GNS3 is a graphical network simulator that allows you to design complex network topologies and to launch simulations on them.
To allow complete simulations, GNS3 is strongly linked with :
- Dynamips, an IOS emulator which allows users to run IOS binary images from Cisco Systems.
- Dynagen, a text-based front-end for Dynamips.
- Pemu, a PIX emulator.
GNS3 is a excellent complementary tool to real labs for administrators of Cisco networks or people wanting to pass their CCNA, CCNP, CCIP or CCIE certifications.
It can also be used to experiment features of Cisco IOS or to check configurations that need to be deployed later on real routers. This project is an open source product that may be used on multiple platforms, including Windows, Linux, and MacOS X.
Features overview
- Designing high quality complex network topologies.
- Emulating Cisco routers and PIX firewalls.
- Simulating simple Ethernet, ATM and Frame Relay switches.
- Load and save in Dynagen’s INI-like format.
- Image export (JPEG, PNG, BMP and XPM).
download latest GNS3 from website:
https://www.gns3.com/software/download
or
Download GNS 3 and Cisco 1700,2600,7200 IOS in one pack:
http://rapidshare.com/files/130264941/GNS3-0.5-win32-all-in-one.rar
RAR Password :sumptuousworld
http://search.4shared.com/q/CCAD/1/gns3
Related post: how to download GNS3, then install and getting its work
SAIFUL AZIZ's BLOG 
hey i am a Information technology student from india.
i am a CCNA .i am interested in networking ,please tell me the things that i should look out for ,the things that i should learn.
secondly,we have ns in our practicals.what is the basic use of this simulator ( ia have used some for CCNA)…howis this different.how powerful is this??
Hello, GNS3 is a network simulator that can run a real CISCO IOS image file, so the difference is that GNS3 is real and it can be connected to real network topologies and to the internet and it has so many great features to discover : here is a list of video tutorial of GNS3 : http://www.megaupload.com/?f=IWU9FFW5 and here is a link where u can download Cisco IOS : http://www.megaupload.com/?f=NAAUJN6G
Assalam o Alaikum..
I am a student of CCNA and I have heard much about this simulator but did not use it. The reason is that i don’t have cisco ios files but as i have found here thats why i will use it Inshallah…
Tanweer
Pakistan
Salaam dear,
hi,
i m looking for iso images but i could not find.
would you please mail me tha file on my account.
ishtiaq@inox.com
you can download from this page
@ramprasad
GNS3 is just a front-end interface for Dynamips. and what is Dynamips?
—
Dynamips is an emulator program that was written by Christophe Fillot to emulate Cisco routers. Dynamips runs on either Linux , Mac OS X and Windows and can emulate the hardware of the Cisco series routing platforms by directly booting an actual Cisco IOS software image into the emulator.It allows users to build complex network topologies to test the functionality of IOS on an desktop PC, without the need of an actual physical Cisco device (Wikipedia.org).
—-
for detail info, go to here:
http://www.ipflow.utc.fr/index.php/Cisco_7200_Simulator/
@Tanweer
you can search another IOS with Google keyword “intitle:index.of ios parent directory bin”.
hi aziz i encountered a problem that i used c2600 ios and used 2621xm routers. i mentioned idle pc value too,.everything went fine. then i opened console and i ws configuring stuffs suddenly its gone i tried openin console it is comin like “connecting to local host” and that window disappearin. not gettin connected again…… plz help me with this…. diniccna@gmail.com
Hi,
I am using GNS3 for my MAC OS X. I could not find the IOS image files. Will the same image files work for MAC ? if not, where can I find them ?
Thanks a lot
Nikhil
Which version of IOS is included in this file and can you tell any website from where i can download switch emulator like GNS3
Hi Aziz,
can you simulate router in linux ? that mean : can we use PC to route packet like cisco router ?
Your posts are very useful.
Thanks
Thanks for your kindness!
thanks for cisco 7200 router ios
i was searching and at last got from here
thanks thanks
hey, can you upload the images into any other free hosting account? i have problems in rapidshare… thanks
Terimakasih banyak bro…
hosting account? i have problems in rapidshare… thanks
Pix Ios And 3640 Ios For Gns And Dynamips:
http://rapidshare.com/files/117335211/pix722.bin –> 7.22 PIX IOS
http://rapidshare.com/files/83403315/c3640-jk9s-mz.123-14.T7.bin –> 3640 ROUTER IOS
http://rapidshare.com/files/83130621/GNS3-0.3.2-win32-all-in-one.exe –>GNS3-0.3.2-win32-all-in-one.exe
do you have the c3600 image ios ? please ..
Excellent — was having trouble with configuring GNS since last couple of days. Turns out that I didn’t have the right images. This works like a charm.
kjk
what r the most good ways to say thank you to anyone who help you?? i don’t know.
so let me say in a common way.
“THANK YOU DUDE”
you really made my day.
God bless you
thanks. i have dowloaded it and want to try it.
thank you, this information is very interesting ..
C7200,C3745,C3725,C3640,C2691,C2600, PIX with serials IOS images for GNS
http://rapidshare.com/files/384955875/WORKING_IOS_GNS.rar
Something happened with rapidshare.com. Could you take somewhere else this file, because I couldn’t dowload it.
Thank you
AM
thank you…..guys this is aswm and work perfect
Hello does anyone know which ios on which platform supports EIRGP ipv6 routing.
Thank you
This guy is a real life saver ..thanks
Can someone help to find out the IOS for the netscreen for GNS 3 ?
