Re: Building IPv6 code in tcpdump on systems without

[Darren Reed <darrenr () reed wattle id au>]

In some email I received from Guy Harris, sie wrote:
> I have some changes to support that.
>
> The main change is to add a "union h6addr" to "tcpdump-stdinc.h", along
> with defintions of IN6_IS_ADDR_UNSPECIFIED, AF_INET6, and NI_MAXHOST if
> they're not defined.
>
> Some side-effects of this:
>
>       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.

I agree with this.  96..plus pcap header size of 16 is 112.  Do you want
to push it out to 112, so with the pcap header size, brings it up to 128
bytes (normal length), fitting in evenly to most buffer sizes?

Oh wait, that's the "max" pcapture size so ignore that :)

Darren
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