nucleus

A simple UDP-based tunnel daemon for point-to-multipoint networks. This allows you to have multiple remote nodes joining a central layer 2 network over UDP. 

nucleus - A simple UDP-based layer-2 tunnel daemon。

nucleus allows you to have multiple remote nodes joining a central layer 2 network over UDP. The purpose of nucleus is to create an easy to use, low overhead tunnel for use with WiFi hotspots - to get the traffic back to a central network over public infrastructure.
nucleus uses the Linux TUNTAP interface to create an endpoint which it can read and write - and then passes the data to/from a server instance. The single nucleus executable can be used in both client and server modes through the use of a config file.

Progress

nucleus is very much in the Alpha stage - it barely works. In time it will improve and become production ready.

Compile

make

Run

nucleus {config file path}

Config File

The config file consists of lines with the option name and value, seperated by whitespace, one per line.
There are few options at this time:

• debug 1 or 0 (default) - 1 shows debug output on the console, 0 prevents it.
• listen {int} - sets the port the UDP socket will listen for incoming packets on. Default is 0 (any port)
• server {ip} {port} - sets the program into client mode, sending all packets to the {ip}:{port} of the server
• intf {intf} - sets the name of the TAP interface to bind to. Default will create a new one for you, lasting the life of the app. Eg, tap0

from https://github.com/richbayliss/nucleus