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Home > Success Center > User Device Tracker (UDT) > UDT - Knowledgebase Articles > Error: <SNMP-3-AUTHFAIL: Authentication Failure for SNMP>

Error: <SNMP-3-AUTHFAIL: Authentication Failure for SNMP>

Created by Con Finucane, last modified by Nigel on Sep 25, 2018

Views: 2,031 Votes: 1 Revisions: 6

Overview

This article describes the issue when UDT polls Cisco Switches and you receive the following error: 

<SNMP-3-AUTHFAIL: Authentication Failure for SNMP >

Environment

  • All versions of UDT
  • Layer 2 device being polled for Layer 3 statistics and VRF context polling when these devices do not support the technology

Resolution

Disable VRF and Layer 3 polling using the Orion Web Console

  1. On the Orion Console, go to Settings > Manage nodes.
  2. Find the node, highlight it, and then select edit.
  3. Browse to the bottom of the page and untick the box next to Poll Layer 3 data from device.
  4. Tick the box next to Disable VRF context polling.

    00102238_1.PNG

 

Perform the following using SQL commands from the database (NPM 11.5.x only):

  1. Find the Nodeid:
    1. Start > All Programs > Solarwinds Orion > Advanced Features > Database Manager > Add Default Server>

      Expand the NPM Database (default) NetPerfmon.

    2. Right-click the database name > Select New Query.

    3. Select nodeid from nodesdata where caption name = <NodeCaption>

               Where <Node Caption> is the node caption of the node you want to modify.

  1. Disable context polling:
    1. Right-click the database name > Select New Query.
    2. UPDATE UDT_NODECAPABILITY SET CONTEXTPOLLINGDISABLED=0 where nodeid = '<Nodeid>'

               where <NodeID> is the node id gathered earlier.

  1. Disable Layer 3 polling:
    1. UPDATE UDT_NODECAPABILITY SET ENABLED=0 WHERE CAPABILITY=3 and  nodeid = '<Nodeid>'

               where <NodeID> is the node id gathered earlier.

 

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