Trusted Managers

By default, the SNMP agent accepts Get and Set requests from any IP address, as long as the correct community string is used in the request. Security can be enhanced implementing Trusted Managers. A Trusted Manager is an IP address from which the SNMP agent accepts and processes Get and Set requests. An element management can be used to configure up to five Trusted Managers.

The concept of Trusted Managers is considered to be a weak form of security and therefore is not a required part of SNMPv3 security, which uses authentication and privacy. Trusted Managers for the devices' SNMP agent are applicable only for SNMPv2c users. An exception to this is when the community string is not the default string (‘public’/’private’), at which time Trusted Managers are applicable for SNMPV2c users alongside SNMPv3 users.