= Tunneldigger =

Tunneldigger is a simple VPN tunneling solution based on L2TPv3 tunnels supported in recent Linux kernels with features targeted at community networks:
* auto-configuration of layer 2 kernel-based tunnels
  * layer 2 allows both bridging of tunnels or using both IPv4 or IPv6 protocols
  * any new node can automatically connect to the VPN and it just works
* optional bi-directional rate limiting
  * node maintainers can decide how much of bandwidth can tunnel consume at most
* using in-kernel tunnels and not user-space tunnels
  * in-kernel tunnels have significantly higher throughput (factor of 10) especially on small embedded devices because packets can be routed directly in the kernel without having to go to a user-space daemon (like OpenVPN or tinc)

Tunneldigger does '''not''':
 * provide encryption of data send over tunnels
   * use end-to-end encryption or use IPSec
 * provide authentication -- anyone can connect to the broker and establish a tunnel
   * use some other mechanism of media access control

Ports:
 * Tunneldigger uses UDP ports 8942, 53 and 123, they are tried in that order, the first one that works is used

== More ==

 * [report:15 Open tickets]
 * [wlansi:en/blog/2012/10/29/tunneldigger-the-new-vpn-solution/ Blog post explaining in detail ideas behind the Tunneldigger]
 * [github:tunneldigger GitHub repository]
 * [http://tunneldigger.readthedocs.org/ Documentation]