OPNsense vs Stormshield Network Security comparison

OPNsense and Stormshield are both solutions in the Firewalls category. Additionally, 95% of OPNsense users are willing to recommend the solution, compared to 85% of Stormshield users who would recommend it.

Comparison Buyer's Guide

Download the report

Executive Summary

We performed a comparison between OPNsense and Stormshield Network Security based on real PeerSpot user reviews.

Find out what your peers are saying about Fortinet, Netgate, Sophos and others in Firewalls.

To learn more, read our detailed Firewalls Report (Updated: May 2026).

Buyer's Guide

Firewalls

May 2026

Download the complete report

Helped 900,644 peers since 2012

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

Fortinet FortiGate

Featured Reviews

Mageshwaran S

Solution Architect at airtel

Enables customers to manage security effortlessly with intuitive features and easy integration

In terms of improvements for Fortinet FortiGate, they could offer evaluation licenses, as compared to Meraki, which provides a 90-day evaluation. In Fortinet FortiGate, they do not provide standard evaluation licenses; instead, we need to request them from the OEM through the account manager for POCs. If we want to conduct a demo, we need to work with real hardware. In comparison to Cisco, we have DCloud, which helps with providing demos to customers, but in Meraki, I need to reach out to them, book a lab, and they need to provide all the hardware. I need remote access and L3 engineers to program it; only then can I offer a real-time demo to the customer.

Read full review

Moutaz Sheikh Alard

ISO 27001 Lead Implementer at a consultancy with 11-50 employees

Has helped simulate enterprise security setups and strengthens network segmentation practices

For my capstone, I use OPNsense for my project and its broader benefits for enterprise and cybersecurity context. OPNsense is an open source based firewall and routing platform. It offers enterprise-grade features such as intrusion detection and prevention system, VPN support, traffic shaping, and web filtering, all without license cost. This platform has a modular design, a clean web-based GUI, and frequent updates that prioritize security and usability. It competes with commercial firewalls such as Cisco ASA, FortiGate, and Palo Alto, but stands out because it's community-driven, cost-effective, and transparent. I find OPNsense's feature of acting as a central firewall and gateway most valuable, providing robust point segmentation between the internal network and DMZs in my capstone project, intrusion detection to monitor malicious traffic, VPN services for secure remote access, and logging and monitoring for compliance and auditing. This allows me to simulate a real-world enterprise environment on a smaller scale, demonstrating both security hardening and network efficiency. OPNsense impacts my projects and home network positively because its cost-effectiveness is perfect for lab and enterprise setup without expensive licensing. The flexibility, easy VLAN and DMZ configuration supports different zones such as web servers, mail servers, and log servers. The security-first design for IDS/IPS integration helps me showcase modern defense-in-depth strategies. The user-friendly management through the web GUI makes it possible to manage complex firewall rules clearly, which is critical when documenting and presenting a capstone. Scalability is also an advantage. Although my project is lab-based, OPNsense can scale into production deployments in SMBs and enterprise.

Read full review

Zsolt Jónás

System Administrator at NaxoNet

Advanced GUI and layered security have supported compliance and simplified intrusion prevention

I haven't had a task that I couldn't solve with Stormshield Network Security. The active-active high availability solution would be beneficial because currently, if you build a high availability solution with Stormshield Network Security, you have a main device and another one is a backup device. The HA can switch between them, but it would be good to have a master-master solution, not just a master-slave one. I could set a URL that I can call to update the DNS record. Currently, Stormshield Network Security devices support DynDNS, which is not a usual feature request from a server environment. I have my own solution instead of DynDNS because I don't prefer it, so I have my own service for that. However, the GUI does not support using a custom service instead of DynDNS. I had to solve it in the console on Stormshield Network Security device, but it would be much better if it was reachable on the GUI. I had to figure out a trick for the IPsec configuration. In the IPsec config, we have to provide the remote side's IP address, but it's always changing. This means that an office, for example a company that has an office but without a fixed IP address, cannot be used with IPsec VPN.

Read full review

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros

"It has the same functionalities throughout the range of products."

"One of the features I appreciate the most is application control which offers great flexibility."

