FORTIOS-300-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsFORTIOS-300-MIB

Organization: Fortinet Technologies, Inc.

Last Updated: 2008-06-19

Category: Domain: Security, Vendor: Fortinet

Description: Fortinet FortiOS version 3.00 SNMP MIB providing firewall policy, interface, session, and routing management objects for legacy FortiGate appliances.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

What Is FORTIOS-300-MIB?

FORTIOS-300-MIB is Fortinet's SNMP module for FortiOS version 3.00, the operating system running on legacy FortiGate firewall/UTM appliances. It exposes firewall policy, network interface, session, and routing management objects reflecting the feature set of that early FortiOS release. It supports monitoring both hardware and software status of the appliance, including interface operational state, active session counts, and routing table contents, which together indicate whether the firewall is processing traffic normally or under load. It is built on standard SNMP interface and routing conventions of its era and is closely tied to the FortiOS software version it targets, meaning it is superseded by newer Fortinet MIBs on current firmware. It would typically be found in legacy deployments still running very old FortiGate appliances that have not been upgraded past FortiOS 3.x. Engineers can download the FORTIOS-300-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in FORTIOS-300-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

  • Legacy Fortinet FortiGate firewall/UTM appliance (FortiOS 3.00)

Monitoring Examples

No sample objects were captured for this entry, so specific table names cannot be cited with confidence; based on the description, a plausible scenario is an administrator polling interface and session objects to confirm a FortiGate appliance's firewall policies are being enforced and that active session counts remain within expected bounds. Given its legacy status, this MIB would mainly appear in older network audits rather than current deployments.

What Can Be Monitored

  • firewall policy status
  • network interface state
  • active session counts
  • routing table entries
Imported Objects

From IF-MIB

ifEntryOBJECT-TYPE
ifIndexOBJECT-TYPE

From INET-ADDRESS-MIB

InetPortNumber

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-MIB

sysNameOBJECT-TYPE

From SNMPv2-SMI

Counter32
Counter64
Gauge32
Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
TimeTicks
enterprises

From SNMPv2-TC

DisplayString
TEXTUAL-CONVENTION

How to Use in IPNetwork Monitor

Example using fnApHTTPUpTime OID:

Select a Fortinet FortiGate firewall/UTM appliance (legacy FortiOS 3.00) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type fnApHTTPUpTime into the Find box to locate it in the OID tree, then select it and click OK. It reports hTTP proxy up-time (in seconds). On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the value is unexpectedly low (e.g. under 10 minutes), since that indicates a recent, possibly unplanned, reboot or restart. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

Fortinet network device management including statistics, VPN, and application performance monitoring.

Start monitoring Fortinet FortiGate firewall/UTM appliance (legacy FortiOS 3.00) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download FORTIOS-300-MIB