Wireless Access

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Access network design for branch, remote, outdoor, and campus locations with HPE Aruba Networking access points and mobility controllers.
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unknown ip's popping up in user-table

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  • 1.  unknown ip's popping up in user-table

    Posted Aug 07, 2014 06:50 AM

    Hi,

     

    when i view the user-table on a controller, i see ip addresses popping up  which are not within our network. Alongside is then their address (in 192.168 range) they get from our internal dhcp server. 

     

    (WIFI-BE-DI-004) # show user-table | include 90:b9:31:d4:94:ee
    78.22.43.27 90:b9:31:d4:94:ee authenticated 00:04:12 AP-BE-DI-023 Wireless mgmt/d8:c7:c8:6a:19:11/g-HT mgmt-aaa_prof tunnel iPad
    192.168.103.90 90:b9:31:d4:94:ee authenticated 00:04:12 AP-BE-DI-023 Wireless mgmt/d8:c7:c8:6a:19:11/g-HT mgmt-aaa_prof tunnel iPad

     

    Where could these come from?



  • 2.  RE: unknown ip's popping up in user-table

    EMPLOYEE
    Posted Aug 07, 2014 06:56 AM

    They could come from:

     

    - "leakage" of WAN addresses of mobile devices through the WLAN interface

    - "leakage" of VMWARE addresses through the WLAN interface

    - static ip addresses on hosts

     

    You can use "enforce-dhcp" in the AAA profile so that the controller will only allow ip addresses that were obtained through DHCP in the controller:  https://arubanetworkskb.secure.force.com/pkb/articles/HowTo/What-does-enforce-dhcp-option-in-aaa-profile-do