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1418 Views 15 Replies Latest reply: Jan 24, 2013 12:41 PM by Gonzo RSS 1 2 Previous Next

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What radius server for 802.1x port authentication?

Jan 24, 2013 1:10 AM

Gonzo 291 posts since
Oct 10, 2008

Hello,

 

Any help would be most appreciated guys, I'm stuck.

 

I want to test 802.1x port authentication for the exam.  I have my laptop plugged into the switch with a Windows 2008 server virtual machine running radius, but have no idea how to configure radius in windows and haven't found much via google either with regards to Cisco port authentication.  So my question is how did you test this and what radius server did you use and are there and instructions for idiots like me?

 

I'm more of a Windows user but I do also have an ubuntu Linux laptop which I guess I can use, but I'm rubbish with Linux

 

Thanks

  • cadetalain 2,642 posts since
    Sep 18, 2008
    Currently Being Moderated
    1. Jan 24, 2013 2:01 AM (in response to Gonzo)
    Re: What radius server for 802.1x port authentication?

    Hi Gonzo,

     

    http://winradius.soft32.com/

     

    this is enough for basic testing of 802.1x.

     

    Regards.

     

    Alain

  • cadetalain 2,642 posts since
    Sep 18, 2008
    Currently Being Moderated
    3. Jan 24, 2013 2:28 AM (in response to Gonzo)
    Re: What radius server for 802.1x port authentication?

    Hi Gonzo,

     

    could you rephrase your question because I don't fully understand what you mean.

    What i can say is that the client PC( the supplicant) will not authenticate with the radius server directly.

     

    Regards.

     

    Alain

  • cadetalain 2,642 posts since
    Sep 18, 2008
    Currently Being Moderated
    5. Jan 24, 2013 4:17 AM (in response to Gonzo)
    Re: What radius server for 802.1x port authentication?

    Which OS on the PC ?

    For port-control, the syntax for dot1x  is surely different depending on ios version and switch model.Just google for the configuration guide for the 3560 and 15.0.2 and you'll find the correct syntax.

     

    Regards.

     

    Alain

  • cadetalain 2,642 posts since
    Sep 18, 2008
    Currently Being Moderated
    9. Jan 24, 2013 5:54 AM (in response to Gonzo)
    Re: What radius server for 802.1x port authentication?

    Hi Gonzo,

     

    I don't see anything wrong in the config. Is the Winradius listening on  UDP 1812 ?

    Has it got the same key as the switch ?

     

    Can you provide output of debug dot1x all

     

    Regards.

     

    Alain

  • Bikas Pandey 44 posts since
    Jan 4, 2011
    Currently Being Moderated
    10. Jan 24, 2013 5:59 AM (in response to Gonzo)
    Re: What radius server for 802.1x port authentication?

    Hi Gonzo,

     

     

    Unless and utill you are not authenticated with radius server , the port will remain in amber . The system will says connected because the port and sytem  will be exchanging  EAPOL messages between them.Once you are authenticated via radius server the port will turns into greeen.

  • cadetalain 2,642 posts since
    Sep 18, 2008
    Currently Being Moderated
    13. Jan 24, 2013 10:42 AM (in response to Gonzo)
    Re: What radius server for 802.1x port authentication?

    Hi,

     

    you should know the basics for the CCNP indeed.

     

    take a look here it is surely why it ain't working:https://supportforums.cisco.com/thread/2167934

     

    Regards

     

    Alain

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