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Port based authentication randomly stops working

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  • 1.  Port based authentication randomly stops working

    Posted Jan 16, 2014 09:54 AM

    Hi all,

     

    We have big problems with 2 swithces that have been set up for mixed (mac-based and 802.x) authentication. PC's suddenly refuse to work on one port and the only way we have found that solves this is to plug it in a different port on the same switch. These ports do not have different configurations so it is a really odd problem.

     

    1 PC stays on identifying. (PC does not even get an unauth IP adress.)

    PC was connected to D16 log showed this: (Reverse logging)

    I 01/16/14 09:24:23 00435 ports: port D16 is Blocked by AAA

    I 01/16/14 09:24:16 00077 ports: port D16 is now off-line

     

    Connected the same PC to D18, no other changes and it works:

    I 01/16/14 09:25:45 00076 ports: port D18 is now on-line

    I 01/16/14 09:25:43 00435 ports: port D18 is Blocked by STP

    I 01/16/14 09:25:43 00435 ports: port D18 is Blocked by AAA

    I 01/16/14 09:25:43 00435 ports: port D18 is Blocked by STP

    I 01/16/14 09:25:43 00435 ports: port D18 is Blocked by AAA

    I 01/16/14 09:25:40 00077 ports: port D16 is now off-line

     

    No configuration differences between the ports:

    interface D16

       tagged vlan 126

       untagged vlan 1

       aaa port-access authenticator

       aaa port-access authenticator client-limit 8

       aaa port-access mac-based

       aaa port-access mac-based addr-limit 8

       aaa port-access mac-based reauth-period 10800

       aaa port-access mac-based unauth-vid 119

       loop-protect

       exit

     

    interface D18

       tagged vlan 126

       untagged vlan 1

       aaa port-access authenticator

       aaa port-access authenticator client-limit 8

       aaa port-access mac-based

       aaa port-access mac-based addr-limit 8

       aaa port-access mac-based reauth-period 10800

       aaa port-access mac-based unauth-vid 119

       loop-protect

       exit



  • 2.  RE: Port based authentication randomly stops working

    Posted Aug 18, 2020 11:54 AM

    I know its 6 years but did you ever get a solution to this as I appear to have a site suffering the same issue
    regards

    I 08/18/20 15:27:06 00076 ports: port 18 is now on-line
    I 08/18/20 15:31:48 00077 ports: port 18 is now off-line
    I 08/18/20 15:31:52 00435 ports: port 18 is Blocked by AAA
    I 08/18/20 15:31:52 00435 ports: port 18 is Blocked by STP
    I 08/18/20 15:31:52 00435 ports: port 18 is Blocked by AAA
    I 08/18/20 15:31:53 00435 ports: port 18 is Blocked by STP
    I 08/18/20 15:31:55 00076 ports: port 18 is now on-line
    I 08/18/20 15:37:53 00077 ports: port 16 is now off-line
    I 08/18/20 15:37:57 00435 ports: port 16 is Blocked by AAA
    I 08/18/20 15:37:57 00435 ports: port 16 is Blocked by STP
    I 08/18/20 15:37:57 00435 ports: port 16 is Blocked by AAA
    I 08/18/20 15:37:58 00435 ports: port 16 is Blocked by STP
    I 08/18/20 15:38:00 00076 ports: port 16 is now on-line

     



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