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

"It's a firewall that secures our internal network. I have been using it since 2013, and I find that most of the features are advanced, and very user friendly."

"Fortinet FortiGate is a simple solution, and the integration with other solutions in the Fortinet portfolio, such as the Security Fabric integration, is competitive."

"In terms of ROI, they're inexpensive, and because they're inexpensive, they're just everywhere, in the Federal Government, schools, everywhere where budgets are fairly tight, and it is a very good product."

"Fortinet FortiGate is stable; I am told that Fortinet FortiGate is one of the best solutions available, and I believe it."

"The detection is great."

"FortiGate Next Generation Firewall's design is good...I am very impressed with the product's stability."

"It's very easy to configure."

"The best feature of Fortinet FortiGate is the IPS or IDS implementation."

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 feature of OPNsense is compatibility."

"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."

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

"What I like the most about OPNsense is that it offers an easy-to-use dashboard for device management and control."

"The initial implementation process is simple."

"The VPN server feature is the most valuable. It is integrated with Radius and AAA for doing accounting and authentication. Insight view is also an important feature for me at this time. It allows me to assess our network traffic. I also like the firewall feature. The BSD kernel has a packet filter. It is one of the most solid frameworks for firewalls. Its user interface is one of the best interfaces I have used."

"We have found pretty much all the features of the solution to be valuable."

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

More OPNsense pros

Cons

"Technical Support: This is where Fortinet stumbles. The support is farmed out overseas to techs that are not very knowledgeable about the Fortinet products."

"Technical support could be better. You don't always get the level of help you need right away."

"It needs to improve its ISP load balancing."

"Over time, there is a lot of worry about insecurity. For big accounts, we are not able to satisfy the customer with the Fortinet firewall because they ask for a lot of features."

"Cisco Meraki products are rising very quickly in the cloud and the connected era. Meraki products offer much better ROI, upgradability, and manageability."

"The support we receive when we need to upgrade is not satisfactory and has room for improvement."

"At the moment, if you don't integrate any third-party solution with a simple Fortinet FortiGate box, the box would not function as expected for superb protection."

"Some of the software stability could improve."

More Fortinet FortiGate cons

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

"The monitoring is a little complicated and I have tried to use a plug-in, but it's quite complicated to configure."

"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."

"The scalability needs improvement."

"To use Intrusion detection and Antivirus Plugin it is necessary to configure proxy; without a proxy, you cannot use the ClamAV antivirus plugin."

"The reporting part could be better."

"In our experience, OPNsense showed me some problems when using it in different environments. The problem is integration with a virtual server."

"I confirm that I am currently still working with OPNsense and still using their product. However, because of the hardware that I am using, sometimes it ends up freezing quite often, especially the interfaces, most of the busy interfaces."

More OPNsense cons

Pricing and Cost Advice

"The price is fair compared to the other competitors."

"The product pricing is reasonable."

"If you compare Fortinet FortiGate with Sophos and other firewall products available in the market, this solution is affordable."

"Go for long term pricing negotiated at the time of purchase."

"As far as I'm aware, in our case, it's just a yearly pricing arrangement with no additional licensing costs."

"The pricing of Fortinet FortiGate is average, not cheap or overly expensive compared to other firewall solutions in the market. It's effective and affordable for customers."

"We just pay a flat monthly fee to the vendor for the support."

"I rate FortiGate's pricing a five out of ten."

More Fortinet FortiGate pricing and cost advice

Information not available

"It's a free solution."

"The price of OPNsense is good."

"It is free."

"We are using the paid version."

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

"I would rate the pricing a nine out of ten, especially considering the availability of a free community edition."

"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."

"OPNsense is open source software so at this time it is free for us to use."

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

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...

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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?

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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