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802.1x failing but radius authentication succeeded

  • 1.  802.1x failing but radius authentication succeeded

    Posted 02-02-2018 10:29
    Hello,

    I'm testing 802.1x authentication on extreme XOS. I'm running XOS 16.2.4.5 patch1-5 on x440-8t switch. I've completed the setup based on the documentation provided by extreme. The problem is that I'm receiving Authentication failed for Network Login 802.1x user host/xxxxxx Mac xxxxxxx port x, although if I run a wireshark on my radius server, I see authentication successful for host/xxxxxx. I'm wondering why the switch is considering it as failed. My radius server is a Microsoft 2008R2 NPS server.

    Thanks
    Mario


  • 2.  RE: 802.1x failing but radius authentication succeeded

    Posted 02-02-2018 15:32
    Mario
    show radius screen shot may help as well as
    show conf eaps
    show config aaa
    show config | include radius


  • 3.  RE: 802.1x failing but radius authentication succeeded

    Posted 02-02-2018 15:37
    Hi Jason,

    X440-8t.7 # sh radius
    Radius Default State: disabled
    Radius Default Timeout: 3 seconds
    Radius Algorithm: standard
    Radius Retries: 20
    Switch Management Radius: disabled
    Switch Management Radius server connect time out: 120 seconds
    Switch Management Radius Accounting: disabled
    Switch Management Radius Accounting server connect time out: 3 seconds
    Netlogin Radius: enabled
    Netlogin Radius server connect time out: 120 seconds
    Netlogin Radius Accounting: disabled
    Netlogin Radius Accounting server connect time out: 3 seconds

    Primary Netlogin Radius server: Status is Active
    host name :
    IP address : 172.21.192.162
    Server IP Port: 1812
    Client address: 172.21.192.222 (VR-Default)
    Retries : 20 *
    Timeout : 120 *
    shared secret : (encrypted secret)
    Access Requests : 0 Access Accepts : 0
    Access Rejects : 0 Access Challenges : 0
    Access Retransmits: 0 Client timeouts : 0
    Bad authenticators: 0 Unknown types : 0
    Round Trip Time : 0

    Legend: An asterisk (*) indicates a global value is in use.
    X440-8t.8 #
    X440-8t.8 #
    X440-8t.8 # restart ports 1
    X440-8t.9 # sh radius
    Radius Default State: disabled
    Radius Default Timeout: 3 seconds
    Radius Algorithm: standard
    Radius Retries: 20
    Switch Management Radius: disabled
    Switch Management Radius server connect time out: 120 seconds
    Switch Management Radius Accounting: disabled
    Switch Management Radius Accounting server connect time out: 3 seconds
    Netlogin Radius: enabled
    Netlogin Radius server connect time out: 120 seconds
    Netlogin Radius Accounting: disabled
    Netlogin Radius Accounting server connect time out: 3 seconds

    Primary Netlogin Radius server: Status is Active
    host name :
    IP address : 172.21.192.162
    Server IP Port: 1812
    Client address: 172.21.192.222 (VR-Default)
    Retries : 20 *
    Timeout : 120 *
    shared secret : (encrypted secret)
    Access Requests : 1 Access Accepts : 1
    Access Rejects : 0 Access Challenges : 3
    Access Retransmits: 0 Client timeouts : 0
    Bad authenticators: 0 Unknown types : 0
    Round Trip Time : 0

    Legend: An asterisk (*) indicates a global value is in use.

    X440-8t.11 # show conf eaps
    #
    # Module eaps configuration.
    #
    X440-8t.12 # show config aaa
    #
    # Module aaa configuration.
    #
    configure radius netlogin primary server 172.21.192.162 1812 client-ip 172.21.192.222 vr VR-Default
    configure radius netlogin primary shared-secret encrypted "(encrypted secret)"
    enable radius netlogin
    configure radius mgmt-access timeout 120
    configure radius netlogin timeout 120
    configure radius retries 20
    X440-8t.13 # show config | include radius
    configure radius netlogin primary server 172.21.192.162 1812 client-ip 172.21.192.222 vr VR-Default
    configure radius netlogin primary shared-secret encrypted "(encrypted secret)"
    enable radius netlogin
    configure radius mgmt-access timeout 120
    configure radius netlogin timeout 120
    configure radius retries 20
    X440-8t.14 #

    ---
    Edited by CM to remove the shared secret


  • 4.  RE: 802.1x failing but radius authentication succeeded

    Posted 02-02-2018 18:34
    Also it would be useful output of: sh netlogin port XX, where XX is port when netlogin is enabled and "successful".


  • 5.  RE: 802.1x failing but radius authentication succeeded

    Posted 02-05-2018 08:25
    Hi Stefan,

    X440-8t.8 # sh netlogin port 1
    Port : 1
    Port Restart : Disabled
    Allow Egress : None
    Vlan : nt_login
    Authentication : 802.1x
    Port State : Enabled
    Auth Failure Vlan : Disabled
    Auth Service-Unavailable Vlan : Disabled
    ------------------------------------------------
    802.1x Port Configuration
    ------------------------------------------------
    Quiet Period : 60
    Supplicant Response Timeout : 30
    Re-authentication : On
    Re-authentication period : 3600
    Max Re-authentications : 3
    RADIUS server timeout : 30
    Guest Vlan : Disabled
    ------------------------------------------------
    Netlogin Clients
    ------------------------------------------------

    MAC IP address Authenticated Type ReAuth-Timer User
    00:24:e8:d9:5d:ec 0.0.0.0 No 802.1x 0
    -----------------------------------------------
    (B) - Client entry Blackholed in FDB

