Nmap bjnp-discover NSE Script

Script Overview

Script source code: https://github.com/nmap/nmap/tree/master/scripts/bjnp-discover.nse
Script categories: safe, discovery
Target service / protocol: udp
Target network port(s): 8611, 8612
List of CVEs: -

Script Description

The bjnp-discover.nse script retrieves printer or scanner information from a remote device supporting the BJNP protocol. The protocol is known to be supported by network based Canon devices.

Bjnp-discover NSE Script Arguments

The bjnp-discover.nse script does not have any arguments.

Bjnp-discover NSE Script Example Usage

Here's an example of how to use the bjnp-discover.nse script:

sudo nmap -sU -p 8611,8612 --script bjnp-discover <ip>

Bjnp-discover NSE Script Example Output

Here's a sample output from the bjnp-discover.nse script:

PORT     STATE SERVICE
8611/udp open  canon-bjnp1
| bjnp-discover:
|   Manufacturer: Canon
|   Model: MG5200 series
|   Description: Canon MG5200 series
|   Firmware version: 1.050
|_  Command: BJL,BJRaster3,BSCCe,NCCe,IVEC,IVECPLI
8612/udp open  canon-bjnp2
| bjnp-discover:
|   Manufacturer: Canon
|   Model: MG5200 series
|   Description: Canon MG5200 series
|_  Command: MultiPass 2.1,IVEC

Bjnp-discover NSE Script Example XML Output

There is no sample XML output for this module. However, by providing the -oX <file> option, Nmap will produce a XML output and save it in the file.xml file.

Author

• Patrik Karlsson

References

• https://nmap.org/nsedoc/scripts/bjnp-discover.html
• https://github.com/nmap/nmap/tree/master/scripts/bjnp-discover.nse

See Also

Visit Nmap NSE Library for more scripts.

The bjnp-discover.nse script may fail with the following error messages. Check for the possible causes by using the code snippets highlighted below found in the script source code. This can often times help in identifying the root cause of the problem.

Failed to connect to server

Here is a relevant code snippet related to the "Failed to connect to server" error message:

35:	portrule = shortport.portnumber({8611, 8612}, "udp")
36:	
37:	action = function(host, port)
38:	  local helper = bjnp.Helper:new(host, port)
39:	  if ( not(helper:connect()) ) then
40:	    return stdnse.format_output(false, "Failed to connect to server")
41:	  end
42:	  local status, attrs
43:	  if ( port.number == 8611 ) then
44:	    status, attrs = helper:getPrinterIdentity()
45:	  else