OPNsense vs Stormshield Network Security comparison

Why PeerSpot?

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.

OPNsense

Read 47 OPNsense reviews

28,343 Views
26,642 Comparison Views

95% willing to recommend

Stormshield Network Security

Read 18 Stormshield Network Security reviews

4,439 Views
1,909 Comparison Views

85% willing to recommend

OPNsense

Stormshield Network Security

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: November 2026).

Buyer's Guide

OPNsense vs. Stormshield Network Security

November 2026

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Helped 920,769 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

OPNsense

Average Rating

8.2

Reviews Sentiment

6.6

Number of Reviews

Ranking in other categories

Firewalls (7th)

Stormshield Network Security

Average Rating

7.8

Reviews Sentiment

5.4

Number of Reviews

Ranking in other categories

Unified Threat Management (UTM) (12th)

Featured Reviews

Peter Muiruri

IT Manager at a comms service provider with 201-500 employees

Open-source firewall has provided affordable real-time protection and secure remote access

In my opinion, OPNsense could improve by incorporating either an open side of wireless management or a way that you can also manage your interconnected devices. You could easily have SNMP, Simple Network Management Protocol, incorporated in it so that you can easily manage the devices and easily get the information about the devices that you are managing. Additionally, the inclusion of Pi-hole would allow you to create an ad-free network instead of adding it on a separate device. I would prefer that incorporated into OPNsense, or if it is there, I would appreciate guidance on how to use it.

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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

"I find everything valuable in OPNsense; the configuration and reporting aspects are what we require, reporting on user access and data consumed is fascinating in OPNsense, and the configuration offers a clear idea of everything that I have configured in DHCP."

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

"The system in general is quite flexible."

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

"It has firewall and VPN capabilities, which are very valuable features."

"The DNS-level filtering is impressive for thwarting time scanners."

"One of the most valuable features is the network checking. Additionally, the firewall and web filtering functionalities are highly useful."

"OPNsense impacts my projects and home network positively because its cost-effectiveness is perfect for lab and enterprise setup without expensive licensing, and the flexibility, easy VLAN and DMZ configuration supports different zones such as web servers, mail servers, and log servers."

More OPNsense pros

"The features I find most valuable is the backup inspection, the filtering, and the load balancing, and I am also impressed by the antivirus feature that gives us two controls over the viruses - one is from the parameter and one on the endpoint."

"The most valuable features of this solution are the URL filtering database, which is great and contains all internet categories, the highly scalable interface that I can turn into what I want including hybrid, bridge, or router mode, the security with no back doors that is more secure than other solutions, and the hardware performance that is also better than others."

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

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

"Stormshield Network Security is a very stable solution and the solution works perfectly so we never had to contact technical support."

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

"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."

"The performance of this solution is good."

More Stormshield Network Security pros

Cons

"The IPS solution could be more reliable."

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

"The support service isn't very accessible, so you have to look at the forums to solve some issues."

"SD-WAN (software-defined wide area network) is integrated into some restricted service providers for OPNSense."

"The solution would not be suitable for anything large-scale."

"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."

"The user interface could be improved, and the DNS section should be more intuitive."

More OPNsense cons

"The stability is not that good based on my experience. We have a lot of disruptions when it comes to Stormshield."

"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."

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

"Being more cost effective. I went with a pair of Watchguard M300 recently when buying a new firewall cluster for our own use because it was way cheaper than NetASQ/Stormshield N700 while being faster, and it offers true multi-master firewall clustering if needed."

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

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

"It could be better if it were more user-friendly for us as we dont use it very often even if we never had problems to modify setup when needed."

More Stormshield Network Security cons

Pricing and Cost Advice

"Its pricing is unbeatable in comparison to other firewalls. You can have a small instance that could be €80 a month with the hardware underneath. Azure Firewall and FortiGate are out of the question at this price. If you are on a public cloud, you need the underlying infrastructure. Other than that, there is no additional cost. If you have it on-prem, you have to buy the server or the appliance. The hardware cost is replaced with the infrastructure cost in the cloud. You also have costs for the public IPs and underlying VMs, but that's not related to OPNsense. It would be the same for a FortiGate deployment on Azure. You need a FortiGate license, and you need the underlying infrastructure that scales up depending on your needs."

"It is open source and free."

"I would rate the pricing three out of ten."

"It's not expensive."

"The solution is 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."

"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."

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

More OPNsense pricing and cost advice

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

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

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

"I think the price is good."

"The pricing could be better."

"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."

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Top Industries

By visitors reading reviews

Comms Service Provider

18%

Manufacturing Company

Outsourcing Company

Computer Software Company

Comms Service Provider

17%

Manufacturing Company

12%

Construction Company

Outsourcing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

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

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 client, Open VPN and client, and PPTP client. Both also have intrusion detection a...

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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 enough. Open source license allows a beginner to have a complete firewall solution ...

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 is that sometimes the VPN route caches for some time and sometimes I want to cha...

See all answers

What needs improvement with Stormshield Network Security?

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 Stormshield Network Security, and the official reseller of Stormshield.

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 Stormshield Network Security is also not inexpensive. My overall review rating fo...

See all answers

Comparisons

Netgate pfSense vs OPNsense

Compared 48% of the time

Fortinet FortiGate vs OPNsense

Compared 6% of the time

IPFire vs OPNsense

Compared 5% of the time

Sophos Firewall vs OPNsense

Compared 4% of the time

Cisco Secure Firewall vs OPNsense

Compared 4% of the time

More OPNsense Competitors

Fortinet FortiGate vs Stormshield Network Security

Compared 14% of the time

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 4% of the time

WatchGuard Firebox vs Stormshield Network Security

Compared 4% of the time

More Stormshield Network Security Competitors

Product Reports

Buyer's Guide

OPNsense

October 2026

Download OPNsense product report

Buyer's Guide

Stormshield Network Security

October 2026

Download Stormshield Network Security product report

Also Known As

No data available

NETASQ Firewalls

Overview

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

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

November 2026

Free Report: OPNsense vs. Stormshield Network Security

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