define command {
    command_name            check_snmp_trap_passive
    command_line            /usr/lib/nagios/plugins/check_dummy $ARG1$ "$ARG2$"
}

define host {
    use                     linux-server
    host_name               web01.example.net
    alias                   Web server trap source
    address                 192.0.2.10
    active_checks_enabled   0
    passive_checks_enabled  1
}

define service {
    use                     generic-service
    host_name               web01.example.net
    service_description     SNMP Trap
    active_checks_enabled   0
    passive_checks_enabled  1
    check_command           check_snmp_trap_passive!0!Waiting for SNMP trap
    max_check_attempts      1
}