The file is a Cisco Packet Tracer lab file, likely designed to simulate or test a Virtual Private Network (VPN) configuration involving a FortiGate (FG) firewall or a similar gateway device . Overview of the Lab Environment
Configuring a secure IPsec tunnel between a FortiGate firewall and a Cisco router. VPN FG.pkt
In networking education, .pkt files are the standard format for Cisco Packet Tracer , a cross-platform visual simulation tool. A lab titled "VPN FG" typically focuses on one of the following scenarios: The file is a Cisco Packet Tracer lab