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TechTalk: Configuring SNMP on a Fortinet 100D firewall

What is a firewall?

A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules. A firewall sits between two networks establishes a barrier between a trusted network and an untrusted network, such as the Internet.

As the firewall is a network device, it can be monitored via SNMP.

SNMP on FortiGate 100D

In this article, I will go through the steps to configure a Fortinet FortiGate 100D Firewall for SNMP monitoring

To configure SNMP on a FortiGate device, you need your login credentials to FortiGate’s graphical user interface.

  1. Navigate to System > SNMP.
  2. Click Enable the SNMP Agent.
  3. Optional: Add a description, location, and contact.
  4. Click Apply.
  5. Navigate to Network > Interface > Internal > Edit.
  6. Click the box next to SNMP, then Apply to save the changes.

To enable SNMP v1/2c:
  1. In the SNMP v1/v2 section, select Create New.
  2. Choose a Community Name.
  3. Under Hosts, click Add.
  4. Enter the IP address of your Collector or allow SNMP from specified or any hosts. For example: 10.0.1.250/255.255.255.255 or 0.0.0.0/0.0.0.0.
  5. Select Any as the Interface.
  6. Make sure SNMP queries are assigned to port 161 and set to Enable.
  7. Click OK.
To enable SNMP v3:

  1. In the SNMP v3 section, select Create New.
  2. Set your preferred User Name and Auth level.
  3. Ensure Enable Query is checked and the port is set to 161.
  4. Click OK.
SNMP is now configured on your FortiGate device

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