SNMPv3 has added two new features to the previous version: security and remote
administration. SNMPv3 allows a manager to choose one or more levels of security
when accessing an agent. Different aspects of security can be configured by the manager
to allow message authentication, confidentiality, and integrity.
SNMPv3 also allows remote configuration of security aspects without requiring
the administrator to actually be at the place where the device is located.