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OPNsense vs Palo Alto Networks VM-Series 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
7.4
Fortinet FortiGate provides cost-effective security, reducing operational costs and enhancing efficiency with quick ROI for enterprises.
Sentiment score
2.5
Entities benefited from rapid returns and cost savings with OPNsense, offering superior threat management compared to Check Point and FortiNet.
Sentiment score
7.1
Palo Alto Networks VM-Series offers strong ROI with enhanced security, increased agility, and significant time savings for users.
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.
Customers can see data within a week, indicating a quick return on investment.
 

Customer Service

Sentiment score
6.9
Fortinet FortiGate support varies, praised for responsiveness but criticized for slow responses and regional inconsistencies in efficiency.
Sentiment score
6.4
Many users rely on forums for support, expressing mixed satisfaction with OPNsense's accessibility, cost, and technical support.
Sentiment score
7.6
Palo Alto Networks VM-Series support is responsive and professional, but some users note room for improvement in efficiency.
I would rate their support for FortiGate a nine out of ten.
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 mainly rely on community support since the solution is open source.
The support quality could be improved.
Resolving issues promptly.
They are responsive and provide high-quality assistance.
 

Scalability Issues

Sentiment score
7.3
Fortinet FortiGate is scalable with ease of expansion, though hardware integration and sizing can pose challenges for users.
Sentiment score
6.5
OPNsense is scalable for diverse organizations, efficiently supporting different user volumes, with some challenges in high-volume voice traffic.
Sentiment score
7.6
Palo Alto Networks VM-Series is scalable, satisfying users despite some cloud integration challenges, and suitable for diverse enterprises.
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.
In my organization, there are 400 users, and OPNsense serves as our gateway and proxy for all of them.
Aside from these aspects, it demonstrated good scalability.
It supports routing, VPN setups, and traffic monitoring with additional packages like Snort and Suricata.
They are easy to upgrade, and with credit licensing, they scale effectively according to demand.
The solution is scalable and can easily handle an increase in the number of users.
It is easy to use with an excellent graphical user interface and extensive documentation, which contributes to its high scalability.
 

Stability Issues

Sentiment score
7.9
Fortinet FortiGate is favored for its stability and reliability, with some performance issues resolved through updates and sizing.
Sentiment score
8.5
OPNsense is stable with high ratings, despite issues with VPN failover, occasional bugs, and hardware compatibility concerns.
Sentiment score
8.3
Palo Alto Networks VM-Series is praised for stability and reliability, despite occasional bugs and manual interventions during upgrades.
We're experiencing 99.999% availability consistently.
I would rate the stability of Fortinet FortiGate a ten out of ten.
We have not had any problems with the operating systems or maintenance of subscriptions.
Stability-wise, I rate the solution a ten out of ten.
It just doesn't respond, so I have to restart it over and over again to try to figure out what the problem is.
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.
Hardware is generally very stable.
I have not experienced any major problems or downtime.
Perfection is unlikely as the dynamic nature of traffic and constant changes can result in occasional bugs despite regular updates.
 

Room For Improvement

Fortinet FortiGate users seek improvements in stability, integration, scalability, cost, and advanced features like monitoring and zero-trust technology.
OPNsense faces challenges with integration, user interface, documentation, scalability, performance, and security features, needing enhancements in various areas.
Palo Alto Networks VM-Series needs better integration, scalability, documentation, cloud compatibility, and improved features to address user concerns and performance.
Investing in a solution that can accommodate such growth would be more cost-effective than repeatedly purchasing new hardware.
The constant daily revisions necessitate meticulous identification of the relevant documents to prevent the use of outdated information that could jeopardize our environment.
While Fortinet claims to offer a comprehensive network solution, it falls short in addressing computer application issues, particularly server security.
For high availability, it's crucial to have a method in place where a designated component oversees the entire process.
The user experience when we create policies can be made easier.
Some of the features include classified traffic and better blocking of newly registered DNS domains.
Integration with CSIRT across all use levels would make it easier for administrators to stay updated on the blocked entities without manual intervention.
Most customers go for partner-enabled support, which involves multiple layers, leading to delays.
When managing the firewall, it involves a Strata Cloud web browser that requires improvement to enhance deployment ease and call center efficiency.
 

