---- On Fri, 13 Jul 2018 18:00:03 +0100 Francois-Xavier Le Bail 
<devel.fx.leb...@orange.fr> wrote ---- 
 > Hello,
 > 
 > In http://www.tcpdump.org/linktypes/LINKTYPE_LINUX_SLL.html and
 > http://www.tcpdump.org/linktypes/LINKTYPE_LINUX_SLL2.html, there is:
 > 
 > "If there are more than 8 bytes, only the first 8 bytes are present, and if 
 > there are fewer than 8
 > bytes, there are padding bytes after the address to pad the field to 8 
 > bytes."
 > 
 > Does anyone know why the 8 bytes limit ?

My guess is it is because of the 16 byte default limit on the header length, as 
Guy mentioned a couple days ago.

 > Should we add that the padding is done with '\0' bytes ?

As far as encodings typically go, if the padding bytes are always discarded, it 
does not make difference. But it will not hurt to say the customary "MBZ".

-- 
    Denis Ovsienko


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