Home > Free Router Simulator Softwares

Free Router Simulator Softwares

December 2nd, 2010 Go to comments

If you are going to take a networking exam like CCNA, CCNP… it is better to practice with real routers. But when the budget is not big enough or you can only access to hardware in your school then router simulator softwares are the best things you can get for free. The followings are a number of free and popular router simulators you can download and practice with:

GNS3 – GNS3 is a graphical network simulator that allows simulation of complex networks. It is an excellent complementary tool to real labs for Cisco network engineers, administrators and people wanting to pass certifications such as CCNA, CCNP, CCIP or CCIE. This project is an open source, free program that may be used on multiple operating systems, including Windows, Linux, and MacOS X.

Screen shots:



Packet Tracer – Packet Tracer 5.0 is the latest version of Cisco Networking Academy’s comprehensive networking technology teaching and learning software. Innovative features of Packet Tracer 5.0, including powerful simulation, visualization, authoring, assessment, and collaboration capabilities, will help students and teachers collaborate, solve problems, and learn concepts in an engaging and dynamic social environment. Moreover, it’s totally free! You can download this software but you need to register first or you can find a mirror download with google (with keyword “download packet tracer”)

Screen shots:




SemSim – The free trial version (2.3MB) offers some CCNA exam router simulation labs & 20 flash cards

Screen shots:



Boson NetSim – Boson offers three certification-focused products, NetSim for CCENT 7.0, NetSim for CCNA 7.0 and NetSim for CCNP 7.0. The NetSim for CCNA 7.0 product contains CCNA-specific lab exercises that cover the skill set you will need to prepare for your CCNA exam. The demo version (21.58MB) is a good choice to get started.

Screen shots:




CertExams offers advanced network simulators including router / switch / terminal simulator. The simulators help in preparing for networking exams such as ccna or jncia. It would also be very helpful for those who want to get started with configuring Cisco or Juniper routers in a simulated environment. The demo version (6.95MB) is limited to:

– Six lab exercises

– Router simulator is limited to User EXEC, Previleged EXEC, and Global Configuration mode commands.





RouterSim’s CCNA Network Visualizer – You can design, build and configure your own network. The demo version is 44.49MB. It is ideal for:

– Anyone studying for the Cisco® CCNA™ 640-802 exam

– Deployment over a LAN network

– Distance education and deployment on a Citrix server or Microsoft Terminal Services

– Corporate trainers and employees

– Students at colleges, universities, and technical institutes

Screen shots:



Comments (50) Comments
Comment pages
1 2 3 6 251
  1. kirankumar
    December 31st, 2010

    very useful information…….

  2. Rich22
    January 10th, 2011

    How do i access these SIM questions? Help!!!!!

  3. boominathan
    January 16th, 2011

    is it possible to send packet tracer sw to my mail id

  4. Nilesh Sharma
    February 4th, 2011

    Can u mail me from where i can get free IOS Image for GNS3.
    Please mail me

  5. Bharat
    February 17th, 2011

    Thank you 9tut
    I am bharat, and about to take the exam of CCNA 640-802 i have read all you question
    will i pass or not…..

  6. cornell
    February 19th, 2011

    i have gone thru all the possible packet tracer and still have not fine the one containing the sims, i would like to know more and how can i download the tracer with the lab simulator. there is this issue of external ping, i would like to know if this is the normal ping dat use the icmp echo reply messages or is there another type of ping.

  7. Vash
    March 15th, 2011

    Labz for Cisco Packet Tracer here:

    Are these the most up-to-date LABZ???

    thanks TEAM!

  8. Adam
    April 8th, 2011

    In order for you to be able to download packet tracer 5.3 you need to be already a student or affiliated w/ an organization that is approved/sanctioned by Cisco Learning Academy (in which you get a username and password) Otherwise, downloading this useful lab is not possible.

  9. calipso
    May 27th, 2011

    hi, how can i get the Cisco IOS for the gns3 to work? Thanks!

  10. Pathy_studying_CCENT
    June 13th, 2011

    Hi there, I am preparing for my CCENT through the Cisco Academy, but I want to practice some labs with GNS3, how ever, lile Calipso, I dont have the IOS, anybody can help us??

    Thanks in advance


  11. Cletus Ani
    June 14th, 2011

    thanks 9tut. you guys are doing a great job. can you mail me where to get an IOS image for GNS3. cletworld@yahoo.com

  12. robinhood38
    June 18th, 2011

    found Packet Tracer 5.2 here:

  13. AD
    June 24th, 2011

    Thanks 9tut for your help. Ive cleared my CCNA , can u suggest me how to prepare for CCNP now. I mean from which exam to start n books / study material………thnx

  14. jagan
    July 8th, 2011

    In packet tracer which router model, we should use for rip,static routing,ospf,eigrp,ipv6,nat

  15. eraj
    July 8th, 2011

    usefull information about net sims

  16. Amit Kumar Pandey
    July 24th, 2011

    Ohhh Really that is so good,but whats about IOS IMAGES

  17. Bob
    August 3rd, 2011

    This site has an online router simulator too, some labs require registration.
    There are free flash cards and practice tests too.

