Re: new DLT values

["Gianluca Varenni" <gianluca.varenni () cacetech com>]

Hannes,

please contact me (gianluca.varenniATcacetech.com) and I'll give you info on 
how we save CAN packets with that DLT_

Have a nice day
GV


----- Original Message ----- 
From: "Guy Harris" <guy () alum mit edu>
To: <tcpdump-workers () lists tcpdump org>
Sent: Monday, February 18, 2008 12:37 PM
Subject: Re: [tcpdump-workers] new DLT values


> Hannes Kälber wrote:
>
> > Since we are capturing automotive busses, such as CAN, Flexray, Most and
> >  LIN, I suggest that these busses get there own DLTs.
> >
> > I suggest the names
> > DLT_FLEXRAY
> > DLT_MOST
> > DLT_LIN
>
> I've assigned those:
>
> DLT_FLEXRAY 210
> DLT_MOST 211
> DLT_LIN 212
>
> If you can indicate what the packet formats would be (assuming it's not 
> obvious from the protocol specifications for those buses - for example, if 
> you add pseudo-headers giving information not available from the raw 
> packet data), that would be helpful, so we don't have different packet 
> formats using the same DLT_ values.
>
> > DLT_X2E_SERIAL
>
> So what's the description of that one?  Presumably from the "X2E" it's 
> defined by your company, so there's no reason to expect that anybody else 
> would have a reason to use it incompatibly.
>
> > As there is already a DLT named DLT_CAN20B, there is no need for another
> > CAN DLT.
>
> You should probably ask Gianluca Varenni whether the format they use at 
> CACE Technologies matches the format you want to use, if you haven't done 
> so already.
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