Guys can sumbudy tell me the password to extract the .rar file that contains all these ios images
I need also the password to extract the rar.file
Pass:sumptuousworld
i need junos for juniper router in this aplication,can you tell me about link for that? tks
aslkm. mau minta tolong gimana cara download ios imagenya?? saya masih bingung. terimakasih
the password to unzip the rar file is “sumptuousworld”
http://rapidshare.com/files/130264941/GNS3-0.5-win32-all-in-one.rar
i was downlaod this software from this link but this softawre zip file protected by password so send me password.
sumptuousworld is the password
any one help me ios images for switch in gns3
can we use layer three swith ? in GNS 3 cuz only routers are availbe in software if yes so how to get switch in software
thx a lot.finally i found it. i think it’s very useful for me.
Hi Dude,
Many Thanks to you!
good work
thank you
thank for the GNS 3 .Had to wait for 2 days to get it .any 1 has 3700 tooo
Once again thanx to all
thanks a lot guys.
pliz can anyone help me with ios images for gns3.send me the info to email:blessingsanyanga@gmail.com
send me the links where i can get the free ios images
i dont know what to do with gns.can anyone help me with how to use it.also stuck coz dont know where to get ios images for it.iam about to start my ccnp today 2nd april
can anyone kindly attach to my email ,the links to where i can get the ios images.email is:blessingsanyanga@gmail.com
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i waNNA ISO 2600 CISCO ROUTER
FYI, *****You CAN’T emulate Cisco Switches***** in GSN3.
But you can install the nm-16esw in some of the routers slots(Don’t know what that is then look it up). *Note* you won’t get all the functions of say a real c3550. But hay its better then nothing. Also search the torrent sites for the iso’s… there are huge packs with routers, PIX, ASA and IDS… Look people there out there!
This had been the best, BOSON s*cks!!! Availing Software that is useless is kinda shi*ty!
thank your for giving me the IOS images of GNS3
very very thank you aziz
Man!!!! very tks!!!! NICE!!!
Pls., can anyone who have d cisco router ios. Pls attach & sent 2 my email addres. I have d gns3 software 4 windows. But need the ios. Thks
My email is ohireme@live.com
Hi Aziz,
Thank for you very much for this post
hi aziz thank u so much fr this help.. i hv a doubt that shud we mention odle pc value for every router or is it enough to mention it for one router….. plz help…. and can we directly ad this ios image or shud we decrypt it…..
hi aziz i encountered a problem that i used c2600 ios and used 2621xm routers. i mentioned idle pc value too,.everything went fine. then i opened console and i ws configuring stuffs suddenly its gone i tried openin console it is comin like “connecting to local host” and that window disappearin. not gettin connected again…… plz help me with this…. diniccna@gmail.com
here is cisco 3550 switch image for gns try it
http://www.ubuntubuzz.com/2010/07/free-download-cisco-ios-images-for.html
you can find them here
http://www.megaupload.com/?d=NUUAD4QA
Amazing Aziz…thanks a lot for your help. This would really make many Cisco certification aspirants’ life much easier.
good evening for all i’m charles and this is my first time to use gns3 i v passing more dificulties to install gns3 at now i would like to get ios cisco c3640 router . i just look it for more web site but i did’nt find,so i asking at all if someone can send me this ios cisco on my email:charlylandry56@yahoo.fr. tank’s u
i happy
Cisco IOS Images folder http://www.megaupload.com/?f=ORMG9SB1
very2 generous man..
helpfull for newbie like me just starting out cisco ios
matur nuwun mas 🙂
May god bless you sir, thanks a lot 😀
thanks !!!
Visit the following site to download the uncompressed cisco IOS images.
http://www.techfindings.com/where-can-i-download-the-ios-for-gns3-t10.html
thanks for uploading the ios images guys
Visit the following site to download the uncompressed cisco IOS images
http://www.techfindings.com/where-can-i-download-the-ios-for-gns3-t10.html
hw can use switch as a layer3 in GNS!!!!!
Shahbaaz
As Mr. Aziz said, GNS3 is a great front end for Dynamips.
Jeremy Grossmann, Benjamin Marsili, Claire Goudjil and Alexey Eromenko(all french men) are the main brains behind GNS3.
I remember how much I struggled using Boson Cisco CCNA/CCNP software and Cisco Packet Tracer software to learn CCNA topics. But Boson and packet tracer are half baked and you cannot run all the Cisco IOS commands in these software.
You can run Cisco Router IOS on GNS3 to practice CCNA, CCNP and CCIE routing lessons.
Only trouble is GNS3 cannot run Switching part. You still need to depend Cisco Packet Tracer for CCNA CCNP Switching part and real Cisco Switches for CCIE Switching part.
Sad… I wish some how we could run Switching also in GNS3…
You can download GNS3 from below location (GNU GPL license)
http://www.gns3.net/download/
You can download files which you require for GNS3 from below links. You may need to register and sign in.
http://certcollection.org/forum/forum/203-ios-and-related-cisco-files/
http://www.careercert.info/2009/05/new-cisco-ios-version-124-collection.html
Thank you all…
you’re welcome, enjoy!
saalam
I need asa5510 ios and sw2960 and sw3750 cisco ios image for gns3.please help me.
my email:robatsaz@gmail.com
Thank you
Hey guys,how can i run linux ubuntu on a windows machine.please somebody help me and thanks in advance
vizcom13@gmail.com mail me if u need all ios for gns3………. +23345920292 is my number for installation u can call for guidelines for it
can someone help me about the cisco 1721 ios image? where can i download it?
pleasee sir help me!
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Very useful information to work with GNS, Thanks a lot!
Hey there, You have done a fantastic job. I
will definitely digg it and personally recommend to my
friends. I’m sure they’ll be benefied from this website.
IOS pack – Download link not working
try below:
http://search.4shared.com/q/CCAD/1/gns3
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