How to configure SNMPv3 on Cisco IOS Router

Hello Matthew

The “noAuthNoPriv” option, even though it does say “noAuth” still requires the use of a username. The noAuth portion of the name actually indicates that SNMP messages are not authenticated. This means that the message’s integrity and the identity of the sender are not verified, but a username is still necessary. And the “NoPriv” portion indeed means that there is no encryption as you state. Does that make sense?

I hope this has been helpful!


is from SNMP (Simple Network Management Protocol) security model and it stands for “No Authentication, No Privacy”. This means that the SNMP messages are sent in plain text and no authentication is required to access the SNMP objects. It’s the least secure mode and is generally not recommended for most SNMP implementations due to its potential security vulnerabilities.