VPN

From Consultancy.EdVoncken.NET

Contents 1 IPSec VPN Software 1.1 Cisco VPN Client on Mac OS X 1.2 IPSecuritas 1.3 Shrew Soft VPN Client 2 SSL VPN Software 2.1 OpenVPN Software 2.2 Tunnelblick 2.3 Viscosity 2.4 Adito VPN Server

There are two major kinds of Virtual Private Network technology available under TCP/IP v4:

1. IPSec VPN
2. SSL VPN

You will also find PPTP (Point-to-Point Tunneling Protocol). This protocol has come under criticism for several security weaknesses.

IPSec VPN Software

Cisco VPN Client on Mac OS X

• Cisco VPN Client

I used version 4.9.01 (0100) on Mac OS X 10.5 (Leopard), and it worked most of the time. The Cisco client installation is quite invasive. I am looking for an Open Source Cisco-compatible VPN client that does not require a kext (kernel extension) to be installed...

Note: if you receive an "Error 51: Unable to communicate with the VPN subsystem" (for example, when on a Wireless network), you may have to restart the CiscoVPN subsystem. Open a terminal, and enter the following command:

 sudo SystemStarter restart CiscoVPN

I found this solution on http://www.anders.com/cms/192/CiscoVPN/Error.51:.Unable.to.communicate.with

IPSecuritas

• IPSecuritas - a free IPSec client for Mac OS X

Shrew Soft VPN Client

• Shrew Soft - VPN Client for Windows, Linux and FreeBSD

SSL VPN Software

OpenVPN Software

• [http://www.openvpn.net/index.php/open-source.html OpenVPN

Tunnelblick

• Tunneblick - OpenVPN for Mac OS X

Viscosity

• Viscosity - OpenVPN

Adito VPN Server

• Adito VPN - Web-based SSL VPN server. Adito was originally forked from SSL-Explorer.
  • SSL-Explorer - a fully-featured, web-based SSL VPN server (no longer maintained)