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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
318
Ranking in other categories
Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st)
Cisco Secure Firewall
Ranking in Firewalls
5th
Average Rating
8.2
Reviews Sentiment
7.1
Number of Reviews
409
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 March 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 20.8%, up from 17.8% compared to the previous year. The mindshare of Cisco Secure Firewall is 5.6%, up from 5.5% compared to the previous year. The mindshare of OPNsense is 12.8%, down from 17.3% 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

"The features that I have found most valuable are the SD-WAN and their IP4 policy."
"All of the features of Fortinet FortiGate are useful and the security protection is good."
"The network security and cloud security are most valuable."
"Our project needs to link two sides through the internet. One of these was in Cairo and the other in another city. We used FortiGate as the integrating solution between the two locations, i.e. the Fortinet 30E & 100E."
"It has very easy management and an amazing ETM configuration."
"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."
"The simplicity of the product is great. It's very easy to use, which is a compliment we get all the time in terms of feedback."
"The most valuable feature of this solution is Quota."
"The feature that I found most valuable is the overall stability of the product."
"For companies prioritizing security, the optimal choice is one that offers a range of feeds to cater to diverse needs. This is particularly crucial for organizations implementing DDoS mitigation. The preferred solutions typically align with the top server vendors, with Cisco, Forti, and Barracuda consistently ranking among the top three vendors we collaborate with."
"The stability of the solution is very good. We can see that it gets even better with every release."
"We feel that we can trust the security, and our assets and business are well protected. We need to have trust in it, but we also see that it works. We have a security company that has tested that it works."
"The best solutions for our company are those we have yet to implement so it will be even better in the future for us than it already is."
"The most valuable feature is that it's secure."
"An efficient, easy to deploy and dependable firewall solution."
"Firepower NGFW has improved my organization in several ways. Before, we were trying to stamp out security threats and issues, it was a one-off type of way to attack it. I spent a lot of manpower trying to track down the individual issues or flare-ups that we would see. With Cisco's Firepower Management, we're able to have that push up to basically one monitor and one UI and be able to track that and stop threats immediately. It also gives us a little more granularity on what those threats might be."
"OPNsense could improve by making the configuration more web-based rather than shell or command-line-based."
"The most valuable features in OPNsense are reporting and visibility."
"I have found the solution has some great features overall, such as guest access capabilities, dashboards, and ease of use. There is plenty of documentation and support and it has the plugins that I needed."
"The system in general is quite flexible."
"One of the most valuable features is the network checking. Additionally, the firewall and web filtering functionalities are highly useful."
"OPNsense is very stable, easy to upgrade, and maintain."
"The technical support is very good."
"The most valuable features are reporting, the Sensei plugin, and firewall capabilities."
 

Cons

"In the next release, maybe the documentation on how to use this solution could be improved."
"I would suggest that Fortinet add sandboxing to their solution."
"Fortinet FortiGate needs to improve to be on par with its competitors, such as Palo Alto and Sophos. They are the market leaders. Fortinet FortiGate needs to improve its capabilities. However, we are happy with Fortinet FortiGate."
"There are some tiny bugs that sometimes affect the operations. In the past revision of it, there was a bug. Because of the bug, we had to downgrade the version. It happened only with the last revision."
"They are doing good, but they can improve the distributor assignment. The availability of the product and the timeline of delivery are the main things. The distribution should be swift, and the distributor should not reach out to end customers directly. They should work as a distributor. There should also be one more local distributor. Currently, there is only one distributor in Pakistan, and the rest of them are in UAE. It is difficult to work with only one distributor. Sometimes, you don't get along with the same distributor, and that's why they should have one more distributor. Their licensing should also be improved. The activation or renewal of the product should be done from the date of renewal, not from the date on which the license expired."
"The SD-WAN functionality is a bit overly complicated and not fully documented."
"The solution's framework needs to be frequently updated in order to have a stable solution."
"Fortinet needs to overhaul its documentation."
"I would like for the user interface to be easier for the admin and network admin. I would also like to be able to access everything from the GUI interface. The way it is now, it needs somebody experience in iOS to be able to operate it. I would like to have a GUI interface."
"The Cisco ASA device needs overall improvement, as configurations alone do not completely secure my network."
"We would like to see MS Word BPM as a feature."
"I would like to see the inclusion of more advanced antivirus features in the next release of this solution."
"They really need support for deployment."
"It doesn't have Layer 7 security."
"Critical bugs need to be addressed before releasing the version."
"One of my colleagues is using the firewall as an IPS, but he is worried about Firepower's performance... With the 10 Gb devices, when it gets to 5 Gbps, the CPU usage goes up a lot and he cannot manage the IPS."
"Given that OPNsense plays a pivotal role as a firewall, safeguarding against various threats, having a reliable backup ensures uninterrupted protection even if unforeseen events impact the primary virtual machine."
"I would like better documentation concerning the provided packages and their integration."
"The logging could improve in OPNsense."
"On the customer-side, because I'm a small business, I need a cheaper or free solution option."
"OPNsense showed me some problems when using it in different environments. The problem is integration with a virtual server."
"The reporting part could be better."
"SD-WAN (software-defined wide area network) is integrated into some restricted service providers for OPNSense."
"The solution could be more secure."
 

Pricing and Cost Advice

"I do not have first-hand experience with the rice of Fortinet FortiGate, but I have heard the price was reasonable."
"It's expensive, but compared to the competition it's okay."
"It was worth the money overall. It's good value."
"It is expensive. You need to pay for the subscription every year, which is very expensive. The subscription includes technical support and hardware exchange in case of failure."
"We pay for the solution annually."
"Pricing is good. They offer a lot of things, the most important is the support. Every time you upgrade your license, you also get insurance for the equipment. If you have any problem with equipment, they send in new equipment."
"The product pricing is reasonable."
"The price of FortiGate is good."
"The product cost is a little high. It is a little bit on the high side, and it should be a little bit cost-friendly."
"The price of this solution is not good or bad."
"The one-time cost is affordable, but the maintenance cost and the Smart Net costs need to be reduced. They're too high."
"The pricing is too high and the licensing is too confusing."
"There are licensing costs."
"Pricing is the same as other competitors. It is comparable. The licensing has gotten better. It has been easier with Smart Licensing."
"We have a perpetual license for all of our firewalls. For some of the features, we purchase them on demand. The pricing is decent but it could always be cheaper, we would be happier."
"Everything with Cisco is expensive. My advice is that there are a lot better options out in the market now."
"OPNsense is open source software so at this time it is free for us to use."
"The solution is not expensive."
"It is open source and free."
"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."
"It's not expensive."
"There are no licensing costs for OPNsence."
"As an appliance, it's in the medium price range."
"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."
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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
22%
Computer Software Company
14%
Comms Service Provider
7%
Manufacturing Company
6%
Educational Organization
42%
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: March 2025.
842,388 professionals have used our research since 2012.