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OPNsense vs Zyxel Unified Security Gateway 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
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
411
Ranking in other categories
Firewalls (2nd), Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st)
OPNsense
Average Rating
8.4
Reviews Sentiment
6.7
Number of Reviews
40
Ranking in other categories
Firewalls (3rd)
Zyxel Unified Security Gateway
Average Rating
6.6
Reviews Sentiment
4.9
Number of Reviews
4
Ranking in other categories
Unified Threat Management (UTM) (14th)
 

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.
Alexander Azikov - PeerSpot reviewer
A robust appliance that is reasonably priced and straightforward to set up
Although manageable, the user interface is a little bit slow and could be improved. There are two user interface options available, namely the basic and the advanced. The basic UI is not very good and doesn't have a lot of features, although it is fast. The advanced UI allows me to do whatever I want, but this is where the issue of speed exists. At one of our sites, the CPU utilization was very high, and for no reason. Technical support needs to be more responsive to requests.

Quotes from Members

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

Pros

"What's most important is the ease of use."
"It is stable and easy to use. There are a lot of good resources available on the web."
"I would advise others considering or evaluating the Fortinet FortiGate to buy it."
"Fortinet FortiGate appears to be scalable."
"The security features are about the best that I've seen anywhere."
"The best feature of Fortinet FortiGate is SD-WAN; it ensures continuous connectivity by taking over during link failures, preventing any downtime for the company."
"Fortinet FortiGate provides excellent security against ransomware attacks."
"FortiGate's web and URL filtering are unlike any other firewall I've used. The functionality of URL filtering in those solutions is problematic because everything is encrypted, and firewalls can't break that encryption protocol. Fortinet has an SSL proxy, so the encryption is done before the packet ever leaves the FortiGate. The URL filter is definitely one of the most helpful features."
"The solution is user-friendly and easy to configure."
"The feature I find most valuable, is that the program helped me to realize all the requested functionality that was needed."
"I find the solution to be user-friendly. It has a lot of reports and easy settings."
"It's open source."
"One of the most valuable features is the network checking. Additionally, the firewall and web filtering functionalities are highly useful."
"The most valuable features are reporting, the Sensei plugin, and firewall capabilities."
"The solution has high availability."
"OPNsense is highly stable."
"The most valuable features of the solution stem from web filtering, malware protection, and antivirus."
"The solution can scale well."
"This is a capable appliance and the standard features work well for us."
 

Cons

"Fortinet needs to overhaul its documentation."
"For the migration, everyone has a firewall in use and I am selling Fortinet. Typically, I am replacing another firewall. Previously, there was a tool available to convert configurations from one firewall, such as Palo Alto, to Fortinet, but this tool is no longer free. If it could be made free again, it would be very beneficial."
"The solution's framework needs to be frequently updated in order to have a stable solution."
"The platform's compatibility with Wi-Fi equipment needs improvement."
"The feedback that I have received is that the performance could be better, and the user experience is not as good compared to a previous solution we used. It could be more user-friendly. Of course, it still works fine for our operations."
"Price, of course, can always be more competitive or better."
"The initial setup and configuration are not intuitive and require training."
"The user interface of the Fortinet FortiGate management console could be more intuitive and user-friendly, and the log analysis and reporting features could be enhanced to provide more flexibility and customizable insights."
"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 interface of the solution is an area with shortcomings."
"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."
"The only thing that I would like to see improved is the Insight or the NetFlow analysis part. It would be good to have the possibility to dig down on the Insight platform. Right now, we can easily do only a few analyses. If this page becomes more powerful, it surely will be a well-adopted platform."
"The solution could be more secure."
"The user interface could be improved, and the DNS section should be more intuitive."
"The IPS solution could be more reliable."
"There should be more technical documentation."
"Although manageable, the user interface is a little bit slow and could be improved."
"The product has some scalability and data management issues where improvements are required."
"Sometimes it reboots when you least expect it, and that's the main issue."
 

Pricing and Cost Advice

"They are very competitive, but we like to have the factory warranty taken care of."
"Fortigate's pricing is competitive."
"In terms of the market, it's not a cheap product, but it's cost-effective."
"If you are looking for a quality product, it will come at a higher price. Expecting them to be significantly cheaper is unrealistic. In terms of pricing, it is a bit costly. However, the functionality and support offered are worth it."
"It is not a very costly product if you compare it with other products. The return on investment is also good. If you compare the return of investment and money that you are spending on this product with Palo Alto, Cisco, Check Point, and other solutions, the investment is very less. We are happy with this solution. The optional licenses are there, and you can choose which one you want and which one to avoid."
"Fortinet prices are around $600 for the small 40F model, and for licenses, the simplest option is about $300 for a year. They sell licenses that can last for 1, 2, 3, or 5 years."
"It is expensive. You need to pay for the subscription every year, which is very expensive. The subscription includes technical support and hardware exchange in case of failure."
"FortiGate's pricing falls within the mid-range when compared to other leading firewall solutions."
"It is free."
"It's not expensive."
"I would rate the pricing three out of ten."
"We are using the paid version."
"It costs about $1000."
"I would rate the pricing a nine out of ten, especially considering the availability of a free community edition."
"OPNsense is a well known open-source tool."
"OPNsense is an open-source solution and it is free to use."
"The price of Zyxel Unified Security Gateway is good compared to other similar products in the market."
"This gateway is pretty cheap."
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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%
Comms Service Provider
21%
Computer Software Company
15%
Retailer
7%
Outsourcing Company
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

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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 do you like most about Zyxel Unified Security Gateway?
The most valuable features of the solution stem from web filtering, malware protection, and antivirus.
What is your experience regarding pricing and costs for Zyxel Unified Security Gateway?
I cannot definitively comment on whether Zyxel Unified Security Gateway is an affordable product as I haven't done co...
What needs improvement with Zyxel Unified Security Gateway?
The integration capability is quite challenging. The system is very complicated, and many features are hidden. I'm lo...
 

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. Zyxel Unified Security Gateway and other solutions. Updated: July 2025.
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