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
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1 3 4 5 6 251
  1. gavin
    January 5th, 2016

    I’m lovin this

  2. white
    January 5th, 2016


  3. jeremy
    January 5th, 2016

    it really is classic banter

  4. gavin
    January 5th, 2016

    fight me

  5. gavin
    January 5th, 2016

    gavin !!!!!!!!!!!!!!!!!!

  6. gavin
    January 5th, 2016

    Come to the car park at 6 Jeremy and i will fight you for the Cisco practicing software

  7. mike
    January 5th, 2016

    sure lad the answer is a demonstration of how the networkk wil work :D

  8. jeremy
    January 5th, 2016

    dont mess with jez the gangster

  9. mike
    January 5th, 2016

    u wanna fught?

  10. gavin
    January 5th, 2016

    More like gollum

  11. steve
    January 5th, 2016


  12. steve
    January 5th, 2016


  13. gavin
    January 5th, 2016

    You should shut up because you know i’m grandiloquent and you are an incompetent fool

  14. jeremy
    January 5th, 2016

    u should shut up cuz im very angry and wen im angry i can hurt people

  15. steve
    January 5th, 2016


  16. gavin
    January 5th, 2016


  17. steve
    January 5th, 2016


  18. jeremy
    January 5th, 2016

    u want shum?

  19. gavin
    January 5th, 2016

    Car Park my friend 6 o’clock

  20. steve
    January 5th, 2016

    I woke up on a mission

  21. gavin
    January 5th, 2016

    Fight me for the Cisco practicing software

  22. jeremy
    January 5th, 2016

    cisco is mine becuz i like computers more than my girlfriend

  23. davidattenborough
    January 5th, 2016


  24. gavin
    January 5th, 2016

    Haha i sold my house for the Cisco software

  25. gavin
    January 5th, 2016

    And then i lost it in a bet

  26. steve
    January 5th, 2016


  27. bill
    January 5th, 2016

    i sold my body for cisco….

  28. mike
    January 5th, 2016


  29. gavin
    January 5th, 2016

    Haha good one Steve

  30. steve
    January 5th, 2016

    What if the teachers see this?

  31. steve
    January 5th, 2016


  32. gavin
    January 5th, 2016

    I’m donating my body and my organs to help support Cisco so I would shut up

  33. steve
    January 5th, 2016

    See ya later

  34. mike
    January 5th, 2016

    i could donate for u

  35. mncedisi
    January 5th, 2016

    Hi guys can anyone pls help with the registering as a premium member its not allowing me and keep on saying my address and my zip code is incorrect. Can anyone tell me how can i register i have been trying with different card and its just not allowing me to.

  36. amazed
    January 9th, 2016

    You guys talked me out of trying this

  37. gavin
    January 12th, 2016

    Yeh i can help u

  38. Tyrone Johnson
    January 12th, 2016

    Thanks man wat i gotta do?

  39. Tyrone Johnson
    January 12th, 2016


  40. Shelby Comeauy
    March 3rd, 2016

    There is only a single method to get anybody to do something, which is to get them to want to do it.


  41. Eddie
    March 28th, 2016

    Nice example with PAcket Tracer..you can also use this to learn more about protocols with packet tracer

  42. Anonymous
    April 7th, 2016

    Any of these products easily used by MacBooks?

  43. Anonymous
    April 27th, 2016

    What news

  44. Anonymous
    May 1st, 2016


  45. Pablo
    July 7th, 2016

    Hi there,

    pretty new at this, can you suggest any simulator programmes i can use on a mac/ubuntu platform?

  46. tttt
    July 25th, 2016

    hi to all

  47. NASI
    August 23rd, 2016

    whats going on? i cant get what the reason behind this..?

  48. Eli
    August 28th, 2016


    I took the exam today but I failed. The copy run start wasn’t working on any sims.

  49. hoon
    August 31st, 2016

    who wants to fight?

  50. bmp
    September 7th, 2016

    @hoon come at me bro!

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