Appendix C: Management Information Base (MIB)

The FortiDDoS-F SNMP agent supports a few management information blocks (MIBs).

Supported MIBs

MIB or RFC	Description
Fortinet Technologies Inc. Core MIB	This Fortinet Technologies Inc.-proprietary MIB enables your SNMP manager to query for system information and to receive traps that are common to multiple Fortinet Technologies Inc. devices.
FortiDDoS-F MIB	This Fortinet Technologies Inc.-proprietary MIB enables your SNMP manager to query for FortiDDoS-F-specific information and to receive FortiDDoS-F-specific traps. This includes all traffic statistics for data ports on FortiDDoS. FortiDDoS data ports do not have IP addresses, so do not conform to MIB II and must be polled with the FortiDDoS-F MIB. Management ports can use MIB II.
RFC 1213 (MIB II)	The FortiDDoS-F SNMP agent supports MIB II groups, except: There is no support for the EGP group from MIB II (RFC 1213, section 3.11 and 6.10). Protocol statistics returned for MIB II groups (IP, ICMP, TCP, UDP, and so on) do not accurately capture all FortiDDoS-F traffic activity. More accurate information can be obtained from the information reported by the FortiDDoS-F MIB.
RFC 2665 (Ethernet-like MIB)	The FortiDDoS-F SNMP agent supports “Ethernet-like MIB information,” except the dot3Tests and dot3Errors groups.
RFC 2863 (IF-MIB)	FortiDDoS-F SNMP uses the linkDown and linkUP traps from IF-MIB, RFC 2863, section 6.
RFC 3411	“An Architecture for Describing Simple Network Management Protocol (SNMP) Management Frameworks”
RFC 3414	Partial support for “User-based Security Model (USM).”

To communicate with the FortiDDoS-F SNMP agent, you must first compile these MIBs into your SNMP manager. If the standard MIBs used by the SNMP agent are already compiled into your SNMP manager, you do not have to compile them again. The FortiDDoS-F SNMP implementation is read-only.

To view a trap or query’s name, object identifier (OID), and description, open its MIB file in a plain text editor. All traps sent include the message, the FortiDDoS-F appliance’s serial number, and hostname.

You can obtain the Fortinet MIB files from the Fortinet Technologies Inc. Service & Support website in the same section where you download firmware images. Go to Fortinet Support site.