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Home > Success Center > Network Performance Monitor (NPM) > NPM - Knowledgebase Articles > SNMPv3 authentication failed/ACL

SNMPv3 authentication failed/ACL

Created by Carlos Vigier, last modified by Eric Bryant on Feb 11, 2019

Views: 624 Votes: 1 Revisions: 6

Overview

Failure when adding a node with SNMPv3.

SNMP Walk on SNMPv3 devices is also failing.

 

Environment

All NPM versions

Cause 

The Access List (ACL) for network devices is not updated with the new IP address/es.

Resolution

  1. Verify that the access list for the network devices has all the updated IP addresses. 
    Note: If the IP address is not updated, you will not be able to authenticate SNMPv3 or execute an SNMP Walk.
  2. Update the Access Lists (ACL).
  3. Add Node and do a test.
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