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Remote Access Point Wired Port MAC Authentication

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  • 1.  Remote Access Point Wired Port MAC Authentication

    Posted Apr 22, 2025 09:19 AM

    Hi everyone,

    this is likely a small checkmark or similar setting that i have overlooked, but i need a sanity check :D

    I am trying to get the wired ports of a AP605H working properly. Currently, 802.1x authentication works, but not all devices we want to connect support 802.1x, so we need MAC Authentication as well.

    So, i have created a AAA profile:

    show aaa profile RAP-Wired-Port

    AAA Profile "RAP-Wired-Port"
    ----------------------------
    Parameter                                               Value
    ---------                                               -----
    Initial role                                            logon
    MAC Authentication Profile                              <redacted>-dash-lower
    MAC Authentication Default Role                         authenticated
    MAC Authentication Server Group                         Clearpass
    802.1X Authentication Profile                           <redacted>
    802.1X Authentication Default Role                      authenticated
    802.1X Authentication Server Group                      Clearpass-Servers
    Download Role from CPPM                                 Disabled
    Set username from dhcp option 12                        Disabled
    L2 Authentication Fail Through                          Disabled
    Multiple Server Accounting                              Disabled
    User idle timeout                                       N/A
    Max IPv4 for wireless user                              2
    RADIUS Accounting Server Group                          Clearpass
    RADIUS Roaming Accounting                               Disabled
    RADIUS Interim Accounting                               Disabled
    RADIUS Acct-Session-Id In Access-Request                Disabled
    Station-based RADIUS Accounting Session for Wireless    Disabled
    XML API server                                          N/A
    RFC 3576 server                                         <Clearpass IP>
    RFC 3576 server                                         <Secondary Clearpass IP>
    User derivation rules                                   N/A
    Wired to Wireless Roaming                               Enabled
    Reauthenticate wired user on VLAN change                Disabled
    Device Type Classification                              Enabled
    Enforce DHCP                                            Disabled
    PAN Firewall Integration                                Disabled
    Open SSID radius accounting                             Disabled
    Apply ageout mechanism on bridge mode wireless clients  Disabled
    Diffie-Hellman Groups Supported for EnhancedOpen        19
    Denylist client when Security-Context-Override attack   Disabled
    Include Location-Object In Access-Request               Disabled
    Include Location-Object In Accounting-Request           Disabled

    I am re-using working Dot1x and MAC Authentication profiles.

    Dot1x authentication on the wired ports works.

    Both MAC and Dot1x Authentication (on different SSIDs) work on the RAP.

    MAC Authentication on the wired ports does not work.

    I see the requests hitting clearpass. Clearpass answers properly and sends the VLAN information.

    The VLAN was tripplechecked, it exists everywhere.

    The Client does not appear in the client list of the controller.

    In the logs of the controller, i see this for the MAC Adress of the client:

    Apr 22 13:54:27 2025  authmgr[5361]: <522310> <5361> <ERRS> |authmgr|  auth_send_supplicant_up_to_dot1x mkeys not set for user mac aa:bb:cc:dd:ee:ff
    Apr 22 13:54:27 2025  dot1x-proc:1[5840]: <522310> <5840> <ERRS> |dot1x-proc:1|  new_dot1x_user_from_auth_msg mkeys not set for client mac aa:bb:cc:dd:ee:ff

    This repeats everytime the link changes and coincidizes with the successfull authentication messages on clearpass.

    I am a bit stumped to be honest.

    Can someone point me in the proper direction where to look next to troubleshoot this issue?



  • 2.  RE: Remote Access Point Wired Port MAC Authentication

    Posted Apr 23, 2025 09:31 AM

    You'll want to enable L2 authentication fail through.



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    Carson Hulcher, ACEX#110
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