[Guy Harris <guy@xxxxxxxxxxxx>]

On Sep 3, 2009, at 9:39 PM, Steve Evans wrote:

> I'm looking for a display filter that will count the number of  
> duplicate packets.

	1) What is your definition of a "duplicate packet"?  Same frame  
content?  Same IP identifier for IP packets?

	2) Display filters do not have any state - they just test various  
fields in the packet or calculated by dissectors for the packet - and  
don't count things, so a display filter couldn't do this; another  
mechanism would have to be used.