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Cisco ASA Firewall vs OPNsense comparison

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Featured Review
Find out what your peers are saying about Cisco ASA Firewall vs. OPNsense and other solutions. Updated: January 2022.
563,327 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
"Being able to determine our active users vs inactive users has led us to increased productivity through visibility. Also, if an issue was happening with our throughput, then we wouldn't know without research. Now, notifications are more proactively happening.""It's got the capabilities of amassing a lot of throughput with remote access and VPNs.""When it comes to the integration among Cisco tools, we find it easy. It's a very practical integration with other components as well.""Another benefit has been user integration. We try to integrate our policies so that we can create policies based on active users. We can create policies based on who is accessing a resource instead of just IP addresses and ports.""Firepower has been used for quite a few enterprise clients. Most of our clients are Fortune 500 and Firepower is used to improve their end to end firewall functionality.""One of the most valuable features of Firepower 7.0 is the "live log" type feature called Unified Event Viewer. That view has been really good in helping me get to data faster, decreasing the amount of time it takes to find information, and allowing me to fix problems faster. I've found that to be incredibly valuable because it's a lot easier to get to some points of data now.""I have integrated it for incidence response. If there is a security event, the Cisco firewall will automatically block the traffic, which is valuable.""Feature-wise, we mostly use IPS because it is a security requirement to protect against attacks from outside and inside. This is where IPS helps us out a bunch."

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"I think Cisco ASA Firewall is the most stable firewall solution.""I have not contacted technical support. There is a lot of information on the internet for troubleshooting. All you need to do is use a search engine and you will find the information you are looking for easily.""Cisco has the best documentation. You can easily find multiple documents by searching the web. Even a child can go online and find the required information.""The whole firewall functionality, including firewall policies and IPS policies, is valuable. It has all kinds of functionalities. It has IPS, VPN, and other features. They are doing quite a lot of stuff with their devices.""It's easy to integrate ASA with other Cisco security products. When you understand the technology, it's not a big deal. It's very simple.""Cisco ASA provides us with very good application visibility and control.""This product is pretty stable.""I have found the most valuable feature to be the access control and IPsec VPN."

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"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 system in general is quite flexible.""OPNsense is easy to scale when running on the hardware.""The most valuable features in OPNsense are reporting and visibility.""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."

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Cons
"Cisco makes horrible UIs, so the interface is something that should 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.""The price and SD-WAN capabilities are the areas that need improvement.""The initial setup can be a bit complex for those unfamiliar with the solution.""The performance should be improved.""The configuration in Firepower Management Center is very slow. Deployment takes two to three minutes. You spend a lot of time on modifications. Whereas, in FortiGate, you press a button, and it takes one second.""They need a VTI. I know it's going to be available in the next software version, which is the 6.7 version. However, the problem with that is that the 6.7 is going to deprecate all the older IKEv1 deployment tunnels. Therefore, the problem is that we have a lot of customers which are using older encryptions. If I do that, update it, it's not going to work for me.""The visibility for VPN is one big part. The policy administration could be improved in terms of customizations and flexibility for changing it to our needs."

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"In the next release, I would like to see the VPN and UTM features included.""Cisco should work on ASDM. One of the biggest drawbacks of Cisco ASA is ASDM GUI. Cisco should improve the ASDM GUI. The configuration through ASDM is really difficult as compared to CLI. Sometimes when you are doing the configuration in ASDM, it suddenly crashes. It also crashes while pushing a policy. Cisco should really work on this.""In the future, I would like to be able to use an IP phone over a VPN connection.""On firewall features, Fortinet is better. Cisco needs to become more competitive and add more features or meet Fortinet's offering.""It is hard to collaborate with our filtered environment.""Cisco ASA is not a next-generation firewall product.""One thing that we really would have loved to have was policy-based routing. We had a lot of connections, and sometimes, we would have liked to change the routing depending on the policies, but it was lacking this capability. We also wanted application filtering and DNS filtering.""You shouldn't have to use the ASDM to help manage the client."

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"While they do have paid options that actually gives better features, for most of the clients, if they tend to take a paid option will instead opt for Fortinet.""The ability to set the VPN IP address would be a welcome addition.""There should be more technical documentation.""The logging could improve in OPNsense.""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.""There are issues with stability and reliability.""The solution would not be suitable for anything large-scale.""The interface needs to be simplified. It is not user-friendly."

More OPNsense Cons →

Pricing and Cost Advice
  • "Cisco pricing is premium. However, they gave us a 50 to 60 percent discount."
  • "There are additional implementation and validation costs."
  • "Cisco, as we all know, is expensive, but for the money you are paying, you know that you are also getting top-notch documentation as well as support if needed."
  • "This product requires licenses for advanced features including Snort, IPS, and malware detection."
  • "This product is expensive."
  • "For me, personally, as an individual, Cisco Firepower NGFW Firewall is expensive."
  • "The price of Firepower is not bad compared to other products."
  • "The solution was chosen because of its price compared to other similar solutions."
  • More Cisco Firepower NGFW Firewall Pricing and Cost Advice →

  • "In terms of costs, other solutions are more expensive than Cisco. Palo Alto is more expensive than Cisco."
  • "There is room for improvement in the pricing when compared to the market. Although, when you compare the benefits of support from Cisco, you can adjust the value and it becomes comparable, because you usually need very good support. So you gain value there with this device."
  • "When it comes to Cisco, the price of everything is higher. Cisco firewalls are expensive, but we get support from Cisco, and that support is very active."
  • "Cisco is expensive, but you do get benefits for the price."
  • "It's a brilliant firewall, and the fact that it comes with a perpetual license really does go far in terms of helping the organization in not having to deal with those costs on an annual basis. That is a pain point when it comes to services like the ones we have on Fortigate. That's where we really give Cisco firewalls the thumbs up."
  • "The licensing is a bit off because the physical firewall is cheaper than the virtual one. We only have the physical ones as they are cheaper than the virtual ones. We only use the physical firewalls because of the price difference."
  • "Always consider what you might need to reduce your wasted time and invest it in other solutions."
  • "Cisco is considered to be an expensive solution."
  • More Cisco ASA Firewall Pricing and Cost Advice →

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

    report
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    563,327 professionals have used our research since 2012.
    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: 
    One of our favorite things about Fortinet Fortigate is that you can deploy on the cloud or on premises. Fortinet… more »
    Top Answer: 
    Cisco Adaptive Security Appliance (ASA) software is the operating software for the Cisco ASA suite. It supports… more »
    Top Answer: 
    When looking to change our ASA Firewall, we looked into Palo Alto’s WildFire. It works especially in preventing advanced… more »
    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 initial implementation process is simple.
    Top Answer: 
    We're a customer and an end-user. We are using the telemetry-free version of the solution. Overall, the solution is… more »
    Comparisons
    Also Known As
    Cisco Firepower NGFW, Cisco Firepower Next-Generation Firewall, FirePOWER, Cisco NGFWv
    Cisco Adaptive Security Appliance (ASA) Firewall, Cisco ASA NGFW, Cisco ASA, Adaptive Security Appliance, ASA, Cisco Sourcefire Firewalls, Cisco ASAv
    Learn More
    OPNsense
    Video Not Available
    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.

    Cisco ASA firewalls deliver enterprise-class firewall functionality with highly scalable and flexible VPN 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 ASA can be deployed as a physical or virtual appliance. Flexible VPN capabilities include support for remote access, site-to-site, and clientless VPN. Also, select appliances support clustering for increased performance, VPN load balancing to optimize available resources, advanced high availability configurations, and more.

    Cisco ASAv is the virtualized version of the Cisco ASA firewall. Widely deployed in leading private and public clouds, Cisco ASAv is ideal for remote worker and multi-tenant environments. The solution scales up/down to meet performance requirements and high availability provides resilience. Also, Cisco ASAv 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.

    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 Cisco ASA Firewall
    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
    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.
    CompuNet Systems GmbH,
    Top Industries
    REVIEWERS
    Comms Service Provider22%
    Financial Services Firm16%
    Manufacturing Company8%
    Non Profit8%
    VISITORS READING REVIEWS
    Comms Service Provider33%
    Computer Software Company21%
    Government7%
    Manufacturing Company4%
    REVIEWERS
    Financial Services Firm17%
    Comms Service Provider13%
    Manufacturing Company10%
    Computer Software Company7%
    VISITORS READING REVIEWS
    Comms Service Provider35%
    Computer Software Company21%
    Government5%
    Educational Organization4%
    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 Business35%
    Midsize Enterprise26%
    Large Enterprise39%
    VISITORS READING REVIEWS
    Small Business28%
    Midsize Enterprise16%
    Large Enterprise57%
    REVIEWERS
    Small Business69%
    Midsize Enterprise15%
    Large Enterprise15%
    Find out what your peers are saying about Cisco ASA Firewall vs. OPNsense and other solutions. Updated: January 2022.
    563,327 professionals have used our research since 2012.

    Cisco ASA Firewall is ranked 6th in Firewalls with 62 reviews while OPNsense is ranked 13th in Firewalls with 11 reviews. Cisco ASA Firewall is rated 8.0, while OPNsense is rated 8.0. The top reviewer of Cisco ASA Firewall writes "Robust solution that integrates well with both Cisco products and products from other vendors". 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". Cisco ASA Firewall is most compared with Fortinet FortiGate, Palo Alto Networks WildFire, Meraki MX, Juniper SRX and Check Point CloudGuard Network Security, whereas OPNsense is most compared with pfSense, Untangle NG Firewall, Sophos XG, Sophos UTM and WatchGuard Firebox. See our Cisco ASA Firewall 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.