Before someone else tells us...
You can already display-filter on bad checksums, both for IP and TCP. I
don't imagine that capture filtering will ever be up to the job.
The packet summary idea is good, though.
--
Richard Urwin, Private
"No 9000 series computer has ever made a mitsake or corrubiteddatatato."
-----Original Message-----
From: Richard Urwin [mailto:RUrwin@xxxxxxxxxxxxxx]
Sent: 14 October 2002 09:25
To: Richard Urwin; 'Davidson, Stuart'; ethereal-users@xxxxxxxxxxxx
Subject: RE: [Ethereal-users] incorrect tcp checksums
> I have also seen this (w2000sp2) and it can be quite annoying since
TCP-desegmentation
> fails to work for packets with TCP-checksum error (but fortunately
this check can be
> turned off in Ethereal). Also there was IP-checksum errors.
Yes, I get them too.
>> I assumed this was due to some lower level
>> software adding the correct checksums after Ethereal has grabbed the
packet.
> This could make sense but then it would be nice if Ethereal could
handle this
> in an "intuitive way", e.g. by "writing the correct checksum" and add
a "packet note"
> about that these checksums were made by Ethereal.
> This could be enabled specific for each platform.
> Btw. It could be nice if checksum errors (or other errors) also could
be shown in the
> high level packet view (to get attention) - and if it was possible to
search/filter for
> erronous packets.
> Hmmm - I know I should contribute with some code instead of just
writing mails ;-)
It sounds like a two-line fix to me. It would make an easy introduction
to Ethereal for somebody...
Not me, I'm unable to build Ethereal at the moment; see elsewhere on the
dev list.
--
Richard Urwin, Private
"No 9000 series computer has ever made a mitsake or corrubiteddatatato."
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