I have a snmp bug with RB750GL and firmware v6.39.2 and routerboard firmaware 3.33
snmpget -c public -v 1 192.168.11.189 .1.3.6.1.4.1.14988.1.1.3.10.0
Error in packet
Reason: (noSuchName) There is no such variable name in this MIB.
Failed object: SNMPv2-SMI::enterprises.14988.1.1.3.10.0