["Guy Harris" <gharris@xxxxxxxxx>]

Douglas F.Calvert said:
>   I am diagnosing an odd network problem and I have been using ethereal
> filters a lot lately. Is their a  predefined filter that just matches
> bad packets that I am not aware of?

Define "bad".  A packet might be "bad" if it has a bad checksum at some
network layer, or it might be "bad" because it's malformed in some fashion
(too long, too short, invalid packet type code, etc.), or it might be
"bad" because it makes a request that gets an error reply, or....