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OPNsense vs Palo Alto Networks CN-Series comparison

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Comparison Buyer's Guide

Executive Summary

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
Sponsored
Ranking in Firewalls
2nd
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
411
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 CN-Series
Ranking in Firewalls
30th
Average Rating
9.6
Reviews Sentiment
7.4
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 20.8%, up from 17.8% compared to the previous year. The mindshare of OPNsense is 11.6%, down from 17.6% compared to the previous year. The mindshare of Palo Alto Networks CN-Series is 0.1%, up from 0.0% 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.
Ahmed_Shalaby - PeerSpot reviewer
Application control excels and integration with monitoring system boosts efficiency
I am an integrator working with Palo Alto Networks CN-Series and Panorama. I have been involved with the implementation of Palo Alto Networks CN-Series The stability of Palo Alto Networks CN-Series is excellent. Application control is one of the most valuable features. Its monitoring capability…

Quotes from Members

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

Pros

"It has upscaled our security posture, especially regarding external connectivity, because any access or connection from the company has to go through the Fortinet FortiGate firewall."
"The features that I have found most valuable are the SD-WAN and their IP4 policy."
"Good anti-malware and web filtering features."
"It is easy to use and update the software version. It is also useful for integration with other Fortinet products, because my office and company use Fortinet solutions."
"Whenever I need something, Fortinet improves and updates the software for me."
"FortiGate improved our security. It's one of the best hardware firewalls."
"ROI is exceptionally good."
"Fortinet FortiGate is scalable for our users. Right now, we have almost 70 users. We do not have any plan to increase our usage of FortiGate. For maintaining the firewall solution, one staff member is enough."
"OPNsense is highly stable."
"We have found pretty much all the features of the solution to be valuable."
"The solution is user-friendly and easy to configure."
"The most valuable features of OPNsense are the GUI and frequent updates."
"The solution is good for a basic firewall for a small business or for home use."
"The most valuable feature is the Dual WAN in OPNSense, which offers advanced capabilities."
"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."
"URL blocking, Wireguard, Tail Scale, Engine Blocker, and VPN are the most valuable features for me."
"The stability of Palo Alto Networks CN-Series is excellent."
"The app inspection is very helpful for network security."
 

Cons

"Fortinet needs more memory to save the log files. We need it to save the logs on the hardware and not in the cloud. I know this feature is available in FortiCloud, but if we need this log locally, it is not available."
"The solution's framework needs to be frequently updated in order to have a stable solution."
"It would be nice if backups could more easily migrate between different models."
"The solution could be more secure and stable."
"The price of FortiGate should be reduced because there are some other leading products that are cheaper."
"The anti-malware engine could use an upgrade."
"Compared to some other products, the DLP is not at par for the moment."
"While FortiGate is cheaper than most other solutions, we're seeing increased license renewal costs. Most of our clients are asking for more significant discounts because the price is going up."
"On the customer-side, because I'm a small business, I need a cheaper or free solution option."
"pfSense has better performance and quicker updates."
"OPNsense showed me some problems when using it in different environments. The problem is integration with a virtual server."
"While they do have paid options that actually gives better features, for most of the clients, if they tend to take a paid option will instead opt for Fortinet."
"OPNsense struggles to handle large volumes of voice traffic, indicating scalability issues in that specific use case."
"SD-WAN (software-defined wide area network) is integrated into some restricted service providers for OPNSense."
"There are issues with stability and reliability."
"The reporting part could be better."
"I'd like to see more IOPs features."
"Palo Alto Networks CN-Series could improve on its pricing as it is quite expensive."
 

Pricing and Cost Advice

"Easy to understand licensing requirements."
"Fortinet has one or two license types, and the VPN numbers are only limited by the hardware chassis make."
"A year or two years back, its price was competitive and reasonable. That was one of the reasons that people easily switched to Fortinet. Over the last two years, the prices have increased drastically. However, the prices of others have also increased. An advantage is there from the price point but not as much as it was previously."
"There is a subscription-based model to use Fortinet FortiGate. We pay annually for the solution along with the support. If you want to have all the updates, and security patches you will need to renew your support."
"The pricing is comprehensive and clear. You can easily understand what you are purchasing, including which features correspond to each license and maintenance contract. Overall, the information is straightforward. Additionally, compared to other vendors, their prices are competitive."
"Pricing and licensing is a little bit complicated in FortiGate. They are always on the higher side. This is one issue that we always raise with the company that they should reduce the price according to Indian market requirements. There are no costs in addition to the standard licensing fees."
"The pricing or licensing of Fortinet FortiGate is quite effective as it offers different bundles that aggregate most required features, while also allowing clients the option to select specific components alone."
"There is a license to use Fortinet FortiGate."
"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."
"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."
"OPNsense is a well known open-source tool."
"It is open source and free."
"There are no licensing costs for OPNsence."
"It costs about $1000."
"The solution is not expensive."
"I would rate the pricing three out of ten."
Information not available
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Comms Service Provider
9%
Manufacturing Company
7%
Financial Services Firm
6%
Computer Software Company
16%
Comms Service Provider
15%
University
6%
Manufacturing Company
6%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?
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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...
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.
What is your experience regarding pricing and costs for Palo Alto Networks CN-Series?
The pricing of Palo Alto Networks CN-Series is quite expensive, rating around eight on a scale of one to ten for cost.
What needs improvement with Palo Alto Networks CN-Series?
Palo Alto Networks CN-Series could improve on its pricing as it is quite expensive. The SD-WAN implementation using P...
What is your primary use case for Palo Alto Networks CN-Series?
I am an integrator working with Palo Alto Networks CN-Series ( /products/palo-alto-networks-cn-series-reviews ) and P...
 

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.
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Find out what your peers are saying about OPNsense vs. Palo Alto Networks CN-Series and other solutions. Updated: July 2025.
865,384 professionals have used our research since 2012.