SNMP security levels

Last Updated : Nov 06, 2012 |

  • NoAuthNoPriv. This is the lowest level of SNMPv3 security. No MAC is provided with the message, and no encryption is performed. This method maintains the same security level as SNMPv1, but provides a method for limiting the access rights of the user.

  • AuthNoPriv. User authentication is performed based on MD5 or SHA algorithms. The message is sent with an HMAC that is calculated with the user key. The data part is sent unencrypted.

  • AuthPriv. User authentication is performed based on MD5 or SHA algorithms. The message is sent in encrypted MAC that is calculated with the user key, and the data part is sent with DES56 encryption using the user key.