Comodo Dome Firewall [EOL] vs OPNsense comparison

Xcitium and OPNsense are both solutions in the Firewalls category. Additionally, 100% of Xcitium users are willing to recommend the solution, compared to 95% of OPNsense users who would recommend it.

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Executive Summary

We performed a comparison between Comodo Dome Firewall [EOL] and OPNsense based on real PeerSpot user reviews.

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Firewalls

January 2026

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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

Featured Reviews

Vasu Gala

Manager, Information Technology Operation/Presales at TechMonarch

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.

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Walter Shelver

Owner at CableWeb

User-Friendly, improves security, and gives me more control over my VoIP

We purchased the solution and we are partners. I haven't had a chance to go through all of the features and what this solution offers, but I think that it has an integrated VPN. I am looking forward to using another VPN. I am anxious to see it, as we are going to set that up for one of the clients. At this time, I am not able to add any comments on how this solution can be improved, because this solution does what it is asked to do. I would rate this solution an eight out of ten.

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Moutaz Sheikh Alard

ISO 27001 Lead Implementer at a consultancy with 11-50 employees

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.

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Quotes from Members

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

Pros

"The solution is easy to implement and easy to configure. The most valuable feature is FortiGate’s content filtering."

"The most valuable features we found are the SD-WAN, FortiGate SD-WAN, and the standard UTM protection, among others."

"The security features are about the best that I've seen anywhere."

"It is simpler to configure. It is not like Cisco Firepower, where you go crazy trying to follow the Cisco documentation to figure out how to configure one little thing. Unlike Cisco Firepower, where you can't do everything through the web interface and you have got to do some command line stuff, Fortinet FortiGate SWG is simpler. There are four different things in Cisco to get in, which is not the case with Fortinet FortiGate SWG. It is one of my favorite solutions to work with. I would much rather work with it than Cisco Firepower, for example. Even though I've got 20 years of Cisco experience with different firewalls, I would much prefer this solution."

"Valuable features include the Web Application Firewall, and it even has DLP (data leak prevention)."

"The solution is very, very easy to use."

"The most valuable features are the possibility of having one fabric for switching on security."

"Advanced routing (RIP, OSPF, BGP, PBR). It gives you a seamless and simple integration into a large network."

More Fortinet FortiGate pros

"This solution is user-friendly."

"The most valuable features of OPNsense are the GUI and frequent updates."

"OPNsense definitely gives me peace of mind and helps my workflow because of the network isolation, as I can have multiple subnets without having to worry about one affecting the other."

"It has firewall and VPN capabilities, which are very valuable features."

"Overall, I would rate OPNsense as nine out of ten."

"What I like best about OPNsense is that, as a firewall, it's pretty good. I'm quite impressed with it. I had an excellent experience with OPNsense, which helped me achieve the targets I wanted."

"I find the solution to be user-friendly. It has a lot of reports and easy settings."

"I feel that its valuable features are that it is simple and free."

"OPNsense impacts my projects and home network positively because its cost-effectiveness is perfect for lab and enterprise setup without expensive licensing, and the flexibility, easy VLAN and DMZ configuration supports different zones such as web servers, mail servers, and log servers."

More OPNsense pros

Cons

"I wish Fortinet FortiGate's UI updates would be done in a more simplified way to improve it."

"It would be good if they had fewer updates."

"It should have a better pricing plan. It is too expensive. It should also have a more granular view of the attack. I don't have FortiAnalyzer, and it is difficult for me to have a complete view when there is an attack on my server."

"One of the most important areas for improvement for Fortinet FortiGate is the limited resources for tests."

"There could be more modifications."

"There are some problems that support cannot give you a logical reason as to why it happened. For example, I had a case where I was dealing with a WhatsApp application that was giving issues. Technical support gave more than one reason it could be giving issues, but none of them solved the problem. Eventually I solved the problem, but it was far from the solutions that support had given."

"The product has to be upgraded every few weeks."

