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2371 Views 3 Replies Latest reply: Nov 24, 2012 2:39 PM by Elvin Arias RSS

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IOS NTP Server

Nov 10, 2010 10:24 AM

Aaron 134 posts since
Aug 23, 2009



I'm having a issue with the IOS NTP Server in GNS3. I configure one router to act as NTP master. Then I configure another router to get time synchronized with that ntp server, and then GNS3 hangs the dynamips process running the ntp master. I've tried with and without ntp authenticarion and always get the same result NTP master hangs.

Is anybody else experiencing this problem?



  • paulonwude 27 posts since
    Mar 19, 2009
    Currently Being Moderated
    1. Nov 21, 2012 5:39 PM (in response to Aaron)
    Re: IOS NTP Server

    Hi Aaron,


    Did you ever find a solution for this issue? After the router hangs, i have to shut down GNS3 and restart everytime. Now i have resorted to practicing without NTP support but i fix would be nice.

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  • Elvin Arias 2,508 posts since
    Mar 12, 2010
    Currently Being Moderated
    3. Nov 24, 2012 2:39 PM (in response to Aaron)
    Re: IOS NTP Server



    I've never experienced this problem, but i have something to say about it. On GNS3 when you configure NTPv3, if you are going to enable authentication, do it first than anything.


    I've had synchronization problems when i try to configure authentication after the NTP client(s) and NTP master(s) are alredy configured.



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