"The most valuable features of the FortiGate firewall include SSL inspection, VPN functionality, and threat intelligence features for preventing threats."

"There are great templates, so you don't have to customize them if you don't want to. You do have the option to custom create some folders and some reports, however, with what is there, you don't really need to go through extra effort, as they already give you a lot of predefined views of reports and so forth."

"Fortinet FortiGate has SD-WAN, FortiView, antivirus, sandbox, and IPS, which are generally well-known features."

"The solution is stable."

"The solution has improved my organization significantly, with impactful capabilities such as sandboxing and cloud solutions, such as XDR, MDR, and EDR."

"Consolidated our network environment at all locations, but mainly at our datacenter."

More Fortinet FortiGate pros

"OPNsense definitely gives me peace of mind and helps my workflow because of the network isolation, as I can have multiple subnets without having to worry about one affecting the other."

"The solution is easy to use and is accessible."

"I have found the solution has some great features overall, such as guest access capabilities, dashboards, and ease of use. There is plenty of documentation and support and it has the plugins that I needed."

"The initial setup is easy. It only takes 15-30 minutes to deploy."

"It has an open license. It works very well, and there is an update every month."

"OPNsense is suitable for Small to Medium-sized companies."

"The IDS and IPS features are valuable. From the usability perspective, there is a lot of good documentation. As IT professionals, we found it very easy to configure the firewall. It was easy to configure and use."

"It's open source."

More OPNsense pros

"Ease of use is the best feature of the product."

"Our organization's main concern is stability, and this is a stable solution."

"The multi-layered security approach of Stormshield Network Security is a good one and has helped with compliance."

"The performance of this solution is good."

"A very robust product."

"I like how you can configure the rules. There is the task for the rules and a task for the network configuration. It also provides SMD filtering, and it can be integrated with the active directory for the users, their mission, and the VPN configuration. We are here in Sudan, and Stormshield didn't work in Sudan for more than a decade. Stormshield is a very strong firewall and very easy to configure and maintain. I am just working with the firewall solution, and we don't have any other solutions like endpoint solutions or something like that."

"This product has improved the way our organization functions."

"Customer service is very good, because of their presales support helping me with initial setup I decided to go with NetASQ in the first place, and support after the sale has been equally good as well."

More Stormshield Network Security pros

Cons

"The AI part needs improvement to enhance its functionality."

"At the moment, the main concern is the pricing and the type of licensing. Fortinet offers different types of licensing, and my idea is that the best approach is to have only one, two, or a maximum of three types of licensing."

"I see problems with the licensing. If I have to add a new feature, we need to add a license."

"There could be more modifications."

"Fortinet FortiGate could improve by having a frequent ask questions(FAQ) area for people to receive quick answers to popular questions. Additionally, it would be beneficial to have an SMS notification feature. For example, if you cannot access your email you could receive an SMS message."

"There should be some open-source training or free training for decision makers, or some webinars should be available. These would help understand the new product line and the existing product line features."

"In FortiGate Next Generation Firewall (NGFW), my concern regarding improvements is the licensing model."

"The logs need to be better. They need to be more visible and easier to access."

More Fortinet FortiGate cons

"OPNsense could be improved with a better wizard, as when I first installed it, it seemed difficult to know where to go."

"The feature that I would like to see in the next release, I think, would be to improve the VPN (Virtual Private Network) selection."

"The only thing that I would like to see improved is the Insight or the NetFlow analysis part. It would be good to have the possibility to dig down on the Insight platform. Right now, we can easily do only a few analyses. If this page becomes more powerful, it surely will be a well-adopted platform."

"The reporting part could be better."

"The solution can't compete with next-generation firewalls."

"The interface isn't so friendly user. But we have some technicians here who are quite confident with this tool. OPNSense could maybe add sets of rules so it's simpler to manage different groups with particular needs."

"In terms of improvement, the performance could be enhanced."

"FortiGate is a better firewall but that is commercial software that you have to buy a license for."

More OPNsense cons

"Support is always an issue because they're constantly busy."

"One thing, though, is that not all the fields are activated yet and we were informed that it will take at least one month."

"The product must improve its pricing."

"The pricing of this solution needs to be decreased."

"The main area of this product that has room for improvement is pricing. Stormshield Network Security is quite expensive."

