tcpdump mailing list archives

Re: DLTs for Z-Wave


From: Michael Richardson <mcr () sandelman ca>
Date: Wed, 10 Sep 2014 16:11:56 -0400


Guy Harris <guy () alum mit edu> wrote:
    >> It would be reasonable to anticipate additional characteristics that
    >> could make their way into a capture file for received traffic, such as
    >> RSSI and noise levels, antenna selection, etc.  For the requested link
    >> types, the packet will start with the MAC Layer data (the 4-byte
    >> HomeID comes first), including an FCS, with no additional data.  For
    >> captures that require RSSI or additional metadata to be associated
    >> with the packet, RadioTap or PPI could be used similar to what is
    >> already done for Bluetooth Low Energy and other wireless protocols.

    > So presumably new LINKTYPE_/DLT_ values will be requested for the
    > captures with metadata, once the format for the metadata is specified?

(and maybe we'll get to pcapng as default before then...)

-- 
]               Never tell me the odds!                 | ipv6 mesh networks [ 
]   Michael Richardson, Sandelman Software Works        | network architect  [ 
]     mcr () sandelman ca  http://www.sandelman.ca/        |   ruby on rails    [ 
        


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