Printer Discovery - No Model Information or Serial Number - SNMPv3

[Will O]

I have a number of HP printers configured with SNMPv3 that I can SNMP walk without error using our ServiceNow credentials.  However, it appears information like Serial Number and Model are not always where I think Discovery is looking (based on ECC Queue logs).  Out of the box SNMP Discovery identifies these printers with Manufacturer of HP, while also getting Name and IP Address, but cannot identify Model information or Serial Number. 

Has anyone needed to create new OIDs for HP Printer Discovery?

Looking for additional MIBs to load into my SNMP walk tool always seems dubious because of the sites returned in a search.  Do you know of any reputable sources to locate MIBs?  

Thank you!

[Rahul Priyadars]

Do you know of any reputable sources to locate MIBs? ??---> In Service Now or ??

In Service Now- https://XYZ.service-now.com/now/nav/ui/classic/params/target/ecc_agent_mib_list.do%3Fsysparm_clear_stack%3Dtrue

Regards

RP

[Will O]

Thank you, Rahul.  I am trying to find MIB files that we do not currently have in ServiceNow. I could either add the MIB to ServiceNow or use the MIB to find the correct OIDs for these HP Printers?  

I have Printers that are reporting back Manufacturer of Hewlett-Packard but it cannot report back Serial Number or Model information.  I have plenty of other Hewlett-Packard Printers that discover just fine.  For some reason, these other Hewlett-Packard Printers only report partial information.  I confirmed our Discovery credentials have access. 

[jeffreyawel]

I have found that HP has the Futuresmart MIB that is supposed to have the OIDs for the models > 5000.  However, the MIB from HP does not load in ServiceNow due to multiple errors in the file.  I eventually landed up removing entire statements from the file in order for it to load.  Now I'm pulling serial and model, albeit in HEX.  Still a work in progress.

[Jeffrey Welch]

Adding to my comments about the HP Futuresmart MIB, I was able to use an EVAL script to remove the occurrences of ":" in the hex value, and then slice off the first 4 junk characters - fde8.  I found a javascript function to convert hex to ascii, and had to then use the trim() function to remove whitespace and was successful in pulling and transforming the serial numbers.