OPNsense vs Zyxel Unified Security Gateway comparison

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Comparison Buyer's Guide
Executive Summary

We performed a comparison between OPNsense and Zyxel Unified Security Gateway based on real PeerSpot user reviews.

Find out what your peers are saying about Fortinet, Cisco, Netgate and others in Firewalls.
To learn more, read our detailed Firewalls Report (Updated: January 2023).
672,411 professionals have used our research since 2012.
Featured Review
Quotes From Members
We asked business professionals to review the solutions they use.
Here are some excerpts of what they said:
Pros
"One of the most valuable features is the GUI front end, which is very easy to use. But I'm also a command-line guy, and being able to access the device via command-line for advanced troubleshooting is quite important.""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 just works for us.""Cisco's technical support is the best and that's why everybody implements their products.""Firepower has reduced our firewall operational costs by about 25 percent.""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.""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.""The TAC is always very helpful. We pay for Tier 1 support, so we get whatever we need from them. They always give us a solution. If they can't give us an answer that day, they get back to us within at least 24 hours with a solution or fix. I have never had a problem with the TAC. I would rate them as 10 out of 10."

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"The IDS and IPS features are valuable. From the usability perspective, there is a lot of good documentation. As IT professionals, we found it very easy to configure the firewall. It was easy to configure and use.""The system in general is quite flexible.""It's more secure and more reliable.""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.""OPNsense is highly stable.""OPNsense is easy to scale when running on the hardware.""What I like best about OPNsense is that, as a firewall, it's pretty good. I'm quite impressed with it. I had an excellent experience with OPNsense, which helped me achieve the targets I wanted.""OPNsense could improve by making the configuration more web-based rather than shell or command-line-based."

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"The solution can scale well."

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Cons
"Most of the features don't work well, and some features are missing as well.""I think the ASA layer is thin. It's always Layer 3 or Layer 4 source controller and doesn't control the Layer 7 traffic. It's important, and you'll need an additional firewall.""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.""On the VPN side, Firepower could be better. It needs more monitoring on VPNs. Right now, it's not that good. You can set up a VPN in Firepower, but you can't monitor it.""It can be improved when it comes to monitoring. Today, the logs from the firewalls could be improved a bit more without integrating with other devices.""A feature that would allow me to load balance among multiple ISPs, especially since we have deployed it as a perimeter firewall, would be a great addition.""One issue with Firepower Management Center is deployment time. It takes seven to 10 minutes and that's a long time for deployment. In that amount of time, management or someone else can ask me to change something or to provide permissions, but during that time, doing so is not possible. It's a drawback with Cisco. Other vendors, like Palo Alto or Fortinet do not have this deployment time issue.""One of the few things that are brought up is that for the overall management, it would be great to have a cloud instance of that. And not only just a cloud instance, but one of the areas that we've looked at is using an HA type of cloud. To have the ability to have a device file within a cloud. If we had an issue with one, the other one would pick up automatically."

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"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 logging could improve in OPNsense.""We did not like the fact that you have to configure everything with the graphic user interface. We have used other firewalls, such as FortiGate, that you can configure via code. OPNsense is not easy to integrate. When you are deploying via GitHub or another source repository, this is not possible. That's one thing we didn't like much.""The IPS solution could be more reliable.""An area for improvement in OPNsense is the hardware, which needs to be updated more frequently. DNS blocking is another good feature I want to be added to the solution. pfSense has a peer-blocking feature that I also want to see in OPNsense.""Its interface should be a little bit better.""The support for OPNsense is good because we have documents available on the internet. The support could improve a little.""They should improve IPEs for security in the future."

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"Sometimes it reboots when you least expect it, and that's the main issue."

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Pricing and Cost Advice
  • "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."
  • "I know that licensing for some of the advanced solutions, like Intrusion Prevention and Secure Malware Analytics, are nominal costs."
  • "It is affordable. The hardware is not that expensive anymore. It is a matter of licensing these days."
  • "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."
  • "I like the Smart Licensing, because it is more dynamic and easier to keep track of where you are at. If we have a high availability firewall pair and they are deployed in active/standby rather than active/active, I would expect that we would only pay for one set of licenses because you are using only one firewall at any one time. The other is there just for resiliency. The licensing, from a Firepower perspective, still requires you to have two licenses, even if the firewalls are in active/standby, which means that you pay for the two licenses, even though you might only be using one firewall any one time. This is probably not the best way to do it and doesn't represent the best value for money. This could be looked at to see if it could be done in a fairer way."
  • "We are happy with its price. Licensing is on a yearly basis for technical support. There is one license for technical support. There is another license for IP Version 2 VPN and IPS."
  • "I am happy with the product in general, including the pricing."
  • "Their pricing is very aggressive and good. Even a small company can afford it. I am happy with its pricing. Its licensing is on a yearly basis."
  • More Cisco Secure Firewall Pricing and Cost Advice →

