If you an error message similar to following in the extended debug in any of the SNMP-based auto-discoveries, please go to the appliance manager to generate an SNMP Walk, and send it to support@device42.com so we can add support for the device.

MIB search path: $HOME/.snmp/mibs:/usr/local/share/snmp/mibs
Cannot find module (HUAWEI-MIB): At line 1 in (none)
The HUAWEI-MIB did not load. See README for SNMP::Info::Layer3::Huawei
at /usr/local/netdisco/server_disc.pl line 264.
SnmpDiscovery ERROR: failed to execute, returncode=255

Resolution:

Login to appliance manager: http://docs.device42.com/device42-appliance-manager/device42-appliance-manager-login/ and select the "Generate SNMP Output" from the left. Once you click generate, you will download a walk file that can be sent to support.