Choosing a VPN protocol

What factors should you consider when choosing a VPN protocol? This will depend on your circumstances, but some of the likely factors will include:

  • Interoperability with other firewalls and routers
  • The type of authentication used
  • Ease of configuration
  • The number of WAN-type interfaces
  • The operating systems supported
  • The complexity of your networks
  • Security needs

Although you might set up VPN tunnels between two pfSense systems when working through the examples in this book, in real-world scenarios, it is very likely that you will be connecting to other firewalls or routers, and therefore, interoperability will become a factor. If this is the case, then IPsec is probably the best choice, since it is included with ...

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