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Address type in Reported messages?

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  • 1.  Address type in Reported messages?

    Posted Apr 15, 2023 11:17 AM

    Hi,

    A BleData message includes a MAC address as well as the address type, which comes from the TxAdv/RxAdv field of the PDU.  You see this decoded as a string named MacAddrType.

    Beacons come through as a     Reported message.  This type includes the MAC but not the TxAdv/RxAdv field so it's not possible to tell the address type.

    To work around this, I'm keeping my own cache of addresses seen in raw (BleData) messages and then when I get a beacon I do a lookup.  This is not, however, safe, as I believe you could have the same address twice, one public and the other private/random.  It's improbable but I think it could happen.

    Update: this doesn't actually work, either, as you don't seem to get a BleData message for advertisements that were interpreted.

    What I really want is to be able to get that TxAdv field from the PDU in a Reported message.  Is this possible?

    --Chris



    This differs from a raw advertisement report, which is go type     aruba_telemetry.BleData.   That message type gives you an address type as one of its fields.










  • 2.  RE: Address type in Reported messages?

    EMPLOYEE
    Posted Apr 28, 2023 04:52 AM

    I think you can determine the address type yourself, which probably is what happens in the AP in a similar way. I found this reference, that has a table, explains there is required additional information, but if you check the vendor ID there is a very high probability to see if you have a public or private address.
    The way how telemetry and bleData are processed are different, as that for telemetry the AP keeps a table and periodically sends out a summary of that. There probably is no store for the public/private bit there, which you may request as a feature request through Aruba Innovation Zone which is available to Partners and Aruba employees.



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

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    Original Message