| On-Premise vs Virtual Firewalls: When to Choose a FortiGate VM |
Two Different Problems, Two Different Firewalls
A physical FortiGate protects a network perimeter — an office, a branch, a data centre uplink. A virtual FortiGate (FortiGate VM) protects workloads that don’t have a fixed physical location at all: virtual machines in a private hypervisor, or workloads running in AWS, Azure or Google Cloud. Increasingly, organisations need both working together rather than choosing one over the other.
What a FortiGate VM Actually Is
It’s the same FortiOS operating system that runs on physical FortiGate appliances, packaged as a virtual machine image instead. That matters practically: the same security policies, SD-WAN configuration approach and FortiGuard subscriptions apply whether the firewall is a physical box in a server room or a virtual instance in a hypervisor or cloud account.
When On-Premise Hardware Is Still the Right Call
- Protecting a physical office or branch network perimeter
- Environments where dedicated security processors (for SSL inspection at scale) matter more than flexibility
- Sites where internet connectivity to a cloud-hosted firewall isn’t reliable enough
When a FortiGate VM Makes More Sense
- Segmenting traffic between virtual machines inside a private data centre or hypervisor cluster
- Protecting workloads running in a public cloud (AWS, Azure, GCP) where there’s no physical network to put an appliance in front of
- Elastic or seasonal workloads where firewall capacity needs to scale up and down without new hardware purchases
- Disaster recovery sites, where standing up a virtual firewall is faster and cheaper than shipping physical hardware
How FortiGate VM Licensing Differs
Unlike physical appliances, which are sized by model number, FortiGate VM is licensed by vCPU count — from small single-vCPU instances suited to labs and small workloads, up to large, multi-vCPU or unlimited licences for demanding production environments. This makes it straightforward to match licensing cost to the actual size of the workload being protected, and to scale the licence up as that workload grows.
Running Both Together
Most organisations end up running a hybrid model: physical FortiGate appliances at the network edge and branch offices, and FortiGate VM instances protecting virtualised or cloud workloads — all managed centrally through FortiManager so policy stays consistent regardless of where a given firewall instance actually runs.
Frequently Asked Questions
Is FortiGate VM as secure as a physical FortiGate?
It runs the same FortiOS and the same security engines. The main practical difference is performance ceiling, since virtual instances rely on the host’s compute resources rather than dedicated security processors.
Can I move a FortiGate VM licence between cloud providers?
Licence portability depends on the specific licensing model purchased — some are tied to a vCPU tier rather than a specific cloud, but this should be confirmed at purchase.
Do I need separate management tools for physical and virtual FortiGates?
No — both can be managed centrally through the same FortiManager console alongside physical appliances.
How is a FortiGate VM licence sized for my workload?
MetaPoint Technologies’s pre-sales team can size a FortiGate VM licence against your expected throughput and vCPU allocation. WhatsApp +91 99895 44438.
Get the Right Firewall for the Right Workload
MetaPoint Technologies supplies and licenses both physical FortiGate appliances and FortiGate VM instances for customers across Hyderabad, Telangana, Andhra Pradesh and Karnataka. Call or WhatsApp +91 99895 44438 to discuss your environment.”