Wireless Access

last person joined: yesterday 

Access network design for branch, remote, outdoor, and campus locations with HPE Aruba Networking access points and mobility controllers.
Expand all | Collapse all

Thousands of wlsxNUserAuthenticationFailed SNMP traps for users failing on OPEN SSID

This thread has been viewed 2 times
  • 1.  Thousands of wlsxNUserAuthenticationFailed SNMP traps for users failing on OPEN SSID

    Posted Apr 18, 2017 05:41 AM

    Hi,

     

    I have configured an open SSID with MAC-authentication. Its working fine for the users whose mac addresses are added on the controller's local database. However for other users which are failing attempting association on this open SSID, there are thousands of SNMP traps generated every hour. This is quite high a number.

    Below is my configuration, please suggest if I am missing something in my configuration for achieving mac-authentication with open SSID.

     

    Any suggestions, please let me know.

    (WLC_0001) #show wlan virtual-ap OPEN-SSID-vap_prof

    Virtual AP profile "OPEN-SSID-vap_prof"
    -------------------------------------
    Parameter                                       Value
    ---------                                       -----
    AAA Profile                                     OPEN-SSID-aaa_prof
    802.11K Profile                                 default
    Hotspot 2.0 Profile                             N/A
    SSID Profile                                    OPEN-SSID-ssid_prof
    Virtual AP enable                               Enabled
    VLAN                                            822
    Forward mode                                    tunnel
    Allowed band                                    all
    Band Steering                                   Disabled
    Cellular handoff assist                         Disabled
    Steering Mode                                   balance-bands
    Dynamic Multicast Optimization (DMO)            Disabled
    Dynamic Multicast Optimization (DMO) Threshold  6
    Drop Broadcast and Unknown Multicast            Disabled
    Convert Broadcast ARP requests to unicast       Enabled
    Authentication Failure Blacklist Time           3600 sec
    Blacklist Time                                  3600 sec
    Deny inter user traffic                         Disabled
    Deny time range                                 N/A
    DoS Prevention                                  Disabled
    HA Discovery on-association                     Enabled
    Mobile IP                                       Enabled
    Preserve Client VLAN                            Disabled
    Remote-AP Operation                             standard
    Station Blacklisting                            Enabled
    Strict Compliance                               Disabled
    VLAN Mobility                                   Disabled
    WAN Operation mode                              always
    FDB Update on Assoc                             Disabled
    WMM Traffic Management Profile                  N/A
    Anyspot profile                                 N/A




    (WLC_0001) # show aaa profile OPEN-SSID-aaa_prof

    AAA Profile "OPEN-SSID-aaa_prof"
    ------------------------------
    Parameter                           Value
    ---------                           -----
    Initial role                        denyall
    MAC Authentication Profile          OPEN-SSID-USERS-Altai
    MAC Authentication Default Role     guest
    MAC Authentication Server Group     internal
    802.1X Authentication Profile       dot1x_prof-iwj39
    802.1X Authentication Default Role  guest
    802.1X Authentication Server Group  N/A
    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      N/A
    RADIUS Interim Accounting           Disabled
    XML API server                      N/A
    RFC 3576 server                     N/A
    User derivation rules               N/A
    Wired to Wireless Roaming           Enabled
    SIP authentication role             N/A
    Device Type Classification          Enabled
    Enforce DHCP                        Disabled
    PAN Firewall Integration            Disabled
    Open SSID radius accounting         Disabled

    (WLC_0001) #

    (WLC_0001) #show wlan ssid-profile OPEN-SSID-ssid_prof

    SSID Profile "OPEN-SSID-ssid_prof"
    --------------------------------
    Parameter                                         Value
    ---------                                         -----
    SSID enable                                       Enabled
    ESSID                                             OPEN-SSID
    Encryption                                        opensystem
    Enable Management Frame Protection                Disabled
    Require Management Frame Protection               Disabled
    DTIM Interval                                     1 beacon periods
    802.11a Basic Rates                               6 9
    802.11a Transmit Rates                            6 9 12 18 24 36 48 54
    802.11g Basic Rates                               2 5
    802.11g Transmit Rates                            2 5 6 9 11 12 18 24 36 48 54
    Station Ageout Time                               1000 sec
    Max Transmit Attempts                             8
    RTS Threshold                                     2333 bytes
    Short Preamble                                    Enabled
    Max Associations                                  64
    Wireless Multimedia (WMM)                         Disabled
    Wireless Multimedia U-APSD (WMM-UAPSD) Powersave  Enabled
    WMM TSPEC Min Inactivity Interval                 0 msec
    Override DSCP mappings for WMM clients            Disabled
    DSCP mapping for WMM voice AC (0-63)              N/A
    DSCP mapping for WMM video AC (0-63)              N/A
    DSCP mapping for WMM best-effort AC (0-63)        N/A
    DSCP mapping for WMM background AC (0-63)         N/A
    Multiple Tx Replay Counters                       Disabled
    Hide SSID                                         Disabled
    Deny_Broadcast Probes                             Disabled
    Local Probe Request Threshold (dB)                0
    Auth Request Threshold (dB)                       0
    Disable Probe Retry                               Enabled
    Battery Boost                                     Disabled
    WEP Key 1                                         N/A
    WEP Key 2                                         N/A
    WEP Key 3                                         N/A
    WEP Key 4                                         N/A
    WEP Transmit Key Index                            1
    WPA Hexkey                                        N/A
    WPA Passphrase                                    ********
    Maximum Transmit Failures                         0
    EDCA Parameters Station profile                   N/A
    EDCA Parameters AP profile                        N/A
    BC/MC Rate Optimization                           Disabled
    Rate Optimization for delivering EAPOL frames     Enabled
    Strict Spectralink Voice Protocol (SVP)           Disabled
    High-throughput SSID Profile                      OPEN-SSID-htssid_prof
    802.11g Beacon Rate                               12
    802.11a Beacon Rate                               12
    Video Multicast Rate Optimization                 default
    Advertise QBSS Load IE                            Disabled
    Advertise Location Info                           Disabled
    Advertise AP Name                                 Disabled
    802.11r Profile                                   N/A
    Enforce user vlan for open stations               Disabled
    Enable OKC                                        Enabled

    (WLC_0001) #



  • 2.  RE: Thousands of wlsxNUserAuthenticationFailed SNMP traps for users failing on OPEN SSID

    EMPLOYEE
    Posted Apr 18, 2017 05:52 AM

    If you have:

    - An Open SSID

    - Many users that could pass by that could see and connect

     

    You will have many mac authentication failures, because many devices are configure to connect to an open network automatically.



  • 3.  RE: Thousands of wlsxNUserAuthenticationFailed SNMP traps for users failing on OPEN SSID

    Posted Apr 18, 2017 08:20 AM

    Thanks Joseph.

     

    Will it not have any processing impact on Controller?

     

    I see over 1000 of these traps generated every hour in an setup of over 200 APs. Should I consider it as an obvious behaviour?

     

    Also, have pasted the configuration that I have for VAP profile, please suggest if thats in accordance with the recommended practice from Aruba



  • 4.  RE: Thousands of wlsxNUserAuthenticationFailed SNMP traps for users failing on OPEN SSID

    EMPLOYEE
    Posted Apr 18, 2017 09:49 AM

    I don't suggest doing mac authentication on an open SSID.  If you create a preshared key, you will not see as many mac authentication requests.  I don't think Aruba has a position on that topic.