This shouldn't be done, but sometimes you don't get to choose.
Archive of posts tagged vpn
Poor man’s HTTP VPN
Send IP traffic over HTTP.
OpenVPN’s built-in packet filter
Control client-to-client connections in bridged mode (and more).
Controlling client-to-client connections in OpenVPN
To do that, do NOT use client-to-client in the configuration file!
The strange case of Dr. Multihome and Mr. Nobind
When problems are where you don't expect them