Setup Cost

Fortinet FortiGate offers various licensing models, balancing affordability and performance, though renewals can increase costs.
OPNsense is a cost-effective, flexible solution for enterprises, preferred over costly alternatives like FortiGate and Palo Alto.
Palo Alto Networks' VM-Series pricing is high but justified by advanced security features, with flexible licensing aiding budget management.
FortiGate is priced lower than Palo Alto.
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 is about 20% cheaper.
It's a free solution.
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.
Palo Alto is expensive in terms of pricing, particularly when comparing features to cost.
The cost involves purchasing through a vendor, which might mark up due to the supply chain.
Pricing for Palo Alto Networks is higher than other OEMs, but considering the robustness and features, it gains customer trust.
 

Valuable Features

Fortinet FortiGate provides robust security features, user-friendly management, and scalability, making it a preferred choice for organizations.
OPNsense is valued for its flexibility, user-friendly interface, robust features, frequent updates, and compatibility with useful plugins.
Palo Alto Networks VM-Series excels in threat prevention, scalability, and user-friendly management, integrating advanced security features and cloud services.
The firewall, IPS, and VPN functions are the most valuable features.
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.
The most valuable features include the basic firewall functionality and the GeoIP location services.
One of the most valuable features is the network checking.
OPNsense is easy to use and open source.
We use these tools to prevent all known and unknown threats using Palo Alto Networks' Wildfire and other data filtering tools to gather information, analyze traffic, manage malicious traffic, and offer visibility, control, and attack prevention.
Palo Alto's robust threat intelligence supports new updates, and I can open cases directly with their Threat Intelligence team.
The DNS security significantly enhances security through visibility and detection, allowing control over crucial traffic like DNS, which is often exploited by ransomware.
 

Categories and Ranking

Fortinet FortiGate
Sponsored
Ranking in Firewalls
2nd
Average Rating
8.4
Reviews Sentiment
7.2
Number of Reviews
370
Ranking in other categories
Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st)
OPNsense
Ranking in Firewalls
3rd
Average Rating
8.4
Reviews Sentiment
6.7
Number of Reviews
40
Ranking in other categories
No ranking in other categories
Palo Alto Networks VM-Series
Ranking in Firewalls
13th
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
64
Ranking in other categories
Advanced Threat Protection (ATP) (9th)
 

Mindshare comparison

As of July 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 21.2%, up from 17.7% compared to the previous year. The mindshare of OPNsense is 11.4%, down from 17.7% compared to the previous year. The mindshare of Palo Alto Networks VM-Series is 0.9%, up from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
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.
Akram Zaki Hussein - PeerSpot reviewer
Robust network security and management offering a user-friendly interface, open-source flexibility, and cost-effectiveness, with challenges regarding initial setup and the absence of official support
The interface is user-friendly, but there's room for improvement in terms of intuitiveness. The bundle management aspect requires additional attention to make it more intuitive, especially for inspecting high-level traffic. This is crucial, especially for larger companies where the existing features might not be the most optimal choice, given limitations like printer constraints. For high availability, it's crucial to have a method in place where a designated component oversees the entire process. 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. It would be beneficial if OPNsense supported additional virtualization platforms like Hyper-V from Microsoft and VMware, similar to how Kaspersky has integrated them.
RonnieYazdani - PeerSpot reviewer
User-friendly CLI and efficient dashboard streamline operations with robust security features
I find Palo Alto Networks VM-Series easy to deploy, and none of my customers have had significant complaints. My customers have high certifications provided by Palo Alto Networks. The friendly dashboard and the ability to easily command and use the CLI make Palo Alto Networks VM-Series a better product. It offers robust solutions, making it valuable to my customers.
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Educational Organization
12%
Comms Service Provider
8%
Manufacturing Company
7%
Computer Software Company
16%
Comms Service Provider
14%
Government
6%
Educational Organization
6%
Computer Software Company
16%
Financial Services Firm
14%
Manufacturing Company
9%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

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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 ...
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?
The pricing is competitive when compared to vendors like Palo and FortiNet.
Features comparison between Palo Alto and Fortinet firewalls
In the best tradition of these questions, Feature-wise both are quite similar, but each has things it's better at, it...
How does Azure Firewall compare with Palo Alto Networks VM Series?
Both products are very stable and easily scalable. The setup of Azure Firewall is easy and very user-friendly and the...
 

Also Known As

FortiGate 60b, FortiGate 60c, FortiGate 80c, FortiGate 50b, FortiGate 200b, FortiGate 110c, FortiGate, Fortinet Firewall
No data available
No data available
 

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.
Warren Rogers Associates
Find out what your peers are saying about OPNsense vs. Palo Alto Networks VM-Series and other solutions. Updated: June 2025.
859,687 professionals have used our research since 2012.