Re: [PATCH] nmap-service-probes: Misc database corrections, printer additions

[Brandon Enright <bmenrigh () ucsd edu>]

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On Fri, 27 Feb 2009 10:39:33 -0800 or thereabouts Aaron Leininger
<rilian4 () hotmail com> wrote:

> > If anyone out there can point me to a protocol description of
> > JetDirect/IPDS/PPDS or a packet capture of some of the control
> > characters of a print job I'd be happy to test things out.
>
> Attached is a pcap file captured from printing a simple 2 line text
> file from windows notepad. Hopefully this will help. I wasn't able to
> find much online about a protocol description of JetDirect. 
>
> -Aaron

Hey Aaron,

Thanks for providing this capture.  It gives me a better idea of what
the protocol looks like.

Unfortunately your machine only sends data, it never gets anything back
from the printer.  Service fingerprinting needs to get some set of
bytes back from a probe to do matching.

I've read that JetDirect can be used to do things like check printer
status, check paper and ink levels, etc.  Do you have a utility (HP
provided?) that will tell you the status of the printer?  If you could
capture that I think it would go a long way towards improving our
printer detection.

Brandon

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