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

March 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 very user friendly. The user interface in particular is quite nice."

"FortiGate is a rapidly growing vendor with a wide range of ready-to-use products. Their delivery time is remarkably quick, usually between two to four weeks."

"The solution is stable; it doesn't have any issues with bugs and glitches, it doesn't crash or freeze, and it's very reliable."

"Mainly the FortiGate reporting system is very good. It guides us through all the expectations of security. Fortinet provides us all that we need for security. Also, Fortinet FortiGate is a next-generation firewall. It is much more advanced than others."

"It is easy to manage, and it doesn't need much knowledge from the team; it is a stable device, and there are many features that are included out of the box."

"The IPS and the application control feature are the most valuable."

"The most valuable feature is the policy routing and application control."

"The inspection and web security features are most valuable."

More Fortinet FortiGate pros

"This solution is user-friendly."

"This solution has given me more security, I have more control over my VoIP solution, and I can pick up separate VNs."

"The most valuable features in OPNsense are reporting and visibility."

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

"YouTube provides video explanations, and that brings you to speed, instead of sitting down and reading a 200-page document on the product."

"The tool's integration is more like a button press."

"OPNsense is highly stable."

"The most valuable thing about this product is that it is very easy to use, the graphic user interface is very good, and it is user-friendly."

"It has an open license. It works very well, and there is an update every month."

"Its pricing is unbeatable in comparison to other firewalls."

More OPNsense pros

Cons

"I use the FortiGate 60D model and realized the 300Mbps bandwidth limitation. Because it is a product that offers many services, I think it could have greater bandwidth capacity."

"The IPS monitoring can be improved."

"The firmware updates are sometimes not stable. The stability issues can vary, sometimes happening once a month or quarterly. New firmware updates can occasionally introduce bugs, causing some policies to fail. We then have to raise a ticket, and Fortinet usually provides a fix within a few days."

"With the addition of some features, it is possible that FortiGate can be used in all verticals."

"Difficult to add or define, and not that easy to configure and manage."

"MTBF: Hardware failure is more common when compared to SonicWall or Cisco ASA."

"I think they need to improve more in order to be a competitor with the leaders of the field."

"After four years it has started to fail. The firewall engine is not so strong as of now, in my opinion."

More Fortinet FortiGate cons

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

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

"The reporting part could be better."

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

"On the customer-side, because I'm a small business, I need a cheaper or free solution option."

"The support for OPNsense is good because we have documents available on the internet. The support could improve a little."

"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."

"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."

More OPNsense cons

Pricing and Cost Advice

"Compared to other firewall products, it's a little cheaper in terms of pricing."

"The price of Fortinet FortiGate is better than Cisco, Check Point, and Palo Alto. In terms of pricing, it's probably a better-priced firewall solution overall."

"The pricing is flexible."

"It's very competitive."

"Some of our customers are using Sophos and SonicWall due to price concerns, as they can't manage the pricing of Fortinet FortiGate."

"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."

"The solution requires a license annually, it is not a user license, you can have as many users as your want. I must renew the license regularly per device."

"If the customer is looking for SD-WAN, it comes free with FortiGate."

More Fortinet FortiGate pricing and cost advice

Information not available

"It's a free solution."

"OPNsense is a well known open-source tool."

"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."

"OPNsense is an open-source solution and it is free to use."

"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."

"As an appliance, it's in the medium price range."

"The solution is not expensive."

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

More OPNsense pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

11%

Comms Service Provider

10%

Manufacturing Company

Financial Services Firm

No data available

Comms Service Provider

18%

Computer Software Company

11%

Manufacturing Company

University

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	361
Midsize Enterprise	135
Large Enterprise	190

No data available

By reviewers
Company Size	Count
Small Business	31
Midsize Enterprise	6
Large Enterprise	8

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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?

Setup cost is almost zero as one can simulate the whole environment using open source version. Pricing seems fair eno...

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Comparisons

Sophos Firewall vs Fortinet FortiGate

Compared 19% of the time

Cisco Secure Firewall vs Fortinet FortiGate

Compared 13% of the time

Netgate pfSense vs Fortinet FortiGate

Compared 4% of the time

Palo Alto Networks NG Firewalls vs Fortinet FortiGate

Compared 4% of the time

Check Point Quantum Force (NGFW) vs Fortinet FortiGate

Compared 3% of the time

More Fortinet FortiGate Competitors

Cisco Secure Firewall vs Comodo Dome Firewall [EOL]

Compared 44% of the time

More Comodo Dome Firewall [EOL] Competitors

Netgate pfSense vs OPNsense

Compared 51% of the time

IPFire vs OPNsense

Compared 8% of the time

Sophos Firewall vs OPNsense

Compared 7% 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

March 2026

Download Fortinet FortiGate product report

Buyer's Guide

Firewalls

March 2026

Download Comodo Dome Firewall [EOL] product report

Buyer's Guide

OPNsense

March 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: March 2026.

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