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. Navigate to System > SNMP. Click Enable the SNMP Agent . Optional : Add a description, location, and contact. Click Apply . Navigate to Network > Interface > Internal > Edit . Click the box next to SNMP, then Apply to save the changes. To enable SNMP v1/2c: In the SNMP v1/v2 section, select Create New . Choose a Community Name. Under Hosts, click Add . Enter the IP addres...