Rating: 
Summary: Informative and Useful
Review: This book is a description of IPSEC as opposed to any vendor's specific implementation. As such it is a good grounding on the subject. Some sections are heavy going, with detailed explanations of IPSEC protocol without effective examples, the information is still useful however. An understanding of cryptography is useful in following the book, whilst an introduction is provided it is very basic. Appropriate references are given for further information and related standards, overall a good read.
Rating:
Summary: Alan Kavanagh
Review: This book is a good recap on IPSec if you have not been working with IPSec for some time. I recommend this book for begineers to IPSec implementators and it is a good reference book to have handy. The first few sections explain the basics of IPSec and are very well detailed without getting into the specifics. However, the sections on IKE are not well explained and it lacks real detail of IKE implementations and no good diagrams.I found this book an excellent recap of IPSec as i have not worked with IPSec for almost 3 years, and instead the book gives good and concise information but is mostly in a synopsis format and lacks the real meat.
Rating: 
Summary: BS
Review: This book is a hardbound POC. The authors don't know the hell they are talking about. All the high level talks are good for nothing.
Rating:
Summary: Very easy, fun and useful!
Review: This book is not very hard. About IPSec, Internet Key Change and implementing. MCSE gettabeam's recommended it!
Rating: 
Summary: IPSec implementation
Review: This book was short but had very detailed information on the new emerging IPSec protocol. I am an IP Security Engineer for Nortel Networks and have found that this book as some very useful information when it comes to troubleshooting IPSec in a VPN solution. I would recommend this book to anyone who needs to have an understanding of the IPSec architecture or even if you are just getting into security.
Rating: 
Summary: Good, Concise & Specific for IPSec
Review: This is not a thick book, just about two hundred not including the index. It's targeted at IPSec including architecture, Authentication Header (AH), Encapsulating Security Payload (ESP), Internet Key Exchange (IKE). I read the book page by page but got stuck in IKE. Maybe more explanation & examples can help readers to fully understand the mechanism of IKE. After I finished the book, I got the feeling that I need another IPSec book to clear up my confusion..... BTW, this is my first book on IPSec!!
Rating:
Summary: Good, Concise & Specific for IPSec
Review: This is not a thick book, just about two hundred not including the index. It's targeted at IPSec including architecture, Authentication Header (AH), Encapsulating Security Payload (ESP), Internet Key Exchange (IKE). I read the book page by page but got stuck in IKE. Maybe more explanation & examples can help readers to fully understand the mechanism of IKE. After I finished the book, I got the feeling that I need another IPSec book to clear up my confusion..... BTW, this is my first book on IPSec!!
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