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Cisco Secure Firewall vs OPNsense comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 16, 2024

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
Ranking in Firewalls
2nd
Average Rating
8.4
Reviews Sentiment
7.2
Number of Reviews
327
Ranking in other categories
Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st)
Cisco Secure Firewall
Ranking in Firewalls
7th
Average Rating
8.2
Reviews Sentiment
7.1
Number of Reviews
410
Ranking in other categories
Cisco Security Portfolio (4th)
OPNsense
Ranking in Firewalls
3rd
Average Rating
8.2
Reviews Sentiment
7.2
Number of Reviews
39
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 21.1%, up from 17.7% compared to the previous year. The mindshare of Cisco Secure Firewall is 5.8%, up from 5.5% compared to the previous year. The mindshare of OPNsense is 12.3%, down from 17.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls
 

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.
Maharajan S - PeerSpot reviewer
Enhances security with precise access control but has integration challenges
Overall, I would rate the product six out of ten. Because of the support and cost, I moved away from Cisco, but otherwise, it is a good product. Recommendation depends on the requirement. If lacking a proper team and being dependent on the OEM and partner, Cisco is not suitable. However, if the team is qualified with Cisco-certified people and the requirement is a big network, it can be considered. In today's hybrid work world, having an expanded gateway is more typical than having a single one. Thus, Cisco is unlikely to be recommended for a hybrid requirement unless in-house skills align. Otherwise, depending on partners and Cisco, it can be a risk. I rate the overall solution six out of ten.
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.

Quotes from Members

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

Pros

"FortiGate SD-WAN facilitated a smooth transition for our customers between their two internet service providers, ensuring uninterrupted connectivity without any downtime."
"The most useful functionality of Fortinet FortiGate is the user interface, multiple engines, and their cloud with the latest integrations. Additionally, the Security Fabric tool is very good."
"Overall, the pricing of the solution is very good. The product offers good value."
"Whenever we raise a complaint with FortiGate, their response and resolution times are minimal."
"It's quite comfortable to handle the FortiGate firewall."
"Valuable features include the Web Application Firewall, and it even has DLP (data leak prevention)."
"The inspection and web security features are most valuable."
"The product offers very good security."
"I work with Cisco and other partners, but the Cisco team is the best team in our country. When I call them, they always help us."
"It has definitely improved our organization. It gives us remote connectivity, helps workers connect remotely, and also gives us good connectivity to our other branches."
"VPN and firewall are good features."
"The configuration was kind of straightforward from the command line and also from the ASDM. It was very easy to manage by using their software in Java."
"The most valuable Cisco Secure Firewall features are options, features, and ease of deployment because it's an appliance."
"The initial setup is easy."
"Implementing Cisco Secure Firewall has saved us time because we rely on most of the out-of-the-box signatures. It has reduced the time and effort spent in configuration within the security network."
"The initial setup was not complex."
"OPNsense is easy to scale when running on the hardware."
"The DNS-level filtering is impressive for thwarting time scanners."
"It has an open license. It works very well, and there is an update every month."
"OPNsense is very stable, easy to upgrade, and maintain."
"I feel that its valuable features are that it is simple and free."
"What I like the most about OPNsense is that it offers an easy-to-use dashboard for device management and control."
"The graphic user interface is very good and it is user-friendly which makes the product easy-to-use."
"The solution has high availability."
 

Cons

"The performance could be a bit better. Right now, I find it to be lacking. Having good performance is very important for our work."
"The platform's interface could improve."
"Difficult to add or define, and not that easy to configure and manage."
"In the next release, I would like to see the interface simplified to be more user-friendly."
"It would be nice if FortiGate incorporated some built-in endpoint protection features. I would also like a built-in SOC dashboard for managing multiple Fortinet firewalls."
"The stability of Fortinet FortiGate could improve."
"It should come integrated or have its own type of network monitor tool in a module. There should just be one package, and you are good to go."
"They have to just improve its performance when we enable all UTM features. When you enable all the features, the performance of FortiGate, as well as of Sophos and SonicWall, goes down."
"The pricing is a bit high."
"The cost is very high. Most organizations cannot afford it."
"I'm not a big fan of the FDM (Firepower Device Manager) that comes with Firepower. I found out that you need to use the Firepower Management Center, the FMC, to manage the firewalls a lot better. You can get a lot more granular with the configuration in the FMC, versus the FDM that comes out-of-the-box with it. FDM is like Firepower for dummies."
"In the past though, colleagues have had issues during the upgrade process. The failover didn't work and production was down."
"Implementations require the use of a console. It would help if the console was embedded."
"The inclusion of an autofill feature would improve the ease of commands."
"Cisco suffers from some integration issues with other products... There is a problem with the Cisco Catalyst Switches in terms of assembling bursts and having them interact properly with the Cisco Firepower."
"It would be better if we could manage all of our firewalls as a set rather than individually. I would like to see a single pane of glass type of option. We also use another vendor's firewalls and they have a centralized management infrastructure that we have implemented. This infrastructure is a bit easier to manage."
"The interface of the solution is an area with shortcomings."
"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."
"On the customer-side, because I'm a small business, I need a cheaper or free solution option."
"The solution would not be suitable for anything large-scale."
"SD-WAN (software-defined wide area network) is integrated into some restricted service providers for OPNSense."
"There is room for improvement in SSL inspection."
"The interface needs to be simplified. It is not user-friendly."
"The scalability needs improvement."
 

