Re: Request for testing of HP PJL service probe

[David Fifield <david () bamsoftware com>]

On Mon, Oct 12, 2009 at 11:18:52PM -0500, Vijay Sankar wrote:
> Good day,
>
> I did a regular ./configure, gmake, and sudo gmake install on OpenBSD  
> 4.5 -stable.
>
> .
> .
> .
> running install_data
> running install_egg_info
> NMAP SUCCESSFULLY INSTALLED
>
> Tried the following against a Brother 5250N Printer
>
> server11$ nmap --allports --datadir . -PS9100-9107 -sV -p 9100-9107  
> 10.0.0.51
>
> Starting Nmap 5.00 ( http://nmap.org ) at 2009-10-12 22:56 CDT
> Interesting ports on printer1.sankars.local (10.0.0.51):
> PORT     STATE  SERVICE    VERSION
> 9100/tcp open   jetdirect?
> 9101/tcp closed jetdirect
> 9102/tcp closed jetdirect
> 9103/tcp closed jetdirect
> 9104/tcp closed jetdirect
> 9105/tcp closed jetdirect
> 9106/tcp closed jetdirect
> 9107/tcp closed jetdirect
>
> Service detection performed. Please report any incorrect results at  
> http://nmap.org/submit/ .
> Nmap done: 1 IP address (1 host up) scanned in 122.89 seconds
>
> After the scan, the printer started printing pages -- most of the pages  
> have some gibberish, but some are blank. I turned off the printer and  
> restarted it and then was able to send real print jobs.

You have to do this with a more recent version than 5.00--the special
PJL service probe was only added with r15334 on August 27, 2009. There's
a good chance it will work against this printer.

> I tried the same against an HP OfficeJet Pro 7780 printer and got the  
> following results.
>
> server11$ nmap --allports --datadir . -PS9100-9107 -sV -p 9100-9107  
> 10.0.0.56
>
> Starting Nmap 5.00 ( http://nmap.org ) at 2009-10-12 23:00 CDT
> Note: Host seems down. If it is really up, but blocking our ping probes,  
> try -PN
> Nmap done: 1 IP address (0 hosts up) scanned in 3.08 seconds
>
> The printer was up during this time and I am not sure why the scan is  
> not working (pings etc. work)

If you port scan it, are any of the ports in the range 9100-9107 open?
Maybe that printer doesn't support this particular protocol.

David Fifield

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