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Developer(s) n2n team
Initial release March 27, 2008 (2008-03-27)
Development status Discontinued[1]
Written in C
Operating system FreeBSD, Linux, OpenWrt, Mac OS X, Unix, Windows, Android
Type VPN
License GNU General Public License
Website ntop.org/products/n2n

n2n is an open source Layer 2 over Layer 3 VPN application which utilises a peer-to-peer architecture for network membership and routing.

Unlike many other VPN programs, n2n can also connect computers which reside behind NAT routers. These connections are set up with help from a third computer that both computers can reach. This computer, called a supernode, can then route the information between NATed nodes.[2]

It is free software licensed under the terms of the GNU General Public License v3.

Turbo VPN is a custom Windows server/client implementation of n2n.


  1. ^ "Using n2n with Amazon (AWS) EC2". 10 February 2014. Retrieved 2015-11-14. 
  2. ^ http://www.ntop.org/products/n2n/ : "[the supernode] is basically a directory register and a packet router for those nodes that cannot talk directly"

External links[edit]