[ Thanks to Thomas
Chung for this link. ]
“Essentially, there are three ways to implement a VPN:
- “A proprietary solution, using an appliance-like VPN server,
such as Cisco VPN, based on IPSec- “An Open Source implementation of IPSec, such as FreeS/WAN
- “A non-IPSec VPN, like OpenVPN
“The proprietary solutions, such as Cisco, are scalable, you
usually get good support and are pretty well documented…”