    Number of Clients Authenticated : 0



  • 6.  RE: 802.1x failing but radius authentication succeeded

    Posted 02-06-2018 19:25
    Interesting...Everything looks good. Could you please share output of this command:
    show config | include netlogin (it is slightly different than sh config | include radius)
    and
    show vlan


  • 7.  RE: 802.1x failing but radius authentication succeeded

    Posted 02-07-2018 03:43
    Hi Stefan

    X440-8t.1 # show config | include netlogin
    configure radius netlogin primary server 172.21.192.162 1812 client-ip 172.21.192.222 vr VR-Default
    configure radius netlogin primary shared-secret encrypted "#$cdHMN3kX1OgZyNlPvyzn0ZhwmNu23g=="
    enable radius netlogin
    configure radius netlogin timeout 120
    configure netlogin vlan nt_login
    enable netlogin dot1x
    enable netlogin ports 1 dot1x
    configure netlogin ports 1 mode port-based-vlans
    configure netlogin ports 1 no-restart
    X440-8t.2 # sh vlan
    -----------------------------------------------------------------------------------------------
    Name VID Protocol Addr Flags Proto Ports Virtual
    Active router
    /Total
    -----------------------------------------------------------------------------------------------
    Default 1 172.21.192.222 /20 ------------T---------------- ANY 2 /11 VR-Default
    Mgmt 4095 ------------------------------------------------- ANY 0 /1 VR-Mgmt
    nt_login 4094 ----------------------LN------------------------- ANY 0 /1 VR-Default
    -----------------------------------------------------------------------------------------------
    Flags : (B) BFD Enabled, (c) 802.1ad customer VLAN, (C) EAPS Control VLAN,
    (d) Dynamically created VLAN, (D) VLAN Admin Disabled,
    (e) CES Configured, (E) ESRP Enabled, (f) IP Forwarding Enabled,
    (F) Learning Disabled, (h) TRILL Enabled, (i) ISIS Enabled,
    (I) Inter-Switch Connection VLAN for MLAG, (k) PTP Configured,
    (l) MPLS Enabled, (L) Loopback Enabled, (m) IPmc Forwarding Enabled,
    (M) Translation Member VLAN or Subscriber VLAN, (n) IP Multinetting Enabled,
    (N) Network Login VLAN, (o) OSPF Enabled, (O) Flooding Disabled,
    (p) PIM Enabled, (P) EAPS protected VLAN, (r) RIP Enabled,
    (R) Sub-VLAN IP Range Configured, (s) Sub-VLAN, (S) Super-VLAN,
    (t) Translation VLAN or Network VLAN, (T) Member of STP Domain,
    (v) VRRP Enabled, (V) VPLS Enabled, (W) VPWS Enabled, (Z) OpenFlow Enabled

    Total number of VLAN(s) : 3



  • 8.  RE: 802.1x failing but radius authentication succeeded

    Posted 02-07-2018 16:18
    Hello again,

    I have opened a case at the same time with extreme TAC. he advised to enable debug logs following the 2 commands:

    configure log filter defaultFilter add events nl severity debug-verbose
    enable log debug-mode

    Once I have done that, I started to see the reason why it is failing.

    Authentication failed for Network Login 802.1x user host/xxxxx Mac xxxxxxx port 1
    Client[1, xxxxxxx] auth move result: Destination VLAN not supplied
    Client[1, xxxxxxx] authVlans preprocessing result; Destination VLAN not supplied
    802.1X received authentication result 1 for client xxxxxxxxx from AAA
    An EAP packet was sent to RADIUS for client xxxxxxxx via AAA

    I understood that the switch is expecting the destination vlan from the radius server. I configured it and now it works properly.

    I may have wrongly understood the document, however the destination vlan part is put in the additional notes on the documentation, as if it was optional.


  • 9.  RE: 802.1x failing but radius authentication succeeded

    Posted 02-08-2018 05:53
    You must specify the very same vlan tag and name which was was previously defined in the radius server. This vlan must be present in switch as well. Also I would suggest to use configuration without no-restart port options (but it depends on your conditions). In previous version of XOS there were some serious issues with reauth process on the some port (e.g. plug in the same cable to the port) and it results in auth error. But it is true that this issues were succesfully repaired somewhere in 09-10/2017.


  • 10.  RE: 802.1x failing but radius authentication succeeded

    Posted 02-07-2018 16:18
    Thanks but when you say the switch was expecting the destination vlan from the radius, what configuration did you change as i have the same exact issue:



  • 11.  RE: 802.1x failing but radius authentication succeeded

    Posted 02-07-2018 16:18
    Hi Stephanos,

    You should follow the Additional notes of the following documentation.
    For example, if you want to add the successful authentication to vlan Default as untagged, you should add the following attribute value Udefault.
    I don't know why they put it in additional notes while it should be a required configuration.


  • 12.  RE: 802.1x failing but radius authentication succeeded

    Posted 02-07-2018 16:18
    Thank you, ive done that already but still getting the error:

    auth move result: Destination VLAN not supplied
    authVlans preprocessing result; Destination VLAN not supplied

    Vlan on switch is named: BR-STA-078

    settings Radius Server see screenshot:





  • 13.  RE: 802.1x failing but radius authentication succeeded

    Posted 02-07-2018 16:18
    the config looks good. did you try to test with a vlan that doesn't contain dashes "-" in the name? Try for instance the default vlan first.


  • 14.  RE: 802.1x failing but radius authentication succeeded

    Posted 02-07-2018 16:18
    ive tried that and still nothing...