Wireless Access

 View Only
  • 1.  Denied wireless user traffic to domain controller

    Posted 30 days ago

    Good afternoon all,

    We're dealing with an University owned computer that has authenticated successfully and thus been successfully assigned an Aruba role within our AOS8.10 Controller environment. The role has been configured to deny traffic to a couple of subnets and then allow all. All of that said, I'm seeing traffic from this client to our domain controller getting denied (see datapath output below). Since the role should allow this traffic I'm at a loss as to why it would still get denied. 

    Client IP = 10.124.35.58
    Domain Contoller IP = 10.2.0.63
    Second DC IP = 10.2.0.62

    ---------------------------------------------------------------------------------------------------------------------------------------------------

    (MC1) [MDC] *#show datapath session table 10.124.35.58 | include 10.2.0.6
    10.124.35.58      10.2.0.63       17   63905 389    0/0     0    0   0   tunnel 6209 9    3          756        FDC             20       
    10.2.0.63         10.124.35.58    17   389   63905  0/0     0    0   1   tunnel 6209 9    0          0          FDY             20       
    10.124.35.58      10.2.0.62       6    50458 445    0/0     0    0   1   tunnel 6209 221  68         17214      Ci              20       
    10.2.0.62         10.124.35.58    6    445   50458  0/0     0    0   1   tunnel 6209 221  64         9636       i               28       
    10.2.0.62         10.124.35.58    17   389   63907  0/0     0    0   0   tunnel 6209 8    0          0          FDY             20       
    10.124.35.58      10.2.0.62       17   63907 389    0/0     0    0   0   tunnel 6209 8    3          756        FDC             20  



    ------------------------------
    [Matt]
    [Director of Infrastructure Services]
    ------------------------------


  • 2.  RE: Denied wireless user traffic to domain controller

    Posted 30 days ago

    Matt,

    Did you double check the order of your ACL(s)? Maybe a simple mis-ordering of the ACE (single rule) entries?

    Thanks,

    Brad

     

     






  • 3.  RE: Denied wireless user traffic to domain controller

    Posted 30 days ago

    Brad,

    Yes sir, I've checked and rechecked. Attached are a pics of the policies in use and their order.



    ------------------------------
    [Matt]
    [Director of Infrastructure Services]
    ------------------------------



  • 4.  RE: Denied wireless user traffic to domain controller

    Posted 30 days ago
    Edited by GorazdKikelj 30 days ago

    Hi Mat.

    Just an idea. Can it be, that 10.2.0.0 subnet is embedded in one of the deny aliases?

    Other reason can be that client get a wrong role.

    Try to see what is returned for  client role with "show rights <role>". This should show all active rules for the role.

    Best, Gorazd



    ------------------------------
    Gorazd Kikelj
    MVP Guru 2025
    ------------------------------



  • 5.  RE: Denied wireless user traffic to domain controller

    Posted 30 days ago
    Gorazd,

    I double checked the NetDestinations to be sure 10.2.0.0 subnet wasn't included and verified the correct role is being assigned. I've opened a ticket with TAC so we'll see what they are able to find. I'll update this discussion with what TAC is able to find, and hopefully fix.

    --
    Sincerely,

    Matt Dillion
    Assistant Director of Infrastructure Services
    Christopher Newport University
    1 Avenue for the Arts
    Newport News, VA  23606
    O:  (757) 594-8628
    C:  (757) 897-8802
    E:  matthew.dillion@cnu.edu

    CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Please do not forward or include additional people when replying. If you believe that someone not included as a recipient needs to be aware of the information, please send the name of that person to the sender. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message.





  • 6.  RE: Denied wireless user traffic to domain controller
    Best Answer

    Posted 16 days ago

    All,

    After opening a TAC case and walking through some troubleshooting steps I decided to create a new security policy entry that specifically allows the traffic that was originally getting blocked, that seem to have fixed my issue. TAC was unable to explain why the traffic was getting blocked in the first place and I to be honest, I was tired of spending so much time watching them run the same four commands over and over again.



    ------------------------------
    [Matt]
    [Director of Infrastructure Services]
    ------------------------------



  • 7.  RE: Denied wireless user traffic to domain controller

    Posted 16 days ago

    Hi Matt.

    Glad that you resolve the issue. To me it looks like some implicit Deny somewhere in rules chain.

    Best, Gorazd



    ------------------------------
    Gorazd Kikelj
    MVP Guru 2025
    ------------------------------