"An application firewall like other next generation firewalls have."

"The filtering configuration could be better. We have some difficulties with the filtering configuration and the filter extension. It's not that easy. It's not that straightforward. In the next release, I would like to see a reporting system. Stormshield doesn't have any tutorials on how to do the configuration and things like that. They just have documentation on the website. If you want to configure, for example, Cisco or Fortinet, you can find tutorials on YouTube. They show you how to configure the features, and so on. In Stormshield, there is nothing on social media or the internet on how to configure different things. The lack of documentation or the lack of material makes it difficult for others to adopt this solution."

"This solution has a big problem with web filtering and it needs to be improved."

More Stormshield Network Security cons

Pricing and Cost Advice

"It's one of the more expensive brands. The 100 series costs around $4,000. They are similar in pricing to what you might get from Cisco solutions and probably other similar ones. They're not more expensive than other similar solutions, but they're certainly not cheaper either."

"Fortinet FortiGate as a less expensive solution than Palo Alto."

"The price could be lower."

"I would say that all things considered, the pricing is pretty good."

"Its price could be better."

"Here in Brazil, we're going through difficult economic times and the tax on the dollar is high. All the solutions from minor competitors are growing in the market. The prices have come more competitive."

"It has a competitive price."

"My experience with the pricing, setup cost, and licensing for Fortinet FortiGate is quite good. I don't have a public site, such as in Azure, where I can see the pricing. I always have to go through the distributor, and that could take some time to get the real price for each appliance."

More Fortinet FortiGate pricing and cost advice

"We are using the paid version."

"It costs about $1000."

"As an appliance, it's in the medium price range."

"It's not expensive."

"I've used the free version. My computer with two network cards at home allows me to try as many different software options as I want. I did pay for the license, but it was for the Zenarmor license, which is the packet inspection tool. They use AI for packet inspection, which integrates with OPNsense and pfSense."

"It is a free solution, and when you compare it to alternatives like FortiGate, which is quite powerful but also costly, the value becomes evident."

"The price of OPNsense is good."

"OPNsense is an open-source solution and it is free to use."

More OPNsense pricing and cost advice

"We bought a three-year license, and we renew it whenever it expires. The price could be better. It's always very expensive."

"The SN200 series costs between $500 USD and $600 USD per year, whereas the SN700 series costs approximately $1,000 annually."

"The pricing could be better."

"For mid-sized companies, they sell their appliances for good prices."

"I think the price is good."

"The price of this solution and the price of support are ok."

"We chose Stormshield for its price, as the Azure firewall was too expensive."

See which vendors are best for you

Use our free recommendation engine to learn which Firewalls solutions are best for your needs.

See recommendations

900,644 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Comms Service Provider

10%

Computer Software Company

10%

Manufacturing Company

Financial Services Firm

Comms Service Provider

17%

Computer Software Company

10%

Manufacturing Company

Financial Services Firm

Comms Service Provider

16%

Manufacturing Company

12%

Computer Software Company

10%

Construction Company

10%

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	370
Midsize Enterprise	138
Large Enterprise	195

By reviewers
Company Size	Count
Small Business	32
Midsize Enterprise	6
Large Enterprise	8

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	5
Large Enterprise	2

Questions from the Community

Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?

When you compare these firewalls you can identify them with different features, advantages, practices and usage a...

See all answers

What is the biggest difference between Sophos XG and FortiGate?

From my experience regarding both the Sophos and FortiGate firewalls, I personally would rather use FortiGate. I know...

See all answers

What are the biggest technical differences between Sophos UTM and Fortinet FortiGate?

As a solution, Sophos UTM offers a lot of functionality, it scales well, and the stability and performance are quite ...

See all answers

What is the difference between PfSense and OPNsense?

Two of the most common and well recognized firewalls, PfSense and OPNsense both support site-to-site IPsec VPN and cl...

See all answers

What is your experience regarding pricing and costs for OPNsense?

Setup cost is almost zero as one can simulate the whole environment using open source version. Pricing seems fair eno...

See all answers

What needs improvement with OPNsense?

When I talk about VPN, I am not completely satisfied with the VPN functions of OPNsense. What I have received so far ...

