Graylog Illuminate is available for use with Graylog Operations and Graylog Security. Contact sales to learn more about obtaining Graylog Illuminate.

Fortinet's FortiGate is a next-generation firewall that covers both traditional and wireless traffic. The hardware-based firewall can function as an IPS and include SSL inspection and web filtering. This technology pack will process Fortigate event log messages, providing normalization and enrichment of common events of interest.


  • Fortigate running FortiOS Version 7.0 or later
  • Graylog Server with a valid Operations license, running Graylog version 4.2.5 or later
Warning: This spotlight requires a more recent version of Graylog than the other spotlights due to a change in how some of the extraction functions work. Fields will be improperly processed if using a version of Graylog Server earlier than version 4.2.5.

Not Supported

  • Sending Fortigate logs with the CEF format

Stream Configuration

This technology pack includes one stream:

  • “Illuminate: Fortigate Messages”

Hint: If this stream does not exist prior to the activation of this pack then it will be created and configured to route messages to this stream and the associated index set. There should not be any stream rules configured for this stream.

Index Set Configuration

This technology pack includes one index set definition:

  • “Fortinet Event Log Messages”

Hint: If this index set is already defined, then nothing will be changed. If this index set does not exist, then it will be created with retention settings of a daily rotation and 90 days of retention. These settings can be adjusted as required after installation.

Log Format Example

date=2021-06-22 time=14:32:46 devname="ABCD-EFG-HIK-LMN-202-87-35-206" devid="FGA20E5Q16027714" logid="0000000013" type="traffic" subtype="forward" level="notice" vd="root" eventtime=1624352568074022779 tz="+0530" srcip=x.x.x.x srcport=50198 srcintf="wan1" srcintfrole="wan" dstip= dstport=4510 dstintf="wan2" dstintfrole="wan" sessionid=2912907682 proto=6 action="close" policyid=32 policytype="policy" poluuid="5b3cd3ef-0fd0-51e7-1222-9c9e72bdfbba" service="4510" dstcountry="India" srccountry="India" trandisp="dnat" tranip= tranport=4510 duration=62 sentbyte=2049 rcvdbyte=2703 sentpkt=12 rcvdpkt=11 appcat="unscanned"


  • Configure Fortigate to transmit Syslog to your Graylog server Syslog input

What is Provided

  • Rules to normalize and enrich Fortigate log messages
  • A Fortigate Spotlight content pack

Fortigate Log Message Processing

The Illuminate processing of Fortigate log messages provides the following:

  • Field extraction, normalization and message enrichment for Fortigate log messages
  • GIM Categorization of the following messages:
Fortigate Log Subtype GIM Category GIM Subcategory
Forward network network.default
Multicast network network.default
Sniffer network network.default
Webfilter network network.default
Virus alert alert.default
Anomaly alert alert.default
Local network network.default
SSL network network.default

Fortigate Spotlight Content Pack

The Fortigate Spotlight content pack contains:

Dashboard: Fortigate Overview

-Fortigate Overview tab: Fortigate Overview

- Fortigate Overview tab: Virus Overview

- Fortigate Overview tab: Application Control Overview

- Fortigate Overview tab: DNS Overview