Pricing and Cost Advice

"Fortinet FortiGate has different licensing models, depending on what you're going to do. Services included would depend on the license model. Licenses can be renewed annually."
"Fortigate's pricing is competitive."
"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."
"Pricing for this product is comparatively lower than other products. It's an affordable solution, but when expanding the number of users, they'll ask you to replace the model, so that's an added cost."
"The beauty is the price performance ratio is great with FortiGate. It provides all the features we needed and the price is comparable with others' firewalls. The price is quite competitive with the firewalls with similar features."
"Fortinet costs are 25% lower than the high-cost provider. There is an equipment cost and a recurring monthly cost for licenses and technical support."
"It is cost-effective, and provides a good value for your money. The pricing, and license renewal, is very reasonable for us."
"Fortinet FortiGate is cheaper than Palo Alto. It is about 20% cheaper."
"It was initially heavy on my pocket, but it soon actualised its worth."
"They're not too expensive. They're a little more expensive than other products, but you are getting the name, the company, and the support."
"This product requires licenses for advanced features including Snort, IPS, and malware detection."
"In the past, I encountered several difficulties and misunderstandings with Cisco licensing, but now the situation has improved. The Cisco Smart Software portal is an excellent resource for keeping track of, upgrading, and researching information related to Smart Licensing and other relevant topics. It is extremely helpful. Unfortunately, since it is not my money and there is only one vendor, I am unable to provide any comments on the prices. Nevertheless, the system, along with its provision through the Cisco Smart Software portal, as well as the traditional license and subscription models, are excellent and highly beneficial."
"Licensing, recently, has been getting more complicated. In particular, the Smart Licensing that came out is quite complicated. I don't know what's going on.... They call it Smart, but it's complicated. I prefer the traditional license where you buy it once."
"It definitely competes with the other vendors in the market."
"The pricing for Cisco products is higher than others, but Cisco is a very good, strong, and stable technology."
"The Firepower series of appliances is not cheap. I just got a quote recently for six firewalls that was in the range of over half-a-million dollars. That's what could push us to look to other vendors..."
"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."
"It is not an expensive product. Basically, I deployed it because it was the fastest solution to satisfy our needs in open source."
"As an appliance, it's in the medium price range."
"The price of OPNsense is good."
"I would rate the pricing a nine out of ten, especially considering the availability of a free community edition."
"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."
"I would rate the pricing three out of ten."
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Comparison Review

it_user206346 - PeerSpot reviewer
Mar 11, 2015
Cisco ASA vs. Palo Alto Networks
Cisco ASA vs. Palo Alto: Management Goodies You often have comparisons of both firewalls concerning security components. Of course, a firewall must block attacks, scan for viruses, build VPNs, etc. However, in this post I am discussing the advantages and disadvantages from both vendors concerning…
 

Top Industries

By visitors reading reviews
Educational Organization
21%
Computer Software Company
14%
Comms Service Provider
7%
Manufacturing Company
6%
Educational Organization
41%
Computer Software Company
13%
Manufacturing Company
4%
Government
4%
Computer Software Company
16%
Comms Service Provider
13%
Government
7%
Educational Organization
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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...
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...
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 ...
Which is better - Fortinet FortiGate or Cisco ASA Firewall?
One of our favorite things about Fortinet Fortigate is that you can deploy on the cloud or on premises. Fortinet Fort...
How does Cisco's ASA firewall compare with the Firepower NGFW?
It is easy to integrate Cisco ASA with other Cisco products and also other NAC solutions. When you understand the Cis...
Which is better - Meraki MX or Cisco ASA Firewall?
Cisco Adaptive Security Appliance (ASA) software is the operating software for the Cisco ASA suite. It supports netw...
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...
 

Also Known As

FortiGate 60b, FortiGate 60c, FortiGate 80c, FortiGate 50b, FortiGate 200b, FortiGate 110c, FortiGate, Fortinet Firewall
Cisco Adaptive Security Appliance (ASA) Firewall, Cisco ASA NGFW, Adaptive Security Appliance, Cisco Sourcefire Firewalls, Cisco ASAv, Cisco Firepower NGFW Firewall
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
There are more than one million Adaptive Security Appliances deployed globally. Top customers include First American Financial Corp., Genzyme, Frankfurt Airport, Hansgrohe SE, Rio Olympics, The French Laundry, Rackspace, and City of Tomorrow.
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 Cisco Secure Firewall vs. OPNsense and other solutions. Updated: April 2025.
847,772 professionals have used our research since 2012.