Learning from the developers of Openswan how to build industry-standard, military grade VPN and connect them with Windows, MacOSX, and other VPN vendors Learn everything you need to know about the Openswan VPN core of developersBuild that the network operates with Windows, MacOS, and other secure your own hotspot vendorsBuild In Detail With the widespread use of wireless and the integration of VPN capabilities in most modern laptops, 's PDA and mobile phones, there is a growing desire for encrypting more and more communications to prevent eavesdropping. IPsec is the industry standard for encrypted communication, and Openswan is the de-facto implementation of IPsec for Linux. Do you just connect the home DSL connection with your laptop when you're on the road to access your files at home, or you're building industry size, military strength VPN infrastructure for media very large organization, this book will help you in setting up Openswan to meet the needs of them. Topics covered ranging from designing, building, to configuring Openswan as the VPN gateway to deploy IPsec using Openswan. Also discusses common interoperability examples for third party vendors, like Cisco, Checkpoint, Netscreen and common IPsec vendors. The authors bring you first hand information, because they are the official developers Openswan code. With experience in answering the questions every day on the mailing lists since the creation of Openswan, the authors are by far the most experienced in a variety of successful and not so successful using Openswan by people around the world. What you will learn from this book? Chapter 1 provides some historical context of IPsec and Openswan, and discusses the legal aspects of using and selling cryptography such as Openswan, and discusses some aspects of heavy encryption privacy and law enforcement. Chapter 2 describes the non-mathematical terms how the IPsec protocol work. Chapter 4 is a step by step tutorial on how to configure the most common type of VPN connection using Openswan. It also discusses the commonly deployed third-party scenarios, including the implementation of Cisco use Aggressive Mode and xauth with Openswan as IPsec clients. Chapter 5 introduces X.509 certificate-based authentication for IPsec. This explains how the X.509 certificate to work, how to produce them for Linux, Windows and MacOSX clients, and how to run their own Certificates of the Agency. Chapter 6 describes Openswan feature called Opportunistic Encryption ("OE"). Using OE, anyone can use IPsec-protected connections to your server without even realizing they are using IPsec. The purpose of the OE is to make IPsec de-facto standard for all communication on the internet. Chapter 7 goes down to the level of the package and discuss common problems you might encounter in your IPsec gateway. This includes special firewall rules, the handling of broken IPsec implementations and MTU various related issues that may arise. two of the most popular end-user MacOSX Systems: Microsoft Windows and Apple Operating from Chapter 8 discusses IPsec. It concludes with an explanation about how to configure commonly used third-party software package to Openswan. Chapter 9 relates to getting Openswan to properly operate with third party IPsec VPN servers such as Cisco, Checkpoint, Netscreen, Watchguard and based on a variety of DSL modem / router equipment commonly used by end-users. Chapter 10 explores how to use IPsec to encrypt all traffic between local machine. It discusses Xelerance IPsec deployment scenarios designed called WaveSEC: implementation used in the IETF, blackhat and DefCon to encrypt their wireless networks. Chapter 11 discusses the use of advanced Openswan. It discusses how to prepare properly fail-over VPN server with Openswan, and discusses congestion distributing companies, large as well as how to handle BGP and OSPF to use IPsec and Openswan. Chapter 12 is the culmination of two years of end-user support on public mailing lists. It also discusses known bugs but there are unresolved at the time this book went to the printer. Who is this book written for? Network administrators and one is interested in building secure VPNs using Openswan.