qtmib (graphical SNMP MIB Browser)

qtmib is an easy-to-use SNMP MIB Browser based on the Qt4 library. It is a
front-end for net-snmp, and it allows the user to query any SNMP-enabled
device. It implements SNMPv1 and SNMPv2c, and it is released under the
GPLv2 license.

qtmib supports a large number of MIBs out of the box. It currently tracks
the netdisco MIB archive. You can also install private MIBs by dropping
them in the ~/.config/qtmib/mibs directory.