Unable to use discovery wizard to snmp discover a device using AES-256.

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

Discover a SHA-256 and AES snmp device A, it is working.

Discover a SHA-256 and AES-256 snmp device B, the discover_agent log say "snmpAuthentication is invalid".

Manually creating profile in snmpcollector for device B, the profile created successfully and polling data.

Environment

Environment : 23.4CU4/23.4CU5

probe: discovery_server

Resolution

discovery_server-23.4.4.3.zip in KB attachment is discovery_server probe fix for UIM 23.4 CU4

discovery_server-23.4.5.1.zip in KB attachment is discovery_server probe fix for UIM 23.4 CU5 

Also the code changes are merged into upcoming UIM 23.4 CU7 branch of Discovery. 

The change includes handling of AES-256 type interpretation in discovery_agent.