publisher: Cisco Press; 2nd edition (June 6, 2004)
  • Language: English
  • ISBN-10: 1587051044
  • ISBN-13: 978-1587051043
  • Product Dimensions: 9.2 x 7.6 x 1.9 inches
  • Shipping Weight: 3.5 pounds
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (4 customer reviews)
  • Amazon Best Sellers Rank: #2,210,516 in Books (See Top 100 in Books)

Editorial Reviews

About the Author

Mark Lewis, CCIE No. 6280, is technical director of MJL Network Solutions (www.mjlnet.com), a leading provider of internetworking solutions that focuses on helping service provider and enterprise customers to implement cutting edge technologies, deploy security solutions, and optimize their networks, as well as providing them with advanced training. Mark specializes in VPN technologies and has many years of experience designing, implementing, and troubleshooting IP networks. Mark is also a certified Cisco Systems instructor.


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6 of 6 people found the following review helpful By Paul Miller on March 9, 2005
Format: Hardcover
I recently read the book titled "Troubleshooting Virtual Private Networks" by Mark Lewis. ISBN: 1587051044. This title covers Virtual Private Networking of many flavors. The term Virtual Private Network is a term used very loosely in the industry, so it's good to clarify the 'type' of VPN that's covered in this book. The type of VPN's covered in this books are essentially network based VPNs. The reason I mention this is because some folks call a software utility named SSH a form of VPN. Others stretch the term and call the use of HTTP over Secure Socket Layer (SSL) a VPN. To me the network layer VPN is the only true VPN and are the type covered in this title.

The book covers all the major protocols used to accomplish VPNs. From the Cisco proprietary Layer 2 Forwarding protocol to Microsoft's Point-to-Point Tunneling Protocol to the more widely deployed IP Security (IPSEC) Protocol. There is a wealth of information cover Layer 2 Tunneling Protocol (L2TP) and its variation. The authors' goal was to compile as much useful information into one text covering all type of VPN flavors. The author, for the most part, has succeeded in developing a great one-stop reference for Network Layer VPNs.

The author wastes little ink when covering a given protocol. The organizations of the sections are very well laid out. Each section takes you from the fundamentals of the protocol, to configuration and finally troubleshooting the technology. The format makes for an excellent representation of each technology.

There are plenty of protocol diagrams, supporting figures and tables to augment the text.
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8 of 9 people found the following review helpful By A. Sardella on July 4, 2004
Format: Hardcover
Troubleshooting VPNs by Mark Lewis (Cisco Press, 2004) demystifies the major protocols used to create Virtual Private Networks. VPNs use a form of encapsulation called tunneling, or additions to packets or frames to make them distinguishable as part of a unique connection, to transmit different protocols or encrypted data across the wide area network.
The cost savings over dedicated leased line access-extended connectivity with potentially more bandwidth for less money-were compelling from the start, and the standardization process to secure VPNs and make them easier to implement moved quickly. But VPNs also meant that many disparate protocols (PAP/CHAP, LCP/NCP, ATM, IP) with many different functions (authentication, negotiation, and transport) would have to play together in new ways. The inevitable free-for-all that results from these "forced parties" has opened up a world of opportunity for network engineers with troubleshooting skills. That's where this book comes in to help.
The book begins by establishing some basic rules of thumb for VPN troubleshooting. These include bottom up and top down troubleshooting (the "up" and down" parts refer to the OSI stack) and end-to-end analysis of "what might have gone wrong where." Then the book moves on to quickly address older, less secure VPN-creation methods such as Point to Point Tunneling Protocol (PPTP), which is widely used for dial access, and Layer 2 Forwarding (L2F), before continuing on to more common protocols such as such as Layer 2 Tunneling Protocol (L2TP), IP Security (IPSec), Multi Protocol Label Switching (MPLS), and an emerging practice to adapt existing WAN protocols (especially ATM but also PPP and HDLC) to MPLS called Any Transport over MPLS (AToM).
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3 of 4 people found the following review helpful By Midwest Book Review on October 10, 2004
Format: Hardcover
Troubleshooting Virtual Private Networks presents by computer hardware and software expert Mark Lewise is a 1000 page systematic troubleshooting methodology "how to" manual specifically intended for the use of network engineers, administrators, and architects tasked with managing and deploying Cisco IOS VPNs. With eight self-contained chapters organized and designed to facilitate rapid and straightforward troubleshooting, Troubleshooting Virtual Private Networks provides detailed information on addressing all common and not-so-common issues associated with IPSec VPNs, MPLS Layer-3 VPNs, any transport over MPLS (AToM)-based Layer-2 VPNs, L2TP Version 3 (L2TPv3)-based Layer-2 VPNs, L2TP Version 2 (L2TPv2) VPNs, PPTP VPNs, and L2F VPNs. Troubleshooting Virtual Private Networks not only shows the user how to correct problems but also how to avoid them in the first place with expert VPN configuration guidance and optimization tips.
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By Tweety Direct on May 17, 2014
Format: Hardcover Verified Purchase
Good for what I want to get out of this book. I have not read the entire book however it has some details that I need.
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