Manual Site to Site Tunnels with ClearOS and IPSec
This document is intended to be used as a general layout and design guide for creating manual IPSec VPN tunnels using ClearOS' OpenSwan implementation. The purpose is two-fold: 1) to lay out a framework for an eventual modification to ClearOS' IPSec VPN to support different VPN technology providers who implement the open standards exchange via IPSec, and 2) provide a manual process for implementing secure tunnels via IPSec.
This document is currently under development. Additionally, IPSec tunnels which are NOT dynamic VPN tunnels are currently supported under ClearCare Tier 3 support.
IPSec is a virtual private network (VPN) technology which can be used for site-to-site network tunnels between trusted networks or can be used to connect a single host using x.509 certificate authentication or L2TP. IPSec is about at fast as PPTP but is more effective than PPTP for the following reasons:
IPSec also has advantages and disadvantages when compared to OpenVPN.