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Graphical network simulator that allows simulation of complex networks.

5.0
Based on 1 user rateRead reviews & comments
Free
Absolutely Free

GNS3 overview

GNS3 is a graphical network simulator that allows simulation of complex networks.

To allow complete simulations, GNS3 is strongly linked with:

  • Dynamips, the core program that allows Cisco IOS emulation
  • Dynagen, a text-based front-end for Dynamips
  • Qemu, a generic and open source machine emulator and virtualizer
  • GNS3 is an excellent complementary tool to real labs for network engineers, administrators and people wanting to pass certifications such as CCNA, CCNP, CCIP, CCIE, JNCIA, JNCIS, JNCIE
Features:
  • Design of high quality and complex network topologies
  • Emulation of many Cisco IOS router platforms, IPS, PIX and ASA firewalls, JunOS
  • Simulation of simple Ethernet, ATM and Frame Relay switches
  • Connection of the simulated network to the real world!
  • Packet capture using Wireshark
  • Important notice: users have to provide their own IOS/IPS/PIX/ASA/JunOS to use with GNS3

What’s new in version 2.2.42

Updated on Aug 10 2023

GUI
  • Use the system's certificate store for SSL connections
  • Give a node some time to start before opening the console (for console auto start). Fixes #3474
  • Use Mate Terminal by default if installed on Debian, Ubuntu and Linux Mint.
  • Support for gnome-terminal tabs to be opened in the same window.
  • Remove import urllib3 and let sentry_sdk import and patch it. Fixes #3498
  • Add import sys in sudo.py
  • Rounded Rectangle support
Server
  • Bundle web-ui v2.2.42
  • Handle API version key in VirtualBox 7. Fixes #2266
  • Enable system certificate store for SSL connections
  • Use DEFAULT_BUFFER_SIZE for md5sum
  • Fix version check when installing appliances. Ref #3486
  • Allow connection to ws console over IPv6. Fixes GNS3/gns3-web-ui#1400
  • Remove import urllib3 and let sentry_sdk import and patch it. Fixes #3498
View older GNS3 updates

Information

License

Free

Size

120.3 MB

Developer’s website

https://www.gns3.com

Downloads

14549

App requirements

  • Intel 64
  • macOS 11 or later
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  • User Ratings

robsta
robsta
Aug 27 2021
2.2.24
0.0
Aug 27 2021
0.0
Version: 2.2.24
Version 2.2.24 is Mojave and above...description needs to be updated
Sandro-Bilbeisi
Sandro-Bilbeisi
May 3 2017
5.0
May 3 2017
5.0
Version: null
Free
Absolutely Free
How would you rate GNS3?
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