  • "The solution is not expensive."
  • "As an appliance, it's in the medium price range."
  • "Its pricing is unbeatable in comparison to other firewalls. You can have a small instance that could be €80 a month with the hardware underneath. Azure Firewall and FortiGate are out of the question at this price. If you are on a public cloud, you need the underlying infrastructure. Other than that, there is no additional cost. If you have it on-prem, you have to buy the server or the appliance. The hardware cost is replaced with the infrastructure cost in the cloud. You also have costs for the public IPs and underlying VMs, but that's not related to OPNsense. It would be the same for a FortiGate deployment on Azure. You need a FortiGate license, and you need the underlying infrastructure that scales up depending on your needs."
  • "It is open source and free."
  • "The price of OPNsense is good."
  • "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."
  • More OPNsense Pricing and Cost Advice →

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    Questions from the Community
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    Top Answer:What I like best about OPNsense is that, as a firewall, it's pretty good. I'm quite impressed with it. I had an… more »
    Top Answer:I'm using the free version of OPNsense. I didn't check the pricing for the solution because I still need to test it… more »
    Top Answer:This is a capable appliance and the standard features work well for us.
    Top Answer:Although manageable, the user interface is a little bit slow and could be improved. There are two user interface options… more »
    Comparisons
    Also Known As
    Cisco ASA Firewall, Cisco Adaptive Security Appliance (ASA) Firewall, Cisco ASA NGFW, Cisco ASA, Adaptive Security Appliance, ASA, Cisco Sourcefire Firewalls, Cisco ASAv, Cisco Firepower NGFW Firewall
    Learn More
    OPNsense
    Video Not Available
    Overview

    The Cisco Secure Firewall portfolio delivers greater protections for your network against an increasingly evolving and complex set of threats. With Cisco, you’re investing in a foundation for security that is both agile and integrated- leading to the strongest security posture available today and tomorrow.

      From your data center, branch offices, cloud environments, and everywhere in between, you can leverage the power of Cisco to turn your existing network infrastructure into an extension of your firewall solution, resulting in world class security controls everywhere you need them.

      Investing in a Secure Firewall appliance today gives you robust protections against even the most sophisticated threats without compromising performance when inspecting encrypted traffic. Further, integrations with other Cisco and 3rd party solutions provides you with a broad and deep portfolio of security products, all working together to correlate previously disconnected events, eliminate noise, and stop threats faster.

      OPNsense is a user-friendly, fast-track, open-source FreeBSD-based firewall and routing platform. This software offers features that are generally available from costly commercial firewalls, with the added benefit of open and verifiable sources. The firewall provides users, developers, and organizations with an advantageous environment through transparency. The development of this project is driven by a strong focus on security and code quality.

      The solution offers a variety of components, such as:

      • Weekly security updates. These updates provide the user with the ability to reach new emerging threats in a timely manner through small increments.

      • Two major releases every year. These yearly releases are on a fixed release cycle and provide organizations with the ability to plan ahead of an upcoming upgrade.

      • A roadmap of instructions. Each major release provides a guide and a set of clear goals.

      A team of professionals developed OPNsense. Other professional and experienced software architects, engineers, and developers are encouraged to join in the development of the solution to make it as successful as possible. OPNsense offers a variety of rich features with each release. Each upgrade is based on FreeBSD for continual, long-term support and utilizes a freshly advanced MVC framework based on Phalcon. OPNsense is committed to helping businesses, school networks, remote offices, hotels, and other markets in keeping their data protected.

      OPNsense Core Features

      OPNsense continually offers a free, complete, high-end security platform with new releases and features. With each release, OPNsense focuses on providing more unique and better security features in a timely manner. These features include:

      • Captive Portal
      • Built-in reporting and monitoring tools including RRD Graphs
      • Network Flow Monitoring
      • Traffic Shaper
      • Support for Plugins
      • Granular Control Over State Table
      • Dynamic DNS
      • Two-factor authentication throughout the system
      • Netflow Exporter
      • Encrypted Configuration Backup to Google Drive
      • Forward Caching Proxy (transparent) with Blacklist Support
      • Stateful inspection firewall
      • DNS Server & DNS Forwarder
      • High Availability & Hardware Failover (with configuration synchronization & synchronized state tables)
      • DHCP Server and Relay
      • Virtual Private Network (site to site & road warrior, IPsec, OpenVPN & legacy PPTP support)
      • Intrusion Detection and Prevention
      • 802.1Q VLAN support

      Reviews from Real Users

      OPNsense is a favorite security solution among reviewers for a number of reasons. Two of those reasons include the user-friendliness of the solution, which makes it easy to use, and its ability to easily scale.

