Gns3 Error Failed to determine version of Dynamips Windows 8


Gns3 is not working on Windows 8:



When I start using GNS3-0.8.3.1-Standalone-64-bit on windows 8 64bit, I got the error “failed to determine version of Dynamips”. After long troubleshooting I am able to resolve this issue. I don’t know exactly why dynamips giving this message but from error wording it seems like that it is because of gns3 compatibly issue with windows 8.  


Anyway you can follow the below steps for resolving this issue.
1.       While troubleshooting with Dynamips.exe I notice that some .Dll files are missing on windows 8 in order to start Gns3 on windows 8. These are “Packet.dll” and “wpcap.dll” I copies these two files from my windows 7 machine to windows 8 and then test dynamips again and I got the positive result with message “Dynamips 0.2.8-RC3 successfully started “. You can download and copy these to files to C:\Windows\SysWOW64 on windows 8. If you have a windows 7 installed then you can also copy these two Dll files from same above location and can paste these into Windows 8.


Download Dll files Gns3
2.       Hope this will resolve your issue if not then you add gns3.exe and dynamips.exe to firewall allow applications from firewall setting and test again.



3.       Also try to run gns3.exe and dynamips.exe in windows 7 compatibility mode from properties\ compatibility tab.

Please share your experience if your issue is resolved also if you have same issue with dynamips then feel free to ask any question.

Gns3 installation on Windows 8

30 comments:

  1. AnonymousJanuary 10, 2013 at 5:00 AM

    mate its nice effort. I was just thinking to remove Win 8 but read ur Article and fix the issue. thanks mate

    ReplyDelete
    Replies
    1. AnonymousApril 9, 2013 at 5:42 PM

      Yes, its a real nice effort and quite an information. Saved me alot of time and tediousness. Thanks a Million Mate !!!!!!

      Delete
  2. AnonymousJanuary 14, 2013 at 10:00 PM

    Very well done. I was having the same issue. Now its solved. Thanks

    ReplyDelete
  3. Shiljith.AKJanuary 29, 2013 at 12:19 AM

    Thanks......mate..it worked :)

    ReplyDelete
  4. UnknownFebruary 6, 2013 at 11:54 AM

    It worked, thanks...

    ReplyDelete
  5. cornellFebruary 7, 2013 at 3:09 AM

    thanks a bunch

    ReplyDelete
  6. AnonymousFebruary 16, 2013 at 5:20 PM

    really working in windows 8

    ReplyDelete
  7. SelvinFebruary 28, 2013 at 11:42 AM

    Perfect! Thanks for your help!

    ReplyDelete
  8. UnknownMarch 9, 2013 at 10:43 PM

    This are the links to dll's to download:
    http://www.dll-files.com/dllindex/dll-files.shtml?packet
    http://www.dll-files.com/dllindex/dll-files.shtml?wpcap

    Windows 8 x64 works like a charm

    ReplyDelete
  9. UnknownMarch 9, 2013 at 10:44 PM

    This are link to dll's download:
    http://www.dll-files.com/dllindex/dll-files.shtml?packet
    http://www.dll-files.com/dllindex/dll-files.shtml?wpcap

    Windows 8 x64 works like a charm, thank you

    ReplyDelete
  10. AnonymousMarch 16, 2013 at 7:31 AM

    Anyone has the 2 Dll files willing to share ?

    ReplyDelete
    Replies
    1. AnonymousMarch 16, 2013 at 7:13 PM

      you can find the download link in above post...."Download Dll files Gns3"

      Delete
  11. UnknownMarch 30, 2013 at 12:36 PM

    Thnx... It worked..

    ReplyDelete
  12. UnknownApril 5, 2013 at 8:15 PM

    I run gns3.exe in first time, it is working. But, when i run it again (after i was close it), it is not working. It report: "gns3.exe has stop working....". I am sorry, i don't know how to upload this image error.

    ReplyDelete
  13. UnknownApril 14, 2013 at 9:32 PM

    awesome! - that is a very clever and useful fix!!

    ReplyDelete
  14. AnonymousApril 17, 2013 at 8:24 AM

    Thanks, this led me in the right direction

    I just downloaded and installed winpcap to do the same thing

    https://www.winpcap.org/install/default.htm

    ReplyDelete
  15. UnknownApril 23, 2013 at 4:28 AM

    than you
    yes those files are missing also on windows server 2008
    “Packet.dll” and “wpcap.dll

    ReplyDelete
  16. AnonymousApril 25, 2013 at 7:41 PM

    This is just perfect! Fixed my "failed to determine version of Dynamips" and my "could not connect to hypervisor on 127.0.0.1 port 7200" (while adding IOS images) error too. Thanks a ton mate!

    ReplyDelete
  17. maddyMay 7, 2013 at 2:17 PM

    yes, it is working, thanks

    ReplyDelete
  18. AnonymousMay 8, 2013 at 10:33 PM

    Thanks a looottttt........buddy..
    Really grateful to u guys...

    ReplyDelete
  19. UnknownMay 22, 2013 at 5:14 PM

    amaziiiiing !!! I was stuck at this since a long time... but now solved.. thanks guys you rock !!

    ReplyDelete
  20. UnknownJune 6, 2013 at 10:35 PM

    wonderfulll da........... im trying for two dayes.... so today i will check in google.. and saw ur article.. wonderful invention.. thanx a lot dear.....

    ReplyDelete
  21. daveGJune 10, 2013 at 2:32 AM

    Thanks a lot

    ReplyDelete
  22. UnknownAugust 25, 2013 at 10:15 AM

    where to download the c2621xM router ios image for gns23?

    ReplyDelete
  23. AnonymousAugust 30, 2013 at 7:42 PM

    Thanks a lot..You really helped me..!!

    ReplyDelete
  24. AnonymousSeptember 26, 2013 at 4:52 AM

    thanks, it`s working now

    ReplyDelete
  25. AnonymousFebruary 11, 2014 at 1:31 AM

    Excellent work! Thanks a bunch!

    ReplyDelete
  26. AnonymousFebruary 27, 2014 at 9:17 PM

    Thanks. Resolved on Windows XP.

    ReplyDelete
  27. AnonymousMay 8, 2014 at 8:47 AM

    thanks. excellent work.

    ReplyDelete
  28. AnonymousMay 23, 2015 at 6:24 AM

    Thanks alot, this post have saved alot of time........Good job

    ReplyDelete

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