  18. Varun
    August 4th, 2011

    Thnks BOB……really the site is good who is preparing for ccent and ccna exams

  19. jagan
    August 4th, 2011

    which simulator is best for ccna exam practice

  20. Tom
    August 29th, 2011

    I just passed the CCNA the other day, thanks to the help of 9TUT and “ACME” also known as Visual Cert Mgr. One item I wasn’t sure about. On one of those very difficult Cluster Questions, I was supposed to assign the switch the last usable ip address in the same subnet as …. I wasn’t sure how to give a switch an ip address. I simply did this: Switch3# hostname 192.168.149. 90 It caused the router prompt to change from Switch3# to I spend about 15 minutes on these 4 questions, and about 8 minutes on the other very difficult cluster question (where I’m supposed to log in to just one device, and find out thinks like encapsulation types,etc.) Because of this, I didn’t have time to answer the last 3 questions. I still earned a 83.2% enough to pass. My advice, know the matching terms with lightning speed; know the matching terms just like you learned fractions in the 3rd grade with flash cards. c’mon, faster, faster ! faster is better ! Also, it’s good to be able to immediately be able to recognize network diagrams or router output immediately with the same old (over and over again) issues like discontiguous networks, mismatch VTP passwords, etc.

  21. buy seroquel
    September 5th, 2011

    Thanks for tris interesting information! I found it very useful =)

  22. Sysco
    September 10th, 2011

    Hi all,

    Pls. I need to download Packet tracer, I search half a day to find a genuine site non available. Apprecaite if anyone can send me the information to sysco48@yahoo.com

  23. xallax
    September 10th, 2011

    check email

  24. ALL Cisco IOS
    September 10th, 2011
  25. sandip
    October 5th, 2011

    i need to freey packet tracer softweres download . i was laring in new student in network engg please Apprecaite if anyone can send me the information to sandip.sabale@yahoo.com

  26. Mao2011
    October 6th, 2011

    hi i need the latest dumps for ccna certification please help me out.um taking my exams next week send them to maatla20@yahoo.com appreciate if anyone can help thx……..

  27. proland23
    October 27th, 2011

    Thanks for everything 9tut. Passed my CCNA Voice 10.16.2011. Can anyone send me to a link that I can get cisco IOS.

  28. proland23
    October 27th, 2011
  29. xallax
    October 27th, 2011

    please read a bit here:

  30. rock
    November 1st, 2011

    Thanks all

  31. ZALAM
    November 13th, 2011

    Could you please give me CCNA latest dump. I am preparing for the test.


  32. Beotchy
    November 14th, 2011

    Hello All – would anyone be kind enough to mail me the latest packet tracer? awhile-89662@mypacks.net

  33. Beotchy
    November 15th, 2011

    NM on the packet tracer – got it.

  34. Lan. A
    November 24th, 2011

    Vash thanks for the simulations. how did u do ? coz b4 i saw ur link, it was very hard for me. i just couldnt download each time i tried to, using the link on the 9tut page

  35. v-leow
    December 6th, 2011

    I downloaded the GNS3 simulator and when I try to run it it ask register at least 1 ISO. Where do I get these ISO’s and how do I register them? New to CCNA and would appreciate all the help I can get.

  36. Agali Cornel
    December 6th, 2011

    Please guys, i would appreciate the latest version of packet tracer plus recent CCNP study materials. My internet connection isn’t steady to download all. My e-mail address is sleekcm@yahoo.com. Thanks guys!

  37. XYZ
    December 21st, 2011


    there are a lots of IOS available in the internet, use google to search it or search it from 4shared.com.

  38. Arun
    January 7th, 2012

    What I think basically to be a good network administration, you have to do it live in a router itself, simulators wont help out much to boost our confidence….

  39. Sachin S Shirke
    January 13th, 2012

    Could you please give me CCNA latest dump & Idea’s of how to understand the whole concept as I am preparing for the test.


  40. tntboy
    January 17th, 2012

    i need free packet tracer software download to practice for my exam and latest dump if possible please. chris.joseph@btinternet.com it’s not easy.

  41. Basil
    January 19th, 2012

    I am taking my CCNA soon can some one help me with latest dump and a very good simulator.
    Counting on you

  42. Basil
    January 19th, 2012

    I am taking my CCNA soon can some one help me with latest dump and a very good simulator. Send to basil.nwokolo@naoc.agip.it
    Counting on you

  43. maddy
    January 19th, 2012

    i m preparing my CCNA can some one help me with latest dump
    plz send it to mehtab_kpg@rediffmail.com

  44. stranger
    January 21st, 2012

    i’m planning to wirte my CCNA exam… can someone plzz give me a hand……..

  45. Sundar
    January 28th, 2012

    I have passed CCNA exam today.Planning CCNP next month….sim ACL EIGRP VTP…

    Thanks 9 tut

  46. Steve H.
    January 29th, 2012

    Hi all, I’m taking CCNA and I need the Packet Tracer for my Macbook, Would you please kind to send me a copy of this program… thanks a lot….

  47. afzal
    February 3rd, 2012

    where is the download link man………

  48. Nazir
    February 6th, 2012

    some 1 tell me how i can use the router? what things i should remember on my finger tips plzzzz

  49. Mohammed
    February 10th, 2012


    Is there a way to download these questions and labs to use in offline mode


Comment pages
1 2 3 6 251
Add a Comment