tcpdump mailing list archives

Re: Building IPv6 code in tcpdump on systems without


From: Darren Reed <darrenr () reed wattle id au>
Date: Wed, 21 Jul 2004 22:19:28 +1000 (EST)

In some email I received from John Hawkinson, sie wrote:
Guy Harris <guy () alum mit edu> wrote on Tue, 20 Jul 2004
at 23:21:17 -0700 in <20040720232117.E251 () quadrajet sonic net>:

    1) it defines DEFAULT_SNAPLEN as 96 unconditionally, rather
       than, as is done now, as 68 if INET6 isn't defined and as 96
       if it is defined;

The first seems OK to me, although some might find it a surprise.  You
can always use "-s 68" if you want 68 bytes.

Won't this have unfortunate effects on performance (and possibly storage,
but that's less concerning) for some people in borderline situations?

Why don't you measure it and tell us all exactly how bad the degradation is ?

Darren
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