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OPNsense vs SonicWall NSv comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 16, 2024

Review summaries and opinions

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

ROI

Sentiment score
5.9
Fortinet FortiGate offers strong security, cost efficiency, and easy integration, saving organizations up to 30% on data costs.
Sentiment score
3.8
OPNsense offers quick ROI, annual savings, improved network protection, efficiency, but faces challenges like market disruptions and cyber threats.
Sentiment score
6.8
SonicWall NSv reduced costs, improved security and performance, enhancing efficiency and operations, ultimately driving business growth.
Clients are now comfortable and not wasting productive hours on IT support.
The automation part is giving us a cost benefit and speed; we can react faster.
It's a very useful tool to mitigate and protect your enterprise.
The network attacks reduced by approximately 60% after using that, even without customizing the custom configuration yet.
For a very little investment, I was able to increase the security of my network.
Investment was challenging but strategic, given its advantages like 30% depreciation in the Indian ecosystem by the third year.
The relevant metric includes the time saved in deployment, especially if you go with Classic Mode over Policy Mode.
 

Customer Service

Sentiment score
6.6
Fortinet FortiGate support is generally effective, but some users report delays and issues with complex problem resolution and communication.
Sentiment score
4.9
Users often solve issues using online resources, valuing community help, but suggest OPNsense centralize and improve support options.
Sentiment score
6.9
SonicWall NSv's customer service is praised for responsiveness but could improve due to occasional lengthy wait times.
They offer very accurate solutions.
The quick resolution of issues with Fortinet FortiGate is due to the support of the company and the fact that the equipment is easy to work with.
I would rate the technical support for Fortinet FortiGate a ten out of ten.
Compared to some open-source projects with weak support, OPNsense stands out for having both a strong community and commercial backing options.
I mainly rely on community support since the solution is open source.
If you say you do not have one, it is finished. This is where the monopoly starts.
I would rate the responsiveness of the technical support from SonicWall as 9 to 10.
With the number of items that SonicWall has going on at the moment, the wait line can be quite intrusive.
 

Scalability Issues

Sentiment score
7.1
Fortinet FortiGate efficiently scales for SMEs, though hardware upgrades can be challenging, with virtual deployments offering flexibility.
Sentiment score
6.6
OPNsense is scalable and adaptable, supporting small to large deployments with flexibility in hardware upgrades and virtual machines.
Sentiment score
7.1
SonicWall NSv is highly scalable, effective across branches, enhancing cloud transitions with easy upgrades and centralized management.
They scale up really well from smaller models like the FortiGate 40 and 50 to bigger sites with the FortiGate 100 for more throughput - up to enterprise datacenters.
The variation comes in terms of the interfaces and throughputs, but from a security perspective, you get the same benefit, irrespective of whether you have an entry-level unit or an enterprise.
We determine sizing based on multiple factors: number of users, available links, traffic types, server count, services in use, and whether services will be published.
Aside from these aspects, it demonstrated good scalability.
It supports routing, VPN setups, and traffic monitoring with additional packages like Snort and Suricata.
OPNsense is an extremely scalable solution.
Nonetheless, the product is robust, eliminating major scalability concerns.
On a scale from 1 to 10, I would rate its scalability as eight to nine.
You can operate multiple different NSvs under one management plane.
 

Stability Issues

Sentiment score
7.7
Fortinet FortiGate is praised for its dependable stability, minimal downtime, and robust performance, especially with regular firmware updates.
Sentiment score
7.5
OPNsense is highly stable and reliable, excelling in security and usability, but occasionally faces VPN and update issues.
Sentiment score
7.2
SonicWall NSv is stable and reliable, though integration challenges and limited onsite support require external assistance at times.
We're experiencing 99.999% availability consistently.
I would rate the stability of Fortinet FortiGate a ten out of ten.
Currently, we are experiencing a general outage of one of the main internet service providers of the Dominican Republic, and we have not been impacted in our operations because with SD-WAN, we have another internet service provider and we are working with the second WAN connection without any disruption.
For home and small network use, OPNsense is also reliable, providing enterprise-grade security at no cost.
OPNsense is the same, but it does have a way of installing the Realtek drivers, which gives you a lot more stability overall on the system.
The only challenge faced was its inadequacy to manage large voice traffic effectively, even with dedicated hardware.
Understanding and handling these devices onsite was limited, requiring external support.
It rates around eight to nine in terms of stability, and it is quite good.
 

Room For Improvement

Users seek improvements in FortiGate's performance, web interface, reporting, documentation, licensing, and training resources.
OPNsense's challenges include interface usability, integration issues, and the need for improved VPN, analytics, and virtualization support.
SonicWall NSv needs better pricing, enhanced reporting, improved SSL VPN, and resolves UI slowdowns, upgrades, and support issues.
Investing in a solution that can accommodate such growth would be more cost-effective than repeatedly purchasing new hardware.
While Fortinet claims to offer a comprehensive network solution, it falls short in addressing computer application issues, particularly server security.
When considering Sophos XG, which we also use, the logging and reporting functionality is notably more efficient.
For high availability, it's crucial to have a method in place where a designated component oversees the entire process.
Improved guidance on package usage and integration beyond relying on external tutorials or community support would be beneficial.
I would like the APIs to be more mature and more developed and have more options to automate threat hunting.
When the software was downloaded, optimal hardware utilization was lacking, making hardware upgrades inevitable.
Currently, we are getting challenges with user-wise reports and other reporting details.
SonicWall NSv can be improved, particularly in the SAML implementation, which was introduced in 7.2 firmware.
 

