About SNMP settings
Settings for configuring the SNMP contact and trap receiver to allow events to be reported to an SNMP entity are under Administration > System Settings: SNMP Basic.
SNMP Basic page

Traps are messages sent by an SNMP entity that indicate the occurrence of an event. The default system configuration doesn’t include SNMP traps.
RiOS provides support for these SNMP versions:
• Version 1
• Version 2c
• SNMP Version 3, which provides authentication through the User-based Security Model (USM).
• View-Based Access Control Mechanism (VACM), which provides richer access control.
• SNMP Version 3 authentication using AES 128 and DES encryption privacy.
You set the default community string on the SNMP Basic page.