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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 Rodim Suarez_ret on Mar 30, 2017

Views: 539 Votes: 1 Revisions: 5

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 have all the updated IP addresses. 
    Note: If the IP address are not updated, you will not be able to authenticate SNMPv3 or execute an SNMP Walk.
  2. Updatethe Access Lists (ACL).
  3. Add Node and do a test.
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