tcpdump mailing list archives

Re: Reserving a libpcap DLT value


From: Guy Harris <gharris () sonic net>
Date: Wed, 9 Oct 2002 00:55:36 -0700

On Wed, Oct 09, 2002 at 08:50:03AM +0200, Hannes Gredler wrote:
ok now i get it; - IMHO you should not attempt to change the generic packetheader;
perhaps the easiest way [and to fix that one and for all for the future is to create a
vendor_private DLT type that follows a TLV orientation and hence
easy extensible without coordination efforts;
with "private" i do not necessarily mean "closed" but extensible; one of
the flaws of libpcap format is that it is not extensible i.e. depends
on wellknown types;

Which means what's really desired is not a vendor-private DLT_ type but
a second generation of libpcap format - which is orthogonal to the
Ethereal-specific stuff Kent wants.  The extensions could be useful even
for *existing* DLT_ types.
-
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