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  • 1.  CX external-storage

    Posted Sep 04, 2025 05:39 PM

    Trying to get external storage setup so I can save DHCP snooping data to it.

    Running on a CX 6100 with 10.13.1120

    I can't seem to get the mount connected.  Not even showing logs on the firewall.

    Any suggestions?  Anyone willing to share a config?

    Is there any future plans to allow tftp as a destination?

    external-storage DHCPDB
       address 10.82.101.101
       username MTS\sa-dhcpsnoop
       password ciphertext AQBapQrJ+AlqWPOo.......UJB0TbG
       type smb
       directory DHCPDB
       enable

    LAB-6100P12G-1# sh external-storage

    ---------------------------------------------------------------------------------------------------
    Name             Address         VRF        Username         Type         Directory      State
    ---------------------------------------------------------------------------------------------------
    DHCPDB           10.82.101.101   default    MTS\sa-dhcpsnoop SMB          DHCPDB         internal_error

    external_storage[2951]: Event|7801|LOG_ERR|AMM|1/1|Share DHCPDB mount failure



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


  • 2.  RE: CX external-storage

    Posted Sep 09, 2025 05:43 AM

    I tried in my lab, and with a \ in the username, I see the same error. Please try username sa-dhcpsnoop (without the domain), or sa-dhcpsnoop@mts.intern, if the domain suffix for the MTS domain is mts.intern.

    For roadmap, future, feature requests, you should work with your local HPE Aruba Networking Sales team.



    ------------------------------
    Herman Robers
    ------------------------
    If you have urgent issues, always contact your HPE Aruba Networking partner, distributor, or Aruba TAC Support. Check https://www.arubanetworks.com/support-services/contact-support/ for how to contact HPE Aruba Networking TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or HPE Aruba Networking.

    In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
    ------------------------------



  • 3.  RE: CX external-storage

    Posted Sep 09, 2025 12:37 PM

    I have tried with MTS\SA-DHCPsnoop and SA-DHCPsnoop@mts.lab for username.  Then also with a local 'dhcplocal' account

    I am not even seeing failed logins on the windows server.

    I even moved a VM into the same subnet so there should be no firewall issues.

    Still getting Share DHCPDB mount failure

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

    Original Message


  • 4.  RE: CX external-storage
    Best Answer

    Posted Sep 11, 2025 10:20 AM

    I just tried, and one thing seems to be that the directory needs to start with a /

    What may help in finding the issue is to enable debugging:

    # debug externalstorage

    Then disable + enable your external storage server:

    # external-storage DHCPDB

           disable

           enable

    Then check the debug logs:

    # show debug buffer reverse

    For me it 'glued' the IP and directory into one part, invalidating the URL. With the debug info, I'd think you probably can find the solution.



    ------------------------------
    Herman Robers
    ------------------------
    If you have urgent issues, always contact your HPE Aruba Networking partner, distributor, or Aruba TAC Support. Check https://www.arubanetworks.com/support-services/contact-support/ for how to contact HPE Aruba Networking TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or HPE Aruba Networking.

    In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
    ------------------------------

    Original Message


  • 5.  RE: CX external-storage

    Posted Sep 11, 2025 10:46 AM

    Thank you.  The debug helped.  

    Here is the working code:

    external-storage DHCPDB
       address 10.82.101.101
       username sa-dhcpsnoop@mts.lab
       password ciphertext AQBapV...1jYOGH
       type smb
       directory /DHCPDB
       enable

    dhcpv4-snooping external-storage volume DHCPDB file LAB-6100P12G-1.DB

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

    Original Message


  • 6.  RE: CX external-storage

    Posted Sep 11, 2025 10:59 AM

    hello,

    If error logs are not being generated, there may be an issue with the VRF settings. Upon checking, it appears that the VRF configuration is set to the default setting. Could it be the VRF mgmt definition? Can you check the definitions here?

    In the definition under External-storage DHCPDB, the username field is set to = MTS\sa-dhcpsnoop 
    Since the DOMAIN\user format requires an escape character on most devices, it should be written as MTS\\sa-dhcpsnoop. A single backslash is sometimes interpreted as an "escape" in some CLIs, and the server sees an "incorrect user".

    However, you are not even receiving error messages, so could you check your VRF definition?

    You can also perform a quick test with the following commands:
    ping vrf default x.x.x.x
    ping vrf mgmt x.x.x.x
    show ip route vrf default | inc x.x.x.x

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

    Original Message


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