"Fortinet FortiGate could improve by adding enhancements to FortiMail, FortiSOAR, and FortiDeceptor."

More Fortinet FortiGate cons

"I haven't seen any feature that will allow me direct authentication for a VPN solution."

"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."

"There are some add-ons that need enhancements to make management easier for users, especially the reporting features. Some reports don't show the level of detail I'm looking for, and I've had trouble installing certain add-ons, especially for Internet bandwidth shaping within my company."

"OPNsense could be improved with a better wizard, as when I first installed it, it seemed difficult to know where to go."

"You will need additional training before you can actually start to use it."

"The interface of the solution is an area with shortcomings."

"Pricing in my opinion is just too expensive. It makes no sense. It moves in the direction of a monopoly."

"An area for improvement in OPNsense is the hardware, which needs to be updated more frequently. DNS blocking is another good feature I want to be added to the solution. pfSense has a peer-blocking feature that I also want to see in OPNsense."

"There is room for improvement in SSL inspection."

More OPNsense cons

Pricing and Cost Advice

"The price for the device and software is high. However, the solution is of good quality and has a lot of features."

"Fortinet Secure SD-WAN delivered the lowest total cost of ownership (TCO) per Mbps among all other vendors."

"I rate FortiGate Next Generation Firewall a five out of ten for pricing."

"The price of Fortinet FortiGate is reasonable for an SME."

"The product is a little bit expensive."

"We pay about $4,000 for a yearly license, and there aren't any additional fees."

"Its pricing is good. The advantages of Fortinet FortiGate over its competitors include good pricing and meeting our requirements at a lower cost."

"Fortinet FortiGate IPS' licensing is quite simple to understand."

More Fortinet FortiGate pricing and cost advice

Information not available

"The solution is not expensive."

"It's a free solution."

"It is open source and free."

"We are not paying any licensing fees. OPNsense is completely free for us."

"It's not expensive."

"Its pricing is unbeatable in comparison to other firewalls. You can have a small instance that could be €80 a month with the hardware underneath. Azure Firewall and FortiGate are out of the question at this price. If you are on a public cloud, you need the underlying infrastructure. Other than that, there is no additional cost. If you have it on-prem, you have to buy the server or the appliance. The hardware cost is replaced with the infrastructure cost in the cloud. You also have costs for the public IPs and underlying VMs, but that's not related to OPNsense. It would be the same for a FortiGate deployment on Azure. You need a FortiGate license, and you need the underlying infrastructure that scales up depending on your needs."

"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."

"We are using the paid version."

More OPNsense pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

12%

Comms Service Provider

Manufacturing Company

Financial Services Firm

No data available

Comms Service Provider

17%

Computer Software Company

11%

Manufacturing Company

University

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	357
Midsize Enterprise	133
Large Enterprise	188

No data available

By reviewers
Company Size	Count
Small Business	30
Midsize Enterprise	5
Large Enterprise	8

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...

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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...

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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 ...

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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...

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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.

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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...

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Comparisons

Sophos Firewall vs Fortinet FortiGate

Compared 20% of the time

Cisco Secure Firewall vs Fortinet FortiGate

Compared 13% of the time

Netgate pfSense vs Fortinet FortiGate

Compared 6% of the time

Palo Alto Networks NG Firewalls vs Fortinet FortiGate

Compared 3% of the time

SonicWall TZ vs Fortinet FortiGate

Compared 3% of the time

More Fortinet FortiGate Competitors

Cisco Secure Firewall vs Comodo Dome Firewall [EOL]

Compared 41% of the time

More Comodo Dome Firewall [EOL] Competitors

Netgate pfSense vs OPNsense

Compared 46% of the time

IPFire vs OPNsense

Compared 11% of the time

Sophos Firewall vs OPNsense

Compared 9% of the time

Sophos UTM vs OPNsense

Compared 3% of the time

Untangle NG Firewall vs OPNsense

Compared 2% of the time

More OPNsense Competitors

Product Reports

Buyer's Guide

Fortinet FortiGate

January 2026

Download Fortinet FortiGate product report

Buyer's Guide

Firewalls

January 2026

Download Comodo Dome Firewall [EOL] product report

Buyer's Guide

OPNsense

January 2026

Download OPNsense product report

Also Known As

Fortinet FortiGate Next-Generation Firewall

Dome Firewall

No data available

Overview

Fortinet FortiGate is a versatile network security tool offering features like VPN, firewall, web filtering, intrusion prevention, and scalability. It is known for its performance and integration with other Fortinet products, making it a preferred choice for robust cybersecurity.

