[LEGO <luis.ontanon@xxxxxxxxx>]

I reply to myself,

The packet you have is in fact gsm_a_dtap with a one byte header, 

On 8/3/05, LEGO <luis.ontanon@xxxxxxxxx> wrote:
> Francisco,
> 
> If you are "capturing" on the UE you may have:
>  IP over PPP  (R (GPRS))
>  DTAP over nothing (a GSM debug dump on the UE)
> 
> If the case is the second you should:
> +  generate a pcap file containing the payload and use one of the user
> DLTs (147->162).
>        text2pcap -l 147 input.txt output.pcap
> 
> + configure ethereal to decode as TCAP that DLT.
>     preferences->protocols->DLT User [ABCD]
>     DLT: the one choosen
>     payload: gsm_dtap
> 
> + open the generated file.
> 
> 
> Anders:
> AFAIK in GSM,  MAP is used in B, C, D, E, F and G interfaces ( may be
> even in the H but I do not know of an AuC not combined with the HLR ).
> 
> 
> I attached a simple GSM network diagram so he can indicate on which
> interface he's got the trace.
> 
> Luis
> 
> 
> 


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