Book Image

Openswan: Building and Integrating Virtual Private Networks

By : Ken Bantoft, Paul Wouters
Book Image

Openswan: Building and Integrating Virtual Private Networks

By: Ken Bantoft, Paul Wouters

Overview of this book

<p>With the widespread use of wireless and the integration of VPN capabilities in most modern laptops, PDA's and mobile phones, there is a growing desire for encrypting more and more communications to prevent eavesdropping. Can you trust the coffee shop's wireless network? Is your neighbor watching your wireless? Or are your competitors perhaps engaged in industrial espionage? Do you need to send information back to your office while on the road or on board a ship? Or do you just want to securely access your MP3's at home? IPsec is the industry standard for encrypted communication, and Openswan is the de-facto implementation of IPsec for Linux.</p> <p>Whether you are just connecting your home DSL connection with your laptop when you're on the road to access your files at home, or you are building an industry size, military strength VPN infrastructure for a medium to very large organization, this book will assist you in setting up Openswan to suit those needs.</p> <p>The topics discussed range from designing, to building, to configuring Openswan as the VPN gateway to deploy IPsec using Openswan. It not only for Linux clients, but also the more commonly used Operating Systems such as Microsoft Windows and MacOSX. Furthermore it discusses common interoperability examples for third party vendors, such as Cisco, Checkpoint, Netscreen and other common IPsec vendors.</p> <p>The authors bring you first hand information, as they are the official developers of the Openswan code. They have included the latest developments and upcoming issues. With experience in answering questions on a daily basis on the mailing lists since the creation of Openswan, the authors are by far the most experienced in a wide range of successful and not so successful uses of Openswan by people worldwide.</p>
Table of Contents (22 chapters)
Building and Integrating Virtual Private Networks with Openswan
Credits
About the Authors
Acknowledgements
About the Reviewers
Preface

Microsoft Windows


Even though it has been over ten years since Windows 95 was released, some people still use it, or one of its related successors, Windows 98 and ME. There is no native IPsec client for those platforms, but Microsoft does offer a locked-down version of what used to be the SSH Sentinel IPsec client as a free download for these platforms. This client is often called the MSL2TP client. It is no longer developed and lacks certain modern features, such as NAT-Traversal. We will not give an extensive tutorial on how to use these outdated systems, but if your configuration settings are similar to the modern Windows examples in this chapter, these clients will work to the best extent possible. Of course the standard answer to any Windows 9x problem is to upgrade the OS. There's a similar problem for old NT 3.5 and NT 4 systems, but even less people attempt to run IPsec on such systems. Again, upgrading those systems will save you a lot of time. In the remainder of this chapter,...