If you are interested in computers and hardware or you like to experiment with connections between routers or switches, then you are bound to appreciate the feature set of GNS3, as it enables you to set up topologies of routers (like IOS and JunOS), firewalls (such as (ASA or PIX) and hosts without risking to break down your equipment.
96,036 downloadsUpdated: July 5, 2019Ad-supported / GPLv3
A flexible and highly adaptable network topology simulator application that you can rely on to set up networks without needing any expensive hardware
GNS3 was reviewed by Giorgiana Arghire
3.0/5
What's new in GNS3 2.2.0 Beta 3:
- GUI:
- Fix template migration issues from GUI to controller. Fixes #2803
- %guest-cid% variable implementation for Qemu VMs. Fixes #2804
- Increase timeout from 2 to 5 seconds for synchronous check. Ref #2805
Vocalign kickass. GNS3 supports several types of routers and switches, so it can help you study for certification exams such as Cisco CCNA, CCNP, CCIP, CCSP, CCVP and CCIE, Juniper JNCIA, JNCIS or JNCIE, while being equally useful to network engineers or admins.
Once you install the application, you can start creating your own project from scratch and add the objects you need by dragging and dropping them from the devices panel onto the dedicated area.
Next, you can establish relations between them as you see fit - when you try to create a faulty connection, GNS3 displays a warning message so you can correct your mistake. Due to this, you can rest assured that the topology you come up with can be applied on real devices without any glitches.
You can adjust the attributes of each of your objects to helps them match your exact requirements, and test the configuration every step of the way by running a simulation. You can even customize the display within the main window of GNS3 by hiding layers, interface labels or hostnames.
In a nutshell, if you are studying for a Cisco or Juniper certification exam, or you want to test a certain topology you created, you will surely appreciate the functions of GNS3. And since it is a freeware utility, you can just go ahead and discover its features yourself.
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SYSTEM REQUIREMENTS- Processor: 2 or more Logical cores - AMD-V / RVI Series or Intel VT-X / EPT - virtualization extensions present and enabled in the BIOS. More resources allows for larger simulation
- Memory: 4 GB RAM
- Storage: 1 GB available space (Windows Installation is < 200MB
- More storage is needed for OS and Device Images.
top alternatives FREE
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GNS3 2.1.21 / 2.2.0 Beta 3 / 2.2.2019-07-05 Nightly
add to watchlistsend us an update- portable version
- A portable version of this application is available: GNS3 Portable
- runs on:
- Windows 10 64 bit
Windows 8 64 bit
Windows 7 64 bit - file size:
- 64.9 MB
- filename:
- GNS3-2.1.21-all-in-one.exe
- main category:
- Network Tools
12 screenshots:
- developer:
- visit homepage
Cisco IOS Download for GNS3 – One of the most commonly used programs for preparing for the Cisco exams is GNS3. On the GNS3 emulator program, you must download Cisco IOS images to use network devices such as a Routeror Switch.
Cisco IOS Download for GNS3
The GNS3 program is more specific and professional than the Cisco Packet Tracer program. There is no need to install any Cisco IOS for Cisco Packet Tracer, but it is absolutely necessary to download and install Cisco IOS for GNS3.
You need to use the GNS3 program to use the actual Cisco Router and Switch IOS images. By emulating a Cisco Router with GNS3, you can prepare for Cisco exams in a more professional manner.
When using the GNS3 program, you can download and use the most appropriate Cisco IOS images not to be the problem. You can also check out GNS3 Setup to install the GNS3 program to your computer. To download the Cisco IOS for GNS3, you can reach the related article from the link below.
⇒ GNS3 Supported IOS Images Download
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You can purchase “The Book of GNS3” from Amazon.
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How to Add Cisco IOS for GNS3? ⇒ Video
After downloading Cisco IOS for GNS3, you can watch how to add Cisco IOS to GNS3 and you can also subscribe to our YouTubechannel…
How to Install GNS3 on Windows 10? ⇒ Video
And extra, you can watch GNS3 program installation video on Windows 10 operating system…
Final Word
Cisco IOS Download for GNS3 – You can also download and try various Cisco IOS images on the GNS3 program. There is no restriction for this situation.
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Gns3 Ios Images Free Download
Category |
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Category | Networking Software |
Subcategory | Network Tools |
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General |
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Publisher | GNS3 |
Publisher web site | http://www.gns3.net/ |
Release Date | July 07, 2013 |
Date Added | July 08, 2013 |
Version | 0.8.4 |
Category |
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Category | Networking Software |
Subcategory | Network Tools |
Operating Systems |
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Operating Systems | Windows XP/Vista/7 |
Additional Requirements | None |
Download Information |
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File Size | 59.63MB |
File Name | GNS3-0.8.4-all-in-one.exe |
Popularity |
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Total Downloads | 53,717 |
Downloads Last Week | 25 |
Pricing |
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License Model | Free |
Limitations | Not available |
Price | Free |