Enabling MIB file with Net-SNMP

Question

I'm using Net-SNMP 5.5.0-2.x64 on Windows 10 1803. I'm trying to get SNMP values from a Ricoh printer. I've downloaded Printer-MIB and placed it in my C:\usr\share\snmp\mibs folder. I also downloaded and placed IANA-CHARSET-MIB and IANA-PRINTER-MIB. I also double checked snmp.conf to make sure they're in the right mibdirs folder.

I'm trying to access the value for black toner. I found some OIDs here, which I was trying to use for my example.

When I try to access the value for black toner:

snmpwalk -v 1 -c public -m Printer-MIB x.x.x.x 1.3.6.1.4.1.367.3.2.1.2.24.1.1.5.1

I get

SNMPv2-SMI::enterprises.367.3.2.1.2.24.1.1.5.1 = INTEGER: 80

I get the same result when I try -m ALL as well. Also if I try added Printer-MIB::printmib at the end, I get the same exact message. When I try the command:

snmptranslate -IR -Td Printer-MIB::prtMarkerSuppliesLevel.1.1

I get

Printer-MIB::prtMarkerSuppliesLevel.1.1
prtMarkerSuppliesLevel OBJECT-TYPE
  -- FROM       Printer-MIB
  SYNTAX        Integer32 (-3..2147483647)
  MAX-ACCESS    read-write
  STATUS        current
  DESCRIPTION   "The current level if this supply is a container; the remaining
        space if this supply is a receptacle.  If this supply
        container/receptacle can reliably sense this value, the value
        is reported by the printer and is read-only; otherwise, the
        value may be written (by a Remote Control Panel or a Management
        Application).  The value (-1) means other and specifically
        indicates that the sub-unit places no restrictions on this
        parameter.  The value (-2) means unknown.  A value of (-3) means
        that the printer knows that there is some supply/remaining
        space, respectively."
::= { iso(1) org(3) dod(6) internet(1) mgmt(2) mib-2(1) printmib(43) prtMarkerSupplies(11) prtMarkerSuppliesTable(1) prtMarkerSuppliesEntry(1) prtMarkerSuppliesLevel(9) 1 1 }

So doesn't that mean SNMP sees the file and can parse it?

Edit:

I was able to get the MIB file to work, but the OID values are confusing me. I ran snmpwalk -v 1 -c public x.x.x.x Printer-MIB::printmib and now the values with their MIB tags print. However, when I come across the value for black ink, the OID doesn't match the one I had found online, but they return the same value.

C:\usr\bin>snmpwalk -v 1 -c public x.x.x.x Printer-MIB::prtMarkerSuppliesLevel.1.1
Printer-MIB::prtMarkerSuppliesLevel.1.1 = INTEGER: 80

and

C:\usr\bin>snmpwalk -v 1 -c public x.x.x.x 1.3.6.1.4.1.367.3.2.1.2.24.1.1.5.1 Printer-MIB::printmib
SNMPv2-SMI::enterprises.367.3.2.1.2.24.1.1.5.1 = INTEGER: 80

If I run snmptranslate, I get a completely different OID than the one I had been using before:

C:\usr\bin>snmptranslate -On  Printer-MIB::prtMarkerSuppliesLevel.1.1
.1.3.6.1.2.1.43.11.1.1.9.1.1

Not sure why the OID I found online works to retrieve the value, but not to work with the MIB file. Some sort of mix between proprietary and public MIB data?

Observe the OID listed in that definition. It's completely different from the one you're requesting in your snmpwalk. Why did you choose 1.3.6.1.4.1.367.3.2.1.2.24.1.1.5.1? — Lightness Races in Orbit
@LightnessRacesinOrbit Sorry, I had used that value in snmpwalk just to show that net-snmp could at least read the file. I updated it to match the data value I was trying to get. However, in doing this, I found that there was an OID mismatch between the OID I found online, and the OID I eventually found in snmpwalk. Not sure why, but I updated the original post. — Emilio Garcia

Gambit Support Gambit Support · Accepted Answer · 2018-12-05T15:07:21

0

votes

Try the right OID

snmpwalk ... 1.3.6.1.2.1.43.5.1.1.16

Enabling MIB file with Net-SNMP

Edit:

1 Answers