Chapter 1.  Point-to-Point Networks

In this chapter, we will cover the following:

  • The shortest setup possible
  • OpenVPN secret keys
  • Multiple secret keys
  • Plaintext tunnel
  • Routing
  • Configuration files versus the command line
  • IP-less configurations
  • Complete site-to-site setup
  • Three-way routing
  • Using IPv6

Introduction

The recipes in this chapter will provide an introduction to configuring OpenVPN. They are based on a point-to-point type of network, meaning that only a single client can connect at a given time.

A point-to-point network is very useful when connecting to a small number of sites or clients. It is easier to set up, as no certificates or public key infrastructure (PKI) is required. Also, routing is slightly easier to configure as no client-specific configuration ...

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