See all answers

What needs improvement with Stormshield Network Security?

I haven't had a task that I couldn't solve with Stormshield Network Security. The active-active high availability sol...

See all answers

What is your primary use case for Stormshield Network Security?

I already use Stormshield Network Security, and I am now looking for a new solution. I am already working with Storms...

See all answers

What advice do you have for others considering Stormshield Network Security?

The pricing is increasing, and I would say it is a bit expensive. Palo Alto and others are much more expensive, but S...

See all answers

Comparisons

Sophos Firewall vs Fortinet FortiGate

Compared 17% of the time

Cisco Secure Firewall vs Fortinet FortiGate

Compared 13% of the time

Palo Alto Networks NG Firewalls vs Fortinet FortiGate

Compared 5% of the time

Netgate pfSense vs Fortinet FortiGate

Compared 3% of the time

Cisco Meraki MX vs Fortinet FortiGate

Compared 2% of the time

More Fortinet FortiGate Competitors

Netgate pfSense vs OPNsense

Compared 52% of the time

IPFire vs OPNsense

Compared 6% of the time

Sophos Firewall vs OPNsense

Compared 5% of the time

Sophos UTM vs OPNsense

Compared 3% of the time

Cisco Secure Firewall vs OPNsense

Compared 3% of the time

More OPNsense Competitors

Netgate pfSense vs Stormshield Network Security

Compared 11% of the time

Sophos UTM vs Stormshield Network Security

Compared 8% of the time

Sophos Firewall vs Stormshield Network Security

Compared 5% of the time

WatchGuard Firebox vs Stormshield Network Security

Compared 5% of the time

Cisco Secure Firewall vs Stormshield Network Security

Compared 4% of the time

More Stormshield Network Security Competitors

Product Reports

Buyer's Guide

Fortinet FortiGate

June 2026

Download Fortinet FortiGate product report

Buyer's Guide

OPNsense

June 2026

Download OPNsense product report

Buyer's Guide

Stormshield Network Security

May 2026

Download Stormshield Network Security product report

Also Known As

Fortinet FortiGate Next-Generation Firewall

No data available

NETASQ Firewalls

Overview

Fortinet FortiGate is a versatile network security tool offering features like VPN, firewall, web filtering, intrusion prevention, and scalability. It is known for its performance and integration with other Fortinet products, making it a preferred choice for robust cybersecurity.

Fortinet FortiGate stands out as a comprehensive cybersecurity solution with strong performance and ease of configuration. It delivers unified threat management, integrating features such as dynamic routing, SD-WAN support, and centralized management. Despite its strengths, improvements in the web interface's stability, pricing structures, and reporting capabilities are needed. Users seek better integration with third-party tools and automation advancements to enhance the experience further. These enhancements, alongside improvements in bandwidth management and the reduction of licensing costs, are points of interest for users looking to capitalize on FortiGate's extensive capabilities.

What are Fortinet FortiGate's key features?

VPN: Ensures secure remote connections.
Firewall: Protects against unauthorized access.
Web Filtering: Blocks malicious sites and content.
Application Control: Manages and controls applications.
Intrusion Prevention: Detects and prevents vulnerabilities.
SSL Inspection: Enhances security by inspecting encrypted traffic.

What benefits should be considered when evaluating Fortinet FortiGate?

Affordability: Offers cost-effective security solutions.
Reliability: Known for consistent and stable performance.
Integration: Seamlessly integrates with other Fortinet products.
Comprehensive Protection: Provides broad threat protection capabilities.

Fortinet FortiGate is widely implemented across industries as a primary firewall system for securing internet gateways and safeguarding data centers. It supports businesses in achieving SD-WAN integration and enhances cybersecurity by providing essential features like antivirus, web filtering, and application control. Enterprises utilize FortiGate for securing remote connections and ensuring compliance with security standards, making it adaptable for different network sizes and industries.

Fortinet

OPNsense is an adaptable open-source firewall and routing platform appreciated for its flexibility, scalability, and user-friendly interface. It is equipped with robust security features and offers excellent reporting and visibility, essential for small businesses and home setups.

