

Cisco Secure Firewall and OPNsense compete in the network security market, with Cisco offering comprehensive support and pricing, while OPNsense excels with superior features.
Features: Cisco Secure Firewall provides advanced threat protection, robust VPN capabilities, and application visibility. OPNsense is known for its flexibility due to its open-source nature, strong intrusion detection and prevention systems, and an extensive plugin system.
Room for Improvement: Cisco Secure Firewall can reduce costs and enhance its feature set to compete better with alternatives like OPNsense. OPNsense could simplify deployment and offer more intuitive customer support systems for less technical users.
Ease of Deployment and Customer Service: Cisco Secure Firewall offers seamless deployment backed by extensive documentation and professional support, providing high customer satisfaction. OPNsense, while requiring a more technical setup, benefits from strong community support and detailed guidance.
Pricing and ROI: Cisco Secure Firewall requires higher initial investment but focuses on long-term ROI through effective strategies. OPNsense offers a cost-effective entry with its open-source nature, providing significant initial savings and a favorable balance of cost and functionality for budget-conscious buyers.
There is always a return on investment because you find you invest heavily, but your environment is secure and then you are at rest; you do not need to panic.
The biggest return on investment when using Cisco Secure Firewall is that there's no waste in any infrastructure cost and licensing costs for us.
From my point of view, the biggest return on investment when using Cisco Secure Firewall is the single pane of glass, which is a huge plus for us.
The network attacks reduced by approximately 60% after using that, even without customizing the custom configuration yet.
For a very little investment, I was able to increase the security of my network.
I have to provide many logs, yet problems remain unresolved, often requiring workarounds rather than solutions.
I have been working with them on firewalls, wireless, switching, and routing, and the support is the best.
They have expertise and provide solutions for the most difficult problems.
Compared to some open-source projects with weak support, OPNsense stands out for having both a strong community and commercial backing options.
I mainly rely on community support since the solution is open source.
If you say you do not have one, it is finished. This is where the monopoly starts.
When something happens in the device, the failover happens very quickly without any interruption.
Cisco Secure Cloud now allows us to potentially take the management functions of Cisco Secure Firewall, move it into the cloud, and integrate it with other Cisco security products, managing everything from one single pane.
I rate the scalability as a number 10.
I use Zenarmor, pinning it to one core for packet inspection, and the CPU performance seems very good.
OPNsense's scalability is excellent; I just need to resize my hardware and upgrade the server, and voilà, I am good to go.
In theory, OPNsense can handle small home networks and even large enterprise environments if deployed on sufficiently powerful hardware or virtualized on a clustered system.
We have often encountered split-brain scenarios during failover processes and code upgrades, which have been persistent problems for us.
We work with a cluster with high availability, so if something goes wrong, we have it functioning.
I have Cisco Secure Firewall in hospitals, hotels, airports, and shopping malls, and I have never faced complaints of a Cisco Secure Firewall crash or anything similar.
For home and small network use, OPNsense is also reliable, providing enterprise-grade security at no cost.
The only challenge faced was its inadequacy to manage large voice traffic effectively, even with dedicated hardware.
At the latest code level, I haven't experienced any crashes.
My ongoing complaint for the last six years has been the lack of CLI functionality, which hinders my ability to work on the firewall, alongside concerns regarding deployment time.
The GUI is useless for me and frustrates me to a very high degree, which led me to switch to the CLI for configuration.
Firewall as a Service can scale to a very large extent because it is a cloud-based offering that can scale up to a very large number, which is not a problem.
Enhancing its performance for significant amounts of data traffic would make it closer to a perfect solution.
It would be beneficial if they could create some videos on how to set it up themselves.
The documentation should be clearer because I faced some difficulties navigating many options.
It's good to have them, however, it costs us a lot.
Basically, the license for the VPNs is for all the interfaces, and that is the thing that is really expensive compared with Palo Alto.
It's considered a premium, but people pay that price for Cisco.
I consider the pricing of OPNsense to be high when compared with other market products.
OPNsense is free, the licensing and setup was easy.
What stands out positively about Cisco is their training and support, which has effectively prepared engineers to work with their products.
This is very important to my organization, as we work extensively with security because we are a bank, so we can keep the data safe.
Cisco Secure Firewall allows me to safeguard Layer 7 or Layer 3 and manage the security rules with the business needs of my organization.
The most valuable features include the basic firewall functionality and the GeoIP location services.
I can have a Wi-Fi VLAN and feel secure that the server network or the VM network that I have on a different VLAN are isolated, and they cannot talk to one another, which adds a great level of security.
It offers enterprise-grade features such as intrusion detection and prevention system, VPN support, traffic shaping, and web filtering, all without license cost.
| Product | Mindshare (%) |
|---|---|
| Cisco Secure Firewall | 8.1% |
| OPNsense | 7.0% |
| Other | 84.9% |

| Company Size | Count |
|---|---|
| Small Business | 196 |
| Midsize Enterprise | 130 |
| Large Enterprise | 243 |
| Company Size | Count |
|---|---|
| Small Business | 32 |
| Midsize Enterprise | 6 |
| Large Enterprise | 8 |
Cisco Secure Firewall offers advanced security features like integration with Cisco products, role-based administration, and scalable VPN capabilities. Its application visibility and deep packet inspection are key in reducing IT workload while ensuring robust protection.
Known for its stability and comprehensive threat protection, Cisco Secure Firewall integrates seamlessly with Cisco Talos to enhance security intelligence. It streamlines operations with a strong application visibility and management console, helping secure infrastructure. However, there are noted challenges such as a less intuitive interface, complex cloud service integrations, and performance issues during updates. The pricing and licensing can be cumbersome compared to competitors, and there is room for expanded application and threat visibility.
What are the key features of Cisco Secure Firewall?Industries deploy Cisco Secure Firewall for tasks such as safeguarding data centers, traffic segmentation, and perimeter security. It is essential for filtering strategies at organizations with corporate networks and VPN hubs. Companies leverage it for edge security, network segmentation, intrusion prevention, and managing access control to ensure robust protection against threats.
OPNsense is a robust open-source platform known for its intuitive GUI, firewall capabilities, and seamless network management. It provides essential security features such as VPN and IDS/IPS, catering to organizations looking for reliable and custom-configurable solutions.
Renowned for its user-centric approach, OPNsense integrates functionality with scalability, making it a preferred choice for both on-premises and cloud deployments. Employing regular updates, OPNsense enhances security and offers modular configurations, DNS-level filtering, content control, and load balancing. Users value the platform's resilience and its ability to support features like WireGuard and Zenarmor for improved security management, especially appreciated by budget-conscious entities. However, complexity in its interface and reporting, along with challenges in cloud integration and API, require attention. Users also suggest improvements in VPN and firewall customization and seek better documentation and tools, considering the current pricing structure.
What are the key features of OPNsense?In industries ranging from corporate enterprises to home offices, OPNsense is implemented for securing server data, managing VPN links, and enforcing firewall policies. It is particularly favored for providing secure remote access, efficient network management, and the flexibility needed for specific business requirements, whether deployed in cloud environments or traditional setups.
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