      For many, a user-friendly solution is essential. FiorindoDi A., a system administration specialist at a tech vendor, says, "The graphic user interface is very good and it is user-friendly, which makes the product easy-to-use."

      Peerspot reviewers speak of the scalability of the solution. For example, an anonymous cloud and infrastructure manager at a venture capital and private equity firm reviewer notes, "OPNsense is easy to scale when running on the hardware."

      ZyWALL USG Series delivers high-access quality to help businesses satisfy the demand for always-online communications. For internal deployments, the ZyWALL USG Series provides active-passive High-Availability (HA) service to support device or connection failover.

      With Device HA Pro service, the ZyWALL USG Series also supports instant failover, so connections are always maintained when a failover event occurs. For external deployments, the ZyWALL USG Series features multi- WAN load balancing/failover and a comprehensive mobile broadband USB modem support list for WAN backup operations. The ZyWALL USG Series also supports IPSec load balancing and failover, providing additional resilience for mission-critical VPN failover with VTI Interface deployments.

      ZyWALL USG110/210/310 thoroughly protects networks with industry-leading firewall, Anti-Malware/ Virus, Anti-Spam, Content Filtering, IDP, and Application Patrol functionality. Regulate unauthorized use of Web applications over your network, such as Facebook, Google apps, and Netflix, among others. Zyxel security measures are enhanced with SSL Inspection, blocking threats hidden in SSL-encrypted connections while facilitating deeper policy enforcement. Furthermore, newly improved Content Filtering 2.0 enhances HTTPS Domain Filter, Browser SafeSearch, and Geo IP Blocking for an array of security enhancements to ensure clean Web connections.

      Offer
      Learn more about Cisco Secure Firewall
      Learn more about OPNsense
      Learn more about Zyxel Unified Security Gateway
      Sample Customers
      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,
      Information Not Available
      Top Industries
      REVIEWERS
      Financial Services Firm16%
      Comms Service Provider13%
      Computer Software Company9%
      Government8%
      VISITORS READING REVIEWS
      Computer Software Company20%
      Comms Service Provider17%
      Government8%
      Educational Organization5%
      REVIEWERS
      Comms Service Provider30%
      Logistics Company20%
      Aerospace/Defense Firm10%
      Financial Services Firm10%
      VISITORS READING REVIEWS
      Comms Service Provider22%
      Computer Software Company16%
      Government9%
      Educational Organization6%
      VISITORS READING REVIEWS
      Comms Service Provider26%
      Computer Software Company18%
      Government8%
      Media Company5%
      Company Size
      REVIEWERS
      Small Business35%
      Midsize Enterprise25%
      Large Enterprise40%
      VISITORS READING REVIEWS
      Small Business28%
      Midsize Enterprise18%
      Large Enterprise53%
      REVIEWERS
      Small Business67%
      Midsize Enterprise10%
      Large Enterprise24%
      VISITORS READING REVIEWS
      Small Business27%
      Midsize Enterprise20%
      Large Enterprise53%
      VISITORS READING REVIEWS
      Small Business38%
      Midsize Enterprise18%
      Large Enterprise44%
      Buyer's Guide
      Firewalls
      January 2023
      Find out what your peers are saying about Fortinet, Cisco, Netgate and others in Firewalls. Updated: January 2023.
      672,411 professionals have used our research since 2012.

      OPNsense is ranked 7th in Firewalls with 12 reviews while Zyxel Unified Security Gateway is ranked 9th in Unified Threat Management (UTM) with 1 review. OPNsense is rated 8.2, while Zyxel Unified Security Gateway is rated 3.0. The top reviewer of OPNsense writes "Unbeatable pricing and easy to configure and use, but it can be configured only through the GUI, and the integration with Azure cloud is difficult". On the other hand, the top reviewer of Zyxel Unified Security Gateway writes "Low cost but unresponsive technical support and very unstable performance". OPNsense is most compared with pfSense, Untangle NG Firewall, Sophos XG, Fortinet FortiGate and SonicWall NