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Featured Review
Find out what your peers are saying about Kerio Control vs. OPNsense and other solutions. Updated: November 2021.
552,695 professionals have used our research since 2012.
Quotes From Members

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

Pros
"The most important features are the intrusion prevention engine and the application visibility and control. The Snort feature in Firepower is also valuable.""It has a good security level. It is a next-generation firewall. It can protect from different types of attacks. We have enabled IPS and IDS.""I have access to the web version of Cisco Talos to see the reputation of IP addresses. I find this very helpful. It provides important information for my company to obtain the reputation of IP addresses. The information in Talos is quite complete.""One of the most valuable features is the AMP. It's very good and very reliable when it comes to malicious activities, websites, and viruses.""I like the firewall features, Snort, and the Intrusion Prevention System (IPS).""Provides good integrations and reporting.""If you compare the ASA and the FirePOWER, the best feature with FirePOWER is easy to use GUI. It has most of the same functionality in the Next-Generation FirePOWER, such as IPS, IPS policies, security intelligence, and integration and identification of all the devices or hardware you have in your network. Additionally, this solution is user-friendly.""The most valuable feature that Cisco Firepower NGFW provides for us is the Intrusion policy."

More Cisco Firepower NGFW Firewall Pros »

"It is very comprehensive and simple. It has all the active protections. It's updated. We love that you can set how often it is updated so you can work what is right for you. A large company with a lot of bandwidth can update the virus definitions and security definitions hourly, if they want. A smaller site that's remote, where maybe updating the definitions will eat into the bandwidth, we can schedule those more to go later at night. It's very flexible and works for us in all types of situations. This is great because then we don't have to learn seven different products to be able to work with seven different scenarios.""The comprehensiveness of the security features that Kerio Control provides us with is good. Before GFI had it, they would have more updates. The updates have been slower, but I like the things that they keep adding like the ability to block by country. I use pretty much every feature.""The traffic insight page or the administrative portal is really helpful because you can see all the internet usage down to the point where you can see if it's big files or streams. It gives us a good view of what the internet usage is of users who are coupled to an IP address. That way, if there are problems with, for example, a lot of data usage or problems with the connection, we can narrow it down to a single user or server and address the problem. It's really helpful for diagnostic data.""Instead of using a cloud-based product for accessing information, and putting my data at risk in the cloud and in someone else's hands, it has allowed me to use a VPN and access my data directly from a laptop when I am out in the field. That has made my life a lot easier, where I'm able to access any information I need to be able access, basically on demand, with an Internet connection. That alone has been great.""The ease of use in the GUI itself is the most valuable feature. The GUI is really the best part of it. We like the traffic rules so we can control who can get to what. It's easy to determine the flow of the traffic itself so we aren't having to guess through command lines and reading out basically command-driven output. It's just a very easy-to-use interface. The interface is the best part of the product.""Kerio is a lot clearer to set up to do particular things, whereas when I do it on a Cisco or a FortiGate I have to go fight with it per week sometimes to do something I can do in 20 minutes on Kerio.""We also like the security. We can control what sites users can go to and we can make sure that where they're going is appropriate and that it's work-related.""The user interface and the ease of use are pretty good. Everything fits together so nicely."

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"The system in general is quite flexible.""The most valuable features are reporting, the Sensei plugin, and firewall capabilities.""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 solution is good for a basic firewall for a small business or for home use.""The interface and the dashboard are the most valuable features of this solution.""The graphic user interface is very good and it is user-friendly which makes the product easy-to-use.""We have found pretty much all the features of the solution to be valuable.""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."

More OPNsense Pros »

Cons
"The solution could offer better control that would allow the ability to restrictions certain features from a website.""The initial setup can be a bit complex for those unfamiliar with the solution.""The intelligence has room for improvement. There are some hackers that we haven't seen before and its ability to detect those types of attacks needs to be improved.""It's mainly the UI and the management parts that need improvement. The most impactful feature when you're using it is the user interface and the user experience.""Cisco Firepower NGFW Firewall can be more secure.""An area of improvement for this solution is the console visualization.""One feature I would like to see, that Firepower doesn't have, is email security. Perhaps in the future, Cisco will integrate Cisco Umbrella with Firepower. I don't see why we should have to pay for two separate products when both could be integrated in one box.""We cannot have virtual domains, which we can create with FortiGate. This is something they should add in the future. Additionally, there is a connection limit and the FMC could improve."

More Cisco Firepower NGFW Firewall Cons »

"I would like to be able to automatically send email from Kerio Control and have it tell me what my external IPs are, because on one of my lines I have a fixed IP address and on the other it is variable. If there were a permanent way for me to figure out, "Okay, my current external VPN and my firm IP is this," it would help. I need to know the IP address to connect with the VPN and, at the moment, one of the lines sometimes changes its IP address without me knowing it. It's a hassle to figure out what it is.""The comprehensiveness of the security features could be improved upon. However, for the most part, it is pretty good. They could add more logs. I would like to see more detailed reporting, custom reporting from the logs, and more of a streamlined interface for certain aspects.""When we did our last update, we had some trouble with the initial syncing process to get our messaging to go through. But we were also moving a store and a lot was changing during that process. I don't think it was on Kerio's end. It just coincided with the update. Once we got our third-party IT guy involved it was resolved very quickly.""The solution should offer more dashboards.""I would like the customer statistics to be more user-friendly. It should explain more what users have been doing throughout the day. Sometimes, it'll just say they downloaded a big file. Meanwhile, they were connected through a VPN.""My experience with the solutions technical support is fine but they could be faster in responding.""If I would suggest anything, it would be to expand on its multifactor authentication to be a little bit more user-friendly. They should do multifactor authentications for the client itself perhaps, rather than served on a webpage, in a page hijack, that might be more user-friendly, but I don't have a lot of complaints about it. It's doing its job. You have to have a certain amount of skills to configure these things anyway, the ones that we use on-site doing point-to-point, and we've been tricked up a few times with their interfaces.""The overall speed needs improvement. Internet connectivity speed needs to be improved somehow."

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"The solution would not be suitable for anything large-scale.""There are issues with stability and reliability.""There should be more technical documentation.""The logging could improve in OPNsense.""The only thing that I would like to see improved is the Insight or the NetFlow analysis part. It would be good to have the possibility to dig down on the Insight platform. Right now, we can easily do only a few analyses. If this page becomes more powerful, it surely will be a well-adopted platform.""I would like to see better SD-WAN performance.""The ability to set the VPN IP address would be a welcome addition.""The interface needs to be simplified. It is not user-friendly."

More OPNsense Cons »

Pricing and Cost Advice
"Cisco is not for a small mom-and-pop shop because of the cost, but if you're in a regulated industry where a breach could cost you a million dollars, it's a bargain.""The solution was chosen because of its price compared to other similar solutions.""The price of Firepower is not bad compared to other products.""Pricing is the same as other competitors. It is comparable. The licensing has gotten better. It has been easier with Smart Licensing.""When we are fighting against other competitors for customers, whether it is a small or big business, we feel very comfortable with the price that Firepower has today.""It definitely competes with the other vendors in the market.""The price for Firepower is more expensive than FortiGate. The licensing is very complex. We usually ask for help from Solutel because of its complexity. I have a Cisco account where I can download the VPN client, then connect. Instead, I create an issue with Solutel, then Solutel solves the case.""When we purchased the firewall, we had to take the security license for IPS, malware protection, and VPN. If we are using high availability, we have to take a license for that. We also have to pay for hardware support and technical support. Its licensing is on a yearly basis."

More Cisco Firepower NGFW Firewall Pricing and Cost Advice »

"The price is fine.""It gets expensive pretty quickly if you need to purchase license packs.""It's too expensive. The license, in the last year or so, has gone up by over a £100. We're almost being out-priced by the annual license at the minute.""The yearly maintenance fee is a bit high for the Kerio Control Boxes. The end of life for the devices is kind of short. It seems like they're making you upgrade within a short period of time. They should at least allow five years, but it seems like they are changing their end of life to be shorter to generate revenue.""The price of the solution is reasonable. For additional costs, you can add on more features such as antivirus.""GFI has made a stupid decision regarding small office licensing. For offices where there are only three to five employees and had five years towards a five user product, they now force these customers to a 10-year user license. I really don't understand it. It's a stupid decision for the small offices who want a good solution for security because they'll probably decide to go to another product. Why should they buy something that they don't use?""It gives us a lot. It does prove to be a very robust product for the cost.""I think it is a bit on the pricey side, but it's okay. I've got 50 licenses which I think is $250 a year or something like that."

More Kerio Control Pricing and Cost Advice »

"OPNsense is an open-source solution and it is free to use.""As an appliance, it's in the medium price range.""OPNsense is open source software so at this time it is free for us 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.""OPNsense is a well known open-source tool.""The solution is not expensive."

More OPNsense Pricing and Cost Advice »

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Questions from the Community
Top Answer:  When you compare these firewalls you can identify them with different features, advantages, practices and… more »
Top Answer:  The Cisco Firepower NGFW Firewall is a very powerful and very complex piece of anti-viral software. When one considers… more »
Top Answer: It is easy to integrate Cisco ASA with other Cisco products and also other NAC solutions. When you understand the Cisco… more »
Top Answer: The price of the solution is reasonable. For additional costs, you can add on more features such as antivirus.
Top Answer: For those who want a good firewall solution, this is the one. I rate Kerio Control a nine out of ten.
Top Answer: The stability of Kerio Control is good.
Top Answer: Two of the most common and well recognized firewalls, PfSense and OPNsense both support site-to-site IPsec VPN and… more »
Top Answer: The system in general is quite flexible.
Top Answer: The main cost is the hardware. We don't pay anything for the software.
Comparisons
Also Known As
Cisco Firepower NGFW, Cisco Firepower Next-Generation Firewall, FirePOWER, Cisco NGFWv
Learn More
OPNsense
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Overview

Cisco NGFW firewalls deliver advanced threat defense capabilities to meet diverse needs, from
small/branch offices to high performance data centers and service providers. Available in a wide
range of models, Cisco NGFW can be deployed as a physical or virtual appliance. Advanced threat
defense capabilities include Next-generation IPS (NGIPS), Security Intelligence (SI), Advanced
Malware Protection (AMP), URL filtering, Application Visibility and Control (AVC), and flexible VPN
features. Inspect encrypted traffic and enjoy automated risk ranking and impact flags to reduce event
volume so you can quickly prioritize threats. Cisco NGFW firewalls are also available with clustering
for increased performance, high availability configurations, and more.
Cisco Firepower NGFWv is the virtualized version of Cisco's Firepower NGFW firewall. Widely
deployed in leading private and public clouds, Cisco NGFWv automatically scales up/down to meet
the needs of dynamic cloud environments and high availability provides resilience. Also, Cisco NGFWv
can deliver micro-segmentation to protect east-west network traffic.
Cisco firewalls provide consistent security policies, enforcement, and protection across all your
environments. Unified management for Cisco ASA and FTD/NGFW physical and virtual firewalls is
delivered by Cisco Defense Orchestrator (CDO), with cloud logging also available. And with Cisco
SecureX included with every Cisco firewall, you gain a cloud-native platform experience that enables
greater simplicity, visibility, and efficiency.
Learn more about Cisco’s firewall solutions, including virtual appliances for public and private cloud.

Kerio Control brings together next-generation firewall capabilities -- including a network firewall and router, intrusion detection and prevention (IPS), gateway anti-virus, VPN, and web content and application filtering. These comprehensive capabilities and unmatched deployment flexibility make Kerio Control the ideal choice for small and mid-sized businesses.

OPNsense is an open source, easy-to-use and easy-to-build FreeBSD based firewall and routing platform. OPNsense includes most of the features available in expensive commercial firewalls, and more in many cases. It brings the rich feature set of commercial offerings with the benefits of open and verifiable sources.

Offer
Learn more about Cisco Firepower NGFW Firewall
Learn more about Kerio Control
Learn more about OPNsense
Sample Customers
Rackspace, The French Laundry, Downer Group, Lewisville School District, Shawnee Mission School District, Lower Austria Firefighters Administration, Oxford Hospital, SugarCreek, Westfield
Triton Technical, McDonald's
CompuNet Systems GmbH,
Top Industries
REVIEWERS
Comms Service Provider22%
Financial Services Firm16%
Non Profit8%
Government8%
VISITORS READING REVIEWS
Comms Service Provider32%
Computer Software Company21%
Government7%
Manufacturing Company4%
REVIEWERS
Computer Software Company25%
Financial Services Firm13%
Transportation Company13%
Maritime Company6%
VISITORS READING REVIEWS
Comms Service Provider43%
Computer Software Company20%
Government4%
Media Company3%
VISITORS READING REVIEWS
Comms Service Provider46%
Computer Software Company16%
Government7%
Media Company4%
Company Size
REVIEWERS
Small Business43%
Midsize Enterprise28%
Large Enterprise29%
VISITORS READING REVIEWS
Small Business21%
Midsize Enterprise13%
Large Enterprise66%
REVIEWERS
Small Business89%
Midsize Enterprise8%
Large Enterprise3%
VISITORS READING REVIEWS
Small Business52%
Midsize Enterprise16%
Large Enterprise33%
REVIEWERS
Small Business69%
Midsize Enterprise15%
Large Enterprise15%
Find out what your peers are saying about Kerio Control vs. OPNsense and other solutions. Updated: November 2021.
552,695 professionals have used our research since 2012.

Kerio Control is ranked 9th in Firewalls with 30 reviews while OPNsense is ranked 19th in Firewalls with 11 reviews. Kerio Control is rated 8.0, while OPNsense is rated 8.0. The top reviewer of Kerio Control writes "Through the ease of how quickly we could roll out the VPN to everybody, we had whole companies remotely working overnight". On the other hand, the top reviewer of OPNsense writes "A solution that detects and blocks malicious content with good reporting and visibility, but the reliability needs improvement". Kerio Control is most compared with pfSense, Fortinet FortiGate, Sophos UTM, Sophos XG and Cisco ASA Firewall, whereas OPNsense is most compared with pfSense, Untangle NG Firewall, Sophos XG, Sophos UTM and SonicWall TZ. See our Kerio Control vs. OPNsense report.

See our list of best Firewalls vendors.

We monitor all Firewalls reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.