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GNS3/gns3-gui · source

Snapshot 0 · 2026-11-04T12:47:22Z · Python · GPL-3.0

GitHub description at capture

GNS3 Graphical Network Simulator

README at capture

GNS3-gui
========

[![image](https://github.com/GNS3/gns3-gui/workflows/testing/badge.svg)](https://github.com/GNS3/gns3-gui/actions?query=workflow%3Atesting)

[![image](https://img.shields.io/pypi/v/gns3-gui.svg)](https://pypi.python.org/pypi/gns3-gui)

[![image](https://snyk.io/test/github/GNS3/gns3-gui/badge.svg)](https://snyk.io/test/github/GNS3/gns3-gui)

GNS3 GUI repository.

Installation
------------

Please see <https://docs.gns3.com/>

Software dependencies
---------------------

PyQt6 which is either part of the Linux distribution or installable from
PyPi. The other Python dependencies are automatically installed during
the GNS3 GUI installation and are listed
[here](https://github.com/GNS3/gns3-gui/blob/master/requirements.txt)

For connecting to nodes using Telnet, a Telnet client is required. On
Linux that's a terminal emulator like xterm, gnome-terminal, konsole
plus the telnet program. For connecting to nodes with a GUI, a VNC
client is required, optionally a SPICE client can be used for Qemu
nodes.

For using packet captures within GNS3, Wireshark should be installed.
It's recommended, but if you don't need that functionality you can go
without it.

Development
-----------

If you want to update the interface, modify the .ui files using QT
tools. And:

``` {.bash}
cd scripts
python build_pyqt.py
```

### Debug

If you want to see the full logs in the internal shell you can type:

``` {.bash}
debug 2
```

Or start the app with --debug flag.

Due to the fact PyQT intercept you can use a web debugger for inspecting
stuff: <https://github.com/Kozea/wdb>

Security issues
---------------

Please contact us at <security@gns3.net>