Fortinet FortiGate stands out as a comprehensive cybersecurity solution with strong performance and ease of configuration. It delivers unified threat management, integrating features such as dynamic routing, SD-WAN support, and centralized management. Despite its strengths, improvements in the web interface's stability, pricing structures, and reporting capabilities are needed. Users seek better integration with third-party tools and automation advancements to enhance the experience further. These enhancements, alongside improvements in bandwidth management and the reduction of licensing costs, are points of interest for users looking to capitalize on FortiGate's extensive capabilities.

What are Fortinet FortiGate's key features?

VPN: Ensures secure remote connections.
Firewall: Protects against unauthorized access.
Web Filtering: Blocks malicious sites and content.
Application Control: Manages and controls applications.
Intrusion Prevention: Detects and prevents vulnerabilities.
SSL Inspection: Enhances security by inspecting encrypted traffic.

What benefits should be considered when evaluating Fortinet FortiGate?

Affordability: Offers cost-effective security solutions.
Reliability: Known for consistent and stable performance.
Integration: Seamlessly integrates with other Fortinet products.
Comprehensive Protection: Provides broad threat protection capabilities.

Fortinet FortiGate is widely implemented across industries as a primary firewall system for securing internet gateways and safeguarding data centers. It supports businesses in achieving SD-WAN integration and enhances cybersecurity by providing essential features like antivirus, web filtering, and application control. Enterprises utilize FortiGate for securing remote connections and ensuring compliance with security standards, making it adaptable for different network sizes and industries.

Fortinet

Maintaining day-to-day operations - and growing your business - requires network traffic to constantly flow into and out of your internal network. A lot of that traffic is trusted. But much of it isn't, and you need to be able to distinguish between the two. Comodo Dome Firewall is a unified threat management system that helps to secure all ports and protocols and delivers a host of security controls.

Xcitium

OPNsense is an adaptable open-source firewall and routing platform appreciated for its flexibility, scalability, and user-friendly interface. It is equipped with robust security features and offers excellent reporting and visibility, essential for small businesses and home setups.

OPNsense stands out for its modular design, allowing cost-effective customization. This system supports VPNs and various firewall capabilities, making it suitable for securing networks from malicious traffic. Its frequent updates and extensive documentation, combined with a supportive online community, enhance user experience. However, there is room for improvement in integration with virtual servers and Azure. Scalability and hardware updates are important for large-scale environments, and users desire more reliable VPN solutions and enhanced threat intelligence tools.

What are OPNsense's most important features?

Flexibility: Easily customizable due to its open-source nature.
Robust Security: Advanced security features for network protection.
User-Friendly Interface: Simplified management and configuration.
Frequent Updates: Regular improvements and new features.
Dense Documentation: Extensive resources and community support.

What benefits should users look for in reviews?

Cost-Effectiveness: Open-source design reduces costs.
Scalability: Ability to grow with business needs.
Customizability: Tailored solutions for different requirements.
Community Support: Access to a strong network of resources and peers.

OPNsense is implemented in industries requiring VPN and firewall functions, supporting site-to-site connections, protecting servers, and managing commercial network traffic. Companies apply it for security, UTM, SD-WAN, content filtering, intrusion detection, and prevention, utilizing its open-source nature and effectiveness as a next-generation firewall.

OPNsense

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

Information Not Available

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.

Find out what your peers are saying about Fortinet, Netgate, Sophos and others in Firewalls. Updated: January 2026.

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