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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
7.2
Number of Reviews
318
Ranking in other categories
Firewalls (2nd), Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st)
OPNsense
Average Rating
8.2
Reviews Sentiment
7.2
Number of Reviews
39
Ranking in other categories
Firewalls (3rd)
Zyxel Unified Security Gateway
Average Rating
6.0
Reviews Sentiment
6.9
Number of Reviews
3
Ranking in other categories
Unified Threat Management (UTM) (14th)
 

Featured Reviews

EhabAli - PeerSpot reviewer
Efficient, user-friendly, and affordable
In the past, NSS Labs was utilized to test files and verify the numbers and datasheets. It would be beneficial to have an organization or testing lab that can verify the numbers in our datasheets since changes are frequently made, which can be inconvenient for review. For instance, when comparing different competitors such as Forcepoint, Palo Alto, and Check Point, the throughput or numbers in the datasheet may be lower than the actual numbers. Conversely, Fortinet typically reports very high numbers, but they cannot be replicated in the real world. Therefore, it would be advantageous for them to partner with a neutral testing organization such as NSS Labs to validate these numbers, thus providing more credibility and comfort to everyone regarding the accuracy of the datasheets. 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. This tool shows a lot of promise and is very good. Making it free would help many companies deliver their products in a more efficient and integrated way. It would also be more valuable to include the tool with the firewall package or license instead of having to pay extra for it. Paying extra puts more pressure on small companies to deliver the firewall and complete the configuration, especially if they have hundreds or thousands of policies. It's very painful to move through these policies line by line. The stability has room for improvement. When it comes to Secure SD-WAN, everything is fine. They are going the right way. SD-WAN is very promising. They can provide the SD-WAN solution separately, but they will not take this approach because even the smallest firewall can support the features, so there is no need to have a separate service or appliance. They are following the right steps, and there is nothing to be improved. Feature-wise, I'm really satisfied with the new release, and the features they have added. For now, it's fine.
Eddy Ramirez - PeerSpot reviewer
Good interface and firewall capabilities and overall easy to use
The security has improved as we can isolate the network. We can do attrition prevention via a tool that comes with the solution. We can have a VPN solution in place for those that work from home, outside the network, in a secure manner. We also like that it offers good authentication. It offers radius-based authentication, which has been useful for the company. The main platform is under the Open VPN firewall. The solution has high availability. When we have different ISPs, we can actually load balance those links or actually put some priority or even classify the traffic that might go into one ISP or another.
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

"The CLI and GUI do a good job of putting a lot at your fingertips."
"The solution is easy to configure and maintain remotely."
"Initial setup is straightforward. There weren't too many issues with setting it up. It takes one hour or so."
"The email protection and VPN features are the most valuable."
"The pricing is great and very reasonable."
"The most important features of Fortinet FortiGate are the Intrusion Prevention System (IPS) and firewall control applications."
"We can detect any attack of viruses or malware at the first point of contact."
"The usage in general is pretty good."
"The most valuable features of OPNsense are the GUI and frequent updates."
"The initial implementation process is simple."
"URL blocking, Wireguard, Tail Scale, Engine Blocker, and VPN are the most valuable features for me."
"The most valuable features in OPNsense are reporting and visibility."
"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."
"The DNS-level filtering is impressive for thwarting time scanners."
"The solution is good for a basic firewall for a small business or for home use."
"It has an open license. It works very well, and there is an update every month."
"This is a capable appliance and the standard features work well for us."
"The most valuable features of the solution stem from web filtering, malware protection, and antivirus."
"The solution can scale well."
 

Cons

"The sniffing packets or packet captures, can be simplified and improved because it's a little confusing."
"They should improve the interface to make it more user-friendly."
"The pricing could always be better."
"The performance could be a bit better. Right now, I find it to be lacking. Having good performance is very important for our work."
"In the next release, I would like to see the interface simplified to be more user-friendly."
"Usually, we sell the bundle with the UTM or threat management piece with IPS, IDS. Other providers, such as Palo Alto, are ahead in terms of safe functionality. So, for me, delivering truly safe service is probably something that still needs to be improved."
"The anti-malware engine could use an upgrade."
"Technical support needs to be improved."
"The user interface could be improved, and the DNS section should be more intuitive."
"SD-WAN (software-defined wide area network) is integrated into some restricted service providers for OPNSense."
"The solution could be more secure."
"The IPS solution could be more reliable."
"I would like to see better SD-WAN performance."
"We did not like the fact that you have to configure everything with the graphic user interface. We have used other firewalls, such as FortiGate, that you can configure via code. OPNsense is not easy to integrate. When you are deploying via GitHub or another source repository, this is not possible. That's one thing we didn't like much."
"There should be more technical documentation."
"Its interface should be a little bit better."
"The product has some scalability and data management issues where improvements are required."
"Although manageable, the user interface is a little bit slow and could be improved."
"Sometimes it reboots when you least expect it, and that's the main issue."
 

Pricing and Cost Advice

"Its pricing is good. It's average or normal as compared to Palo Alto and Check Point firewalls."
"By default, they give SD-WAN along with the firewall. They don't have separate licensing for the SD-WAN functionality. However, they have security licenses that are sold separately on a subscription basis. Customers can consume these security features to protect their users from internet traffic."
"I think that the pricing is fair."
"I had to pay for the license for the firewall, but it is guaranteed to have updates. I expect a good service for it. It was about €1000 for a year, and there was no additional cost."
"Setup costs and pricing depends on many variables, but it's mostly affordable."
"Their licensing costs are annual. The UTM feature license along with their support is called FortiCare. We include that as a part of the annual maintenance cost. Palo Alto or Juniper also have an annual subscription charge for UTM. Price, of course, can always be more competitive, but it is not the most expensive product. The price-performance ratio is quite high for FortiGate."
"The price of FortiGate is average and I would say that based on the top five products available on the market, it is in the affordable range."
"The price is fair for what we get with 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."
"OPNsense is open source software so at this time it is free for us to use."
"The solution is not expensive."
"As an appliance, it's in the medium price range."
"It is free."
"I would rate the pricing three out of ten."
"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 would rate the pricing a nine out of ten, especially considering the availability of a free community edition."
"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
Educational Organization
22%
Computer Software Company
14%
Comms Service Provider
7%
Manufacturing Company
6%
Computer Software Company
16%
Comms Service Provider
13%
Government
7%
Educational Organization
6%
Computer Software Company
20%
Comms Service Provider
17%
Retailer
6%
Real Estate/Law Firm
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

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?
I consider the pricing of OPNsense to be high when compared with other market products. However, as a free firewall p...
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?
The price of Zyxel Unified Security Gateway is good compared to other similar products in the market.
What needs improvement with Zyxel Unified Security Gateway?
If you have very secure data, Zyxel Unified Security Gateway will not be very useful. My company doesn't have to deal...
 

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: March 2025.
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