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https://github.com/talkiq/pystun3

A Python STUN client for getting NAT type and external IP
https://github.com/talkiq/pystun3

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A Python STUN client for getting NAT type and external IP

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PyStun3
=======
A Python STUN client for getting NAT type and external IP. Supports Python
versions 2 and 3.

This project has been forked several times:

- `original project by gaohawk`_
- `taken over by jtriley`_
- `forked and patched to support py3 by zoumi`_
- and, finally, forked by `TalkIQ`_

PyStun follows `RFC 3489`_. A server following STUN-bis hasn't been found on
internet so RFC3489 is the only implementation.

Installation
------------
To install the latest version::

$ pip install pystun3

or download/clone the source and install manually using::

$ cd /path/to/pystun3/src
$ python setup.py install

If you're hacking on ``pystun3`` you should use the 'develop' command instead::

$ python setup.py develop

This will make a link to the sources inside your site-packages directory so
that any changes are immediately available for testing.

Usage
-----
From command line::

$ pystun3
NAT Type: Full Cone
External IP:
External Port: 54320

Pass --help for more options::

% pystun3 --help
usage: pystun3 [-h] [-d] [-H STUN_HOST] [-P STUN_PORT] [-i SOURCE_IP]
[-p SOURCE_PORT] [--version]

optional arguments:
-h, --help show this help message and exit
-d, --debug Enable debug logging (default: False)
-H STUN_HOST, --host STUN_HOST
STUN host to use (default: None)
-P STUN_PORT, --host-port STUN_PORT
STUN host port to use (default: 3478)
-i SOURCE_IP, --interface SOURCE_IP
network interface for client (default: 0.0.0.0)
-p SOURCE_PORT, --port SOURCE_PORT
port to listen on for client (default: 54320)
--version show program's version number and exit

From Python::

import stun
nat_type, external_ip, external_port = stun.get_ip_info()

This will rotate through an internal list of STUN servers until a response is
found. If no response is found you will get ``"Blocked"`` as the ``nat_type``
and ``None`` for ``external_ip`` and ``external_port``.

If you prefer to use a specific STUN server::

nat_type, external_ip, external_port = stun.get_ip_info(stun_host='stun.ekiga.net')

If you prefer to use a specific STUN server port::

nat_type, external_ip, external_port = stun.get_ip_info(stun_port=3478)

You may also specify the client interface and port that is used although this
is not needed::

sip = "0.0.0.0" # interface to listen on (all)
port = 54320 # port to listen on
nat_type, external_ip, external_port = stun.get_ip_info(sip, port)

Read the code for more details...

LICENSE
-------
MIT

.. _forked and patched to support py3 by zoumi: https://github.com/zoumi/pystun
.. _original project by gaohawk: http://code.google.com/p/pystun/
.. _RFC 3489: http://www.ietf.org/rfc/rfc3489.txt
.. _taken over by jtriley: https://github.com/jtriley/pystun
.. _TalkIQ: https://github.com/talkiq