I’ve reviewed the “DIGI-CM-MIB” file looking for information on how to pull a Digi CM’s serial number via SNMP. I’m not seeing any OID which covers this in that MIB file.
What OID should I use to determine a Digi CM’s serial number via SNMP?
To my knowlege, the serial number is not obtainable via SNMP and can only be located on the sticker affixed to the unit.
Yeah, that’s sort of my conclusion, too. It is kind of disappointing because if you ssh to the Digi CM and run configmenu, you’ll see the serial displayed in the menu screens. 
let me know too…
omair