P2P VPN

[Matej Kovacic]

Hi,

this might be of interest to you:
https://code.google.com/p/badvpn/

Peer-to-peer VPN

The VPN part of this project implements a Layer 2 (Ethernet) network
between the peers (VPN nodes). The peers connect to a central server
which acts as a chat server for them to establish direct connections
between each other (data connections). These connections are used for
transferring network data (Ethernet frames), and can be secured with a
multitude of mechanisms. Notable features are:

    * UDP and TCP transport
    * Converges very quickly after a new peer joins
    * IGMP snooping to deliver multicasts efficiently (e.g. for IPTV)
    * Double SSL: if SSL is enabled, not only do peers connect to the
server with SSL, but they use an additional layer of SSL when exchanging
messages through the server
    * Features related to the NAT problem:
         1. Can work with multiple layers of NAT (needs configuration)
         2. Local peers inside a NAT can communicate directly
         3. Relaying as a fallback (needs configuration)

More info here:
https://code.google.com/p/badvpn/wiki/badvpn

P. S. It would be nice to see this with easy to use GUI and prepacked
binaries for all "main" systems...

Regards,

M.