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

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Executive Summary

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

Find out in this report how the two Firewalls solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.

To learn more, read our detailed OPNsense vs. Stormshield Network Security Report (Updated: March 2026).

Buyer's Guide

OPNsense vs. Stormshield Network Security

March 2026

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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

Vasu Gala

Manager, Information Technology Operation/Presales at TechMonarch

A stable solution with an intuitive interface and quick customer service

I have been working with Fortinet FortiGate, WatchGuard, Sophos, and SonicWall. I'm not as comfortable with SonicWall because of their UI and limitations. I prefer Fortinet above all other options. When it comes to configuration, I am confident in my ability to handle various tasks, including creating policies such as firewall rules, web policies, and application policies. Additionally, I can configure VPNs and implement load balancing, among other tasks. Overall, I feel much more comfortable working with Fortinet. Fortinet has made significant improvements by integrating AI with firewalls for threat analysis and prevention. In the past 2-3 years, they have launched FortiSASE and SIEM, and they also provide SOC services. Both Palo Alto and Fortinet FortiGate are excellent. While Fortinet FortiGate comes at higher prices, the functionality and support justify the cost. They promptly resolve firmware issues and inform all support providers about configuration changes.

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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.

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Benjamin

Network Engineer at ACS2I

The intrusion detection system helps our organization by automatically detecting and responding to potential threats

The tool's most valuable feature is its dashboard, which helps you manage different aspects of a single page. The intrusion detection system helps our organization by automatically detecting and responding to potential threats. It operates similarly to Darktrace, which detects and responds automatically based on the security rules you apply. Initially, you configure everything to block, and then you can whitelist specific items as needed.

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Quotes from Members

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

Pros

"We use it to avoid unwanted traffic."

"We can detect any attack of viruses or malware at the first point of contact."

"Fortinet FortiGate is a simple solution, and the integration with other solutions in the Fortinet portfolio, such as the Security Fabric integration, is competitive."

"Its interface is the most valuable. It is quite easy to manage."

"One of the valuable features is a standardized OS."

"Its performance in fulfilling our requirements has been satisfactory."

"Security, SD-WAN, and Streetscape are valuable features."

"It's a user-friendly firewall. Most of the tasks are very simple. It's simple to configure and troubleshoot this firewall."

More Fortinet FortiGate pros

"The solution is user-friendly and easy to configure."

"The system in general is quite flexible."

"We saved up to half a million Egyptian pounds, which is nearly $100,000 yearly on licensing or subscription using this kind of software, and the network attacks reduced by approximately 60% after using that, even without customizing the custom configuration yet."

"The initial implementation process is simple."

"URL blocking, Wireguard, Tail Scale, Engine Blocker, and VPN are the most valuable features for me."

"We can open a new VPN connection easily. It's much easier than with Fortinet in our experience."

"The most valuable feature is the Dual WAN in OPNSense, which offers advanced capabilities."

"The solution has high availability."

More OPNsense pros

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

"I can see what traffic is going on. I can easily block any programs from attacks."

"The scalability of the solution is good."

"A very robust product."

"It's an easy, straightforward management platform to use."

"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."

"Easily manageable in a variety of environments."

"The tool's most valuable feature is its dashboard, which helps you manage different aspects of a single page."

More Stormshield Network Security pros

Cons

"FortiGate's reporting features could provide a better picture of what is happening in the box."

"Their support's response time can be better. In the past six months, they took quite a long time to respond to the support tickets."

"I face difficulties integrating Fortinet FortiGate with Active Directory."

"Fortinet FortiGate could improve by having more storage in the hardware for log data."

"If I had any criticism that I would give FortiGate, it would be that they need to stop changing their logging format. Every time we do a firmware upgrade, it is a massive issue on the SIM. Parsers have to be rebuilt. Even the FortiGate guys came in and said that they don't play well in the sandbox."

"Fortinet FortiGate could improve by having more capabilities for troubleshooting VPN connections. For example, I do get some feedback about the current status, but I could use some history and logging of important events. The information is logged in our Syslog server, but I could use that information from the device. If they could provide a GUI to have some more insight on what's going with my VPN would be useful."

"Scalability is one of the disadvantages. When it comes to scalability, you have to actually change the box. If you want to upgrade it, you need to actually change the existing box and probably you take the system off to other sites."

"The security features could have been more similar to those in the Palo Alto firewall with major data protections and WildFire, and deeper inspection capabilities, which Fortinet FortiGate lacks."

More Fortinet FortiGate cons

"Given that OPNsense plays a pivotal role as a firewall, safeguarding against various threats, having a reliable backup ensures uninterrupted protection even if unforeseen events impact the primary virtual machine."

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

"An area for improvement in OPNsense is the hardware, which needs to be updated more frequently. DNS blocking is another good feature I want to be added to the solution. pfSense has a peer-blocking feature that I also want to see in OPNsense."

"I think the most important thing is that it should be easily accessible, but currently, that doesn't seem to be the case. We need a hardware platform that's based on common standards and open computing principles, which would be like a commodity and benefit us greatly."

"OPNsense can be improved by making it more user-friendly, as its current UI is not that user-friendly when compared to paid software such as Sophos."

"There are some add-ons that need enhancements to make management easier for users, especially the reporting features. Some reports don't show the level of detail I'm looking for, and I've had trouble installing certain add-ons, especially for Internet bandwidth shaping within my company."

