Using Secure CRT to connect to GNS3 LAB

In CategoryComputer Networks

I like the tabbed connections feature while working with Secure CRT,  it allows quick switchting between multiple  terminal Connections.

If we use windows default telnet or putty  , we miss this convenient feauture .



While preparing for my CCNP recertification , I faced a problem using  Secure CRT with Gns3 labs on windows 7. Though there is an option to select secure crt as the defualt client , for some reason it didn’t work more over, there was some wrong  path mentioned  in the default settings  (see below).

start C:\progra~1 andyk~1\SecureCRT\SecureCRT.EEE /script C:\progra~1\gns3\securecrt.vbs /arg %d /T /telnet %h %p

Actually you do not need to put dos directory name in the path on  windows 7  .So i tried  the command

“C:\Program Files\VanDyke Software\SecureCRT\SecureCRT.EXE” /script “C:\Program Files\GNS3\securecrt.vbs” /arg %d /T /telnet %h %p           (  including ” ” ).



But this returned an error message saying that the remote system refused the connection , from which I  understood  that it is because of windows firewall . I added  inbound and out bound rules in windows firewall advanced settings to allow  C:\Program Files\VanDyke Software\SecureCRT\SecureCRT.EXE   and replaced   %h     with  in the command above.









You can see  the secure crt connection tabs in the picture which  shows my multiple routers in GNS3.

















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4 Responses to “Using Secure CRT to connect to GNS3 LAB”

  1. waleed Says:

    if i enter after starting putty or securecrt .. nothing happend … its remain blinking …

    Connected to Dynamips VM “R1” (ID 0, type c3600) – Console port
    Press ENTER to get the prompt.

    if we enter nothing happened .. solve please

  2. sreekanth Says:

    can you double check gns3 settings. use another ios file

  3. Ramadass Says:


    I am ramadass using for dell insprion n4110 is having windows 7 64 bit.then use in don’t know configure secureCRT.can you help me how to configure

    i want securecrt software link please sent to me…

  4. sreekanth Says:

    hi , for windows you can download from but this is trail version . securecrt is not free You need to purchase it . Ah thanks for free&opensource softwares , there are some alternatives like teraterm and superputty which are free

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