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Cisco ASA Firewall vs OPNsense comparison

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Cisco ASA Firewall Logo
60,663 views|45,193 comparisons
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39,021 views|32,205 comparisons
Featured Review
Find out what your peers are saying about Cisco ASA Firewall vs. OPNsense and other solutions. Updated: January 2022.
564,143 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 Adversity Malware Protection (AMP) feature is the most valuable. It is also very easy to use. Every technical user can operate this solution without any difficulty. The dashboard of Cisco Firepower has every tool that a security operator needs. You can find every resource that you need to operate through this dashboard.""Provides good integrations and reporting.""We get the Security Intelligence Feeds refreshed every hour from Talos, which from my understanding is that they're the largest intelligence Security Intelligence Group outside of the government.""There are no issues that we are aware of. It does its job silently in the background.""I have integrated it for incidence response. If there is a security event, the Cisco firewall will automatically block the traffic, which is valuable.""The most valuable feature is the access control list (ACL).""Its Snort 3 IPS has better flexibility as far as being able to write rules. This gives me better granularity.""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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"The configuration support is very good. You can find a lot of configuration samples and troubleshooting tips on the internet, which is very good.""They provide DDoS protection and multi-factor authentication. That is a good option as it enables work-from-home functionality.""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 remote VPN and IPsec VPN or site-to-site VPN features are valuable. The clustering feature is also valuable. We have two ISP links. Whenever there is a failover, users don't even get to know. The transition is very smooth, and the users don't notice any latency. So, remote VPN, site-to-site VPN, and failover are three very powerful features of Cisco ASA.""The interface is user-friendly.""We find all of its features very useful. Its main features are policies and access lists. We use both of them, and we also use routing.""It's very stable and mature.""I have found the most valuable feature to be the access control and IPsec VPN."

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"The interface and the dashboard are the most valuable features of this solution.""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 graphic user interface is very good and it is user-friendly which makes the product easy-to-use.""The most valuable features in OPNsense are reporting and visibility.""The system in general is quite flexible.""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.""The initial implementation process is simple."

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Cons
"There is limited data storage on the appliance itself. So, you need to ship it out elsewhere in order for you to store it. The only point of consideration is around that area, basically limited storage on the machine and appliance. Consider logging it elsewhere or pushing it out to a SIEM to get better controls and manipulation over the data to generate additional metrics and visibility.""Report generation is an area that should be improved.""The initial setup was a bit complex. It wasn't a major challenge, but due to our requirements and network, it was not very straightforward but still easy enough.""The Firepower FTD code is missing some old ASA firewalls codes. It's a small thing. But Firepower software isn't missing things that are essential, anymore.""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.""I believe that the current feature set of the device is very good and the only thing that Cisco should work on is improving the user experience with the device.""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.""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."

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"It can probably provide a holistic view of different appliances because many customers do not have only one brand, besides the traditional SNMP protocols, to cover all their devices. There are some specific requirements in terms of configurations or actions that sometimes have to be done in a very manual way because of the different versions or brands in a customer's infrastructure. It could also have some additional analytics capabilities. It has some very interesting ways to monitor the traffic and identify false positives from the architecture and the environment. It would be good if there is a way to patch with some other industry-specific solutions and synchronize some of the information, such as what other customers experience in their operations and probably share some additional information that could be leveraged or shared among the industry. Such information would be something interesting to see. It could have AI capabilities related to how the appliances could benefit from learning the current environment and different exposures.""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.""We don't have any serious problems. The firewall models that we have are quite legacy, and they have slower performance. We are currently investigating the possibility of migrating to next-generation firewalls.""Technical support takes a long time to respond.""It is expensive.""I would say that in inexperienced hands, the interface can be kind of overwhelming. There are just a lot of options. Too much, if you don't know what you are looking for or trying to do.""The price can be better.""The virtual firewalls don't work very well with Cisco AnyConnect."

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"The solution could be more secure.""There are issues with stability and reliability.""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.""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.""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.""The solution would not be suitable for anything large-scale.""The interface needs to be simplified. It is not user-friendly."

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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 →

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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: 
    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.
    564,143 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.