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Re: Error
From: Djalal Harouni <tixxdz () opendz org>
Date: Sat, 19 Nov 2011 17:44:13 +0100

On Thu, Nov 17, 2011 at 03:18:00PM +1100, David Coceancig wrote:

Recently we have had some PICA VITA II   printers  which when do a nmap query on.

The ports
515 and

Show as open on the first scan.

On subsequent scans the port comes up as "filtered"
These scans are done from the same subnet, so I can only suggest that by querying the port, on the printer, that this 
query has some how crashed the print server application running on the printer.
Turning the printer  off and back on, reset the printer so ports were open again.
This was done from various versions of nmap.
Last version used was 4.11 running on Redhat Linux

The printer is model
Pica Vita II  104/8
Software Version V1.55 Build 2006
Using the '--packet-trace' switch and a high debug level will show you
the packets of your Nmap scan.

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