Setup Cost

Fortinet FortiGate offers robust features at a competitive price but can be costly, especially with licenses; long-term pricing negotiation advised.
OPNsense is a cost-effective, open-source firewall solution offering affordability compared to commercial firewalls, appealing to enterprises.
SonicWall NSv offers competitive pricing with varied perceived value, transparent licensing, and additional costs for specific features.
Last year, I renewed the support for three years, which can sometimes be expensive but depends on the security benefits and how it helps us.
It offers cost savings as it is generally cheaper than the competition.
It is about 20% cheaper.
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.
I would rate the pricing a nine out of ten, especially considering the availability of a free community edition.
It is free.
The Global VPN will be chargeable in our product, unlike Fortinet or Sophos, where it is free—this is a major difference.
 

Valuable Features

Fortinet FortiGate provides robust security, seamless integration, user-friendly interface, and cost-effective advanced threat management for diverse network environments.
OPNsense is user-friendly and cost-effective, offering extensive VPN, firewall features, and easy scalability with strong community support.
SonicWall NSv provides robust security features and user-friendly management, enhancing control and value for remote and cloud applications.
In terms of security, we have not experienced any security flaws or loopholes, and it has proven to be quite stable.
FortiGate has helped reduce the risk of cyberattacks that might disrupt our client's production.
These features help reduce our downtime, manage the ISPs, and deploy SLAs for all the website traffic.
The most valuable features include the basic firewall functionality and the GeoIP location services.
I can have a Wi-Fi VLAN and feel secure that the server network or the VM network that I have on a different VLAN are isolated, and they cannot talk to one another, which adds a great level of security.
It offers enterprise-grade features such as intrusion detection and prevention system, VPN support, traffic shaping, and web filtering, all without license cost.
SonicWall excelled in threat management, evident in how users handled it effectively.
The features of SonicWall NSv that are most effective in enhancing the network include the Application Firewall, which provides enhanced security to the client.
I am not limited to the global security service configuration and can have multiple different security policies.
 

Categories and Ranking

Fortinet FortiGate
Sponsored
Ranking in Firewalls
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
574
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Intrusion Detection and Prevention Software (IDPS) (1st), Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st), ZTNA (2nd), Unified Threat Management (UTM) (1st)
OPNsense
Ranking in Firewalls
3rd
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
44
Ranking in other categories
No ranking in other categories
SonicWall NSv
Ranking in Firewalls
39th
Average Rating
8.0
Reviews Sentiment
6.4
Number of Reviews
11
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 19.9%, up from 19.8% compared to the previous year. The mindshare of OPNsense is 11.3%, down from 14.1% compared to the previous year. The mindshare of SonicWall NSv is 0.2%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Market Share Distribution
ProductMarket Share (%)
Fortinet FortiGate19.9%
OPNsense11.3%
SonicWall NSv0.2%
Other68.6%
Firewalls
 

Featured Reviews

Vasu Gala - PeerSpot reviewer
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.
Moutaz Sheikh Alard - PeerSpot reviewer
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.
Robbie Dunn - PeerSpot reviewer
Has supported cloud deployments with detailed controls and could improve identity integration
SonicWall NSv offers the option for Classic or Policy Mode, which allows me to choose between the two. If I need more granular control, I would prefer to use Policy Mode. If it is a simple configuration with one network that does not require much complexity, then Classic Mode is perfect. When I use Policy Mode for more granular configurations, I can address situations where that flexibility makes a difference, such as wanting to have one network or one zone over another. I am not limited to the global security service configuration and can have multiple different security policies. SonicWall NSv has positively impacted my organization. One specific outcome I have noticed is the low cost of licensing and that it is a trusted security appliance. The low cost and trusted security have led to measurable benefits such as cost savings, which allow us to invest in other technologies.
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Comms Service Provider
9%
Manufacturing Company
8%
Financial Services Firm
6%
Comms Service Provider
16%
Computer Software Company
16%
University
6%
Manufacturing Company
6%
Computer Software Company
25%
Educational Organization
8%
Government
8%
Comms Service Provider
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business350
Midsize Enterprise130
Large Enterprise187
By reviewers
Company SizeCount
Small Business30
Midsize Enterprise5
Large Enterprise8
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise3
Large Enterprise3
 

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...
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...
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 ...
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...
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.
What is your experience regarding pricing and costs for OPNsense?
My experience with pricing, setup cost, and licensing is that since OPNsense is free, the licensing and setup was eas...
What do you like most about SonicWall NSV?
The product helps improve our security.
What is your experience regarding pricing and costs for SonicWall NSV?
I am somewhat satisfied with the price for SonicWall NSv, rating it as eight because, compared to other products, the...
What needs improvement with SonicWall NSV?
Currently, we are getting challenges with user-wise reports and other reporting details. At present, they do not prov...
 

Also Known As

No data available
No data available
SonicWall Network Security Virtual
 

Overview

 

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.
Comlogic, Depaul, Hutt City Council
Find out what your peers are saying about OPNsense vs. SonicWall NSv and other solutions. Updated: November 2025.
872,846 professionals have used our research since 2012.