"The interface of the solution is an area with shortcomings."

"I would like to see better SD-WAN performance."

More OPNsense cons

"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."

"The SD card could be more secure."

"This is not a next-generation firewall."

"The product must improve its pricing."

"Stormshield Network Security is quite expensive."

"With Stormshield, there are difficulties joining things, and it can be complex depending on the architecture."

"The biggest issue was their support department was not able to help us, then everything stops. This is a no-go area for me."

"Not all the fields are activated yet and we were informed that it will take at least one month."

More Stormshield Network Security cons

Pricing and Cost Advice

"I give the pricing of the solution a six out of ten."

"The price of Fortinet FortiGate is better than Cisco, Check Point, and Palo Alto. In terms of pricing, it's probably a better-priced firewall solution overall."

"There is a licensing fee; it is on a yearly basis."

"Some of our customers are using Sophos and SonicWall due to price concerns, as they can't manage the pricing of Fortinet FortiGate."

"Its price is affordable and lesser than Cisco. Cisco is expensive. In terms of licensing, there is only one issue. If a customer's license has expired a month ago and they do the renewal after one month, Fortinet renews the license from the start of the previous month. The activation of the product is done from the previous month, not from the date of renewal. The customers usually shout and complain that because they are paying today, the renewal should start from today. The support contract renewals or licensing should be renewed from the date of renewal, but Fortinet starts from the day it had expired. It is a loss for customers. They might have had some problems because of which they did not take the license one month before. Fortinet should work on this. Cisco doesn't do this. Cisco always starts from the day they apply for the license."

"Fortinet is reasonable in pricing and licensing. Overall, FortiGate is affordable. The licensing fee can be a little high, depending on the budget for your project."

"The pricing is better compared to other solutions like Check Point, Arista, or Cisco."

"For our organization, the licensing costs are approximately $7,000 per year."

More Fortinet FortiGate pricing and cost advice

"We are using the paid version."

"We are not paying any licensing fees. OPNsense is completely free for us."

"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 solution is not expensive."

"There are no licensing costs for OPNsence."

"It is not an expensive product. Basically, I deployed it because it was the fastest solution to satisfy our needs in open source."

"OPNsense is open source software so at this time it is free for us to use."

"I'm using the free version of OPNsense. I didn't check the pricing for the solution because I still need to test it before getting the approval to purchase OPNsense, and it isn't easy to get approval from the higher-ups."

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."

"I think the price is good."

"The pricing could be better."

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

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

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

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

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Top Industries

By visitors reading reviews

Computer Software Company

11%

Comms Service Provider

10%

Manufacturing Company

Financial Services Firm

Comms Service Provider

18%

Computer Software Company

11%

Manufacturing Company

University

Comms Service Provider

17%

Computer Software Company

15%

Manufacturing Company

11%

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	360
Midsize Enterprise	135
Large Enterprise	190

By reviewers
Company Size	Count
Small Business	31
Midsize Enterprise	6
Large Enterprise	8

By reviewers
Company Size	Count
Small Business	9
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...

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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...

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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 ...

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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...

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What do you like most about OPNsense?

What I like the most about OPNsense is that it offers an easy-to-use dashboard for device management and control.

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...

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

The tool is like a firewall and works well. I don't have any issue with it. I rate it an eight out of ten.

See all answers

Comparisons

Sophos Firewall vs Fortinet FortiGate

Compared 19% of the time

Cisco Secure Firewall vs Fortinet FortiGate

Compared 13% of the time

Palo Alto Networks NG Firewalls vs Fortinet FortiGate

Compared 4% of the time

Netgate pfSense vs Fortinet FortiGate

Compared 4% of the time

Check Point Quantum Force (NGFW) vs Fortinet FortiGate

Compared 3% of the time

More Fortinet FortiGate Competitors

Netgate pfSense vs OPNsense

Compared 52% of the time

IPFire vs OPNsense

Compared 8% of the time

Sophos Firewall vs OPNsense

Compared 7% of the time

Sophos UTM vs OPNsense

Compared 3% of the time

Untangle NG Firewall vs OPNsense

Compared 2% of the time

More OPNsense Competitors

Netgate pfSense vs Stormshield Network Security

Compared 10% of the time

Sophos Firewall vs Stormshield Network Security

Compared 7% of the time

WatchGuard Firebox vs Stormshield Network Security

Compared 7% of the time

Sophos UTM vs Stormshield Network Security

Compared 5% of the time

Palo Alto Networks NG Firewalls vs Stormshield Network Security

Compared 4% of the time

More Stormshield Network Security Competitors

Product Reports

Buyer's Guide

Fortinet FortiGate

March 2026

Download Fortinet FortiGate product report

Buyer's Guide

OPNsense

March 2026

Download OPNsense product report

Buyer's Guide

Stormshield Network Security

February 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

NETASQ's integrated intrusion prevention engine uses protocol conformity analysis, application filtering and antivirus analysis to inspect authorized traffic flows and strengthen application security. NETASQ enables you to establish and configure user-based security policies, giving you greater control over which network resources each user is authorized to access.

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

Buyer's Guide

OPNsense vs. Stormshield Network Security

March 2026

Free Report: OPNsense vs. Stormshield Network Security

Find out what your peers are saying about OPNsense vs. Stormshield Network Security and other solutions. Updated: March 2026.

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