VNS3 Free - Network Controller (Firewall/Router/VPN)

My main use case for VNS3  is secure multi-cloud and hybrid connectivity, using VNS3  as an overlay VPN controller. I use it for IPsec site-to-site tunnels, encrypted mesh between cloud VPCs, and centralized firewall control without modifying native cloud networking.

For example, I have deployed VNS3 in AWS  to build encrypted IPsec tunnels between multiple customer VPCs and on-premises data centers. Instead of going through complex native peering plus firewall changes, VNS3 provided an overall mesh plus policy-based routing, reducing deployment time by fifty percent and simplifying MSP multi-tenant isolation.

The top three features that VNS3 offers are encrypted overlay networking, centralized firewall plus routing policies across clouds, and multi-cloud connectivity without native peering complexity, along with VPN orchestration and key management via controller APIs.

Additional valuable features in VNS3 include containerized deployment capabilities, cloud infrastructure and DevOps tooling integration, and fine-grained traffic steering without route controls.

VNS3 improved secure connectivity across multi-cloud and on-premises environments without complex native peering. It reduced VPN setup time, standardized firewall and routing policies, and provided clear encrypted traffic paths for compliance and MSP tenant isolation. Using VNS3, I saw forty to sixty percent faster VPN deployment versus native cloud plus firewall configurations, a thirty percent reduction in network change tickets due to centralized policy control, and lower infrastructure costs by avoiding dedicated hardware VPN appliances per customer.

The areas where VNS3 could be improved include native integration with cloud providers such as SD-WAN or transit services, deeper telemetry and analytics, and simpler GUI workflows for large multi-tenant setups.

Additional improvement ideas for VNS3 would be template-based multi-tenant deployments for MSP scales and Zero Trust micro-segmentation policies tied to identity or context.

I have been using VNS3 for three or more years.

VNS3 is stable.

VNS3 scales well horizontally. I can add controller instances per region or tenant and mesh via IPsec. Throughput and peer count depend on instance size, so planning capacity and automation matter for large or multi-tenant deployment.

The customer support is great. The team is knowledgeable and provides faster responses.

I previously used native cloud VPN plus hardware VPN appliances. I switched to VNS3 to get a software-defined overlay, centralized policy control, and easier multi-cloud hybrid networking without managing separate devices per customer.

Before choosing VNS3, I evaluated native cloud site-to-site VPN, which limited me for centralized control and complex multi-cloud orchestration. I also evaluated SD-WAN solutions, which are good for branch edges but are less flexible for cloud overlay. I chose VNS3 for its software-defined encrypted overlay and multi-cloud policy consistency.

Setup cost is moderate; it requires network planning and key management, but deployment is straightforward with infrastructure as code.

I am a customer with no other business relationship with this vendor.

Using VNS3 for the last three years, I saw measurable return on investment, including saving time on deploying VPN, which is forty to fifty percent versus native cloud plus firewall work. Operational efficiency improved because of the centralized control, and network change tickets have been reduced by thirty percent. I have also eliminated the need for dedicated hardware VPN appliances per customer.

The pricing or licensing is predictable. It is instance-based plus bandwidth tiers but can rise with heavy throughput or many endpoints.

Before choosing VNS3, I evaluated native cloud site-to-site VPN, which limited me for centralized control and complex multi-cloud orchestration. I also evaluated SD-WAN solutions, which are good for branch edges but are less flexible for cloud overlay.

I would rate VNS3 an eight overall. I chose an eight because it is strong for secure multi-cloud VPN overlay, policy control, and MSP tenant isolation. I cut two points because it could improve in advanced telemetry, native cloud integration, and large-scale automation.

If anyone is considering VNS3, I would recommend clearly designing the IP plan, routing model, and tenant isolation upfront. Validating throughput sizing and HA design earlier for multi-region MSP scale is important. My overall rating for this product is eight out of ten.