This section describes how to set up your system to send and receive traps. It also describes the traps that you can use to receive change notification for logical domains (domains), as well as other traps that you can use.
The snmptrapd daemon does not automatically accept all incoming traps. Instead, the daemon must be configured with authorized SNMP v1 and v2c community strings, with SNMPv3 users, or both. Unauthorized traps or notifications are dropped. See the snmptrapd.conf(4) or snmptrapd.conf(5) man page.