How to Deploy N2N VPN

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

Some details can be found in https://www.ntop.org/products/n2n/.

N2N communication method

  1. Edge node <-> Super node <-> Edge node
  2. Edge node <-> Other edge nodes <-> Edge node
  3. Edge node <-> Edge node

Method 3 is a direct connection, and data will not pass the super node. This is the most ideal way.

Deploy Super Node in your VPS (Ubuntu 16.04)

Compile your N2N:

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git clone https://github.com/meyerd/n2n.git
cd n2n/n2n_v2
cmake ./
make && make install

Start your super node, listen port is set as 6666:

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supernode -l 6666

Configure Your Windows Client

Download a client from https://file.bugxia.com/s/b6MAp6LS78b6XBp.

Install TAP Adapter

Configure Client


服务器地址: Server IP
端口： Port
本机IP：Local IP
组名称：Group
组密码：Password

Configure Your MAC Client

Compile your N2N:

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git clone https://github.com/meyerd/n2n.git
cd n2n/n2n_v2

Modify n2n/n2n_v2/CMakeLists.txt.
CMAKE_C_FLAGS and CMAKE_CXX_FLAGS append -I/usr/local/opt/openssl/include -L/usr/local/opt/openssl/lib

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mkdir build
cd build
make
sudo make install

modify your ~/.bash_profile and append a new line: export PATH=$PATH:/usr/local/sbin/

Using n2n on MacOS

In order to use n2n on MacOS you need to first install support for the tap interface.
if you are a brew (https://brew.sh) user you can do it in a couple of steps

  • brew tap homebrew/cask
  • brew cask install tuntap

Note that in the latest OS versions (for instance MacOS High Sierra), you may need to
need to enable their kernel extension in

System Preferences → Security & Privacy → General

Start Your Client

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sudo edge -d n2n0 -c kaylor k 123456 -l your_server_ip:6666 -a 192.168.100.200 -b -r
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