OPNsense stands out for its modular design, allowing cost-effective customization. This system supports VPNs and various firewall capabilities, making it suitable for securing networks from malicious traffic. Its frequent updates and extensive documentation, combined with a supportive online community, enhance user experience. However, there is room for improvement in integration with virtual servers and Azure. Scalability and hardware updates are important for large-scale environments, and users desire more reliable VPN solutions and enhanced threat intelligence tools.

What are OPNsense's most important features?

Flexibility: Easily customizable due to its open-source nature.
Robust Security: Advanced security features for network protection.
User-Friendly Interface: Simplified management and configuration.
Frequent Updates: Regular improvements and new features.
Dense Documentation: Extensive resources and community support.

What benefits should users look for in reviews?

Cost-Effectiveness: Open-source design reduces costs.
Scalability: Ability to grow with business needs.
Customizability: Tailored solutions for different requirements.
Community Support: Access to a strong network of resources and peers.

OPNsense is implemented in industries requiring VPN and firewall functions, supporting site-to-site connections, protecting servers, and managing commercial network traffic. Companies apply it for security, UTM, SD-WAN, content filtering, intrusion detection, and prevention, utilizing its open-source nature and effectiveness as a next-generation firewall.

OPNsense

Stormshield Network Security offers comprehensive protection with features like backup inspection, scalable interface, and load balancing, suitable for network security management.

Stormshield Network Security is designed for organizations requiring reliable IT infrastructure protection, providing firewall capabilities, intrusion detection, and application control. Users find VPN support, URL filtering, and UTM functions beneficial for network management. Models like SN200 and SN910 are used globally in clustered configurations, addressing different demands. Challenges include pricing, interface friendliness, filtering configurations, and technical support.

What are the key features of Stormshield Network Security?

Backup Inspection: Enhances reliability and recovery options.
Antivirus Controls: Provides robust virus protection.
Intrusion Detection: Alerts on potential threats.
Load Balancing: Distributes network traffic efficiently.
URL Filtering: Blocks malicious websites for safe browsing.

What benefits should users seek in reviews?

Scalability: Adapts to each organization's growing needs.
Reliability: Supports clustered configurations for uptime.
Management Ease: Intuitive dashboard aids network oversight.
Performance: High throughput with efficient clustering.

Stormshield Network Security is widely implemented in industries needing IT infrastructure protection, like finance or healthcare. Organizations deploy it in data centers or branch offices, benefiting from features ensuring safety and performance. The tool supports environments that demand high security levels and robust network monitoring.

Stormshield

Sample Customers

Amazon Web Services, Microsoft, IBM, Cisco, Dell, HP, Oracle, Verizon, AT&T, T-Mobile, Sprint, Vodafone, Orange, BT Group, Telstra, Deutsche Telekom, Comcast, Time Warner Cable, CenturyLink, NTT Communications, Tata Communications, SoftBank, China Mobile, Singtel, Telus, Rogers Communications, Bell Canada, Telkom Indonesia, Telkom South Africa, Telmex, Telia Company, Telkom Kenya

1. Deciso B.V. 2. iXsystems, Inc. 3. EuroBSDCon 4. Netgate 5. Claranet 6. Voleatech 7. Open Systems AG 8. Securebit AG 9. Proxmox Server Solutions GmbH 10. AVM Computersysteme Vertriebs GmbH Additional customers include: T-Systems International GmbH, Deutsche Telekom AG, Vodafone GmbH, 1&1 IONOS SE, OVHcloud, Hetzner Online GmbH, Strato AG, PlusServer GmbH, Host Europe GmbH, United Internet AG, 1&1 Versatel Deutschland GmbH, QSC AG, Bechtle AG, Cancom SE, Computacenter AG & Co. oHG, T-Systems Multimedia Solutions GmbH, Atos SE, Capgemini SE, Accenture plc, IBM Corporation, Hewlett Packard Enterprise Company, Cisco Systems, Inc.

ACESUR group, Ministry of Education Oman, Anios Laboratories, Zain, DLM Location

Find out what your peers are saying about Fortinet, Netgate, Sophos and others in Firewalls. Updated: May 2026.

DOWNLOAD NOW

900,644 professionals have used our research since 2012.

See our list of best Firewalls vendors.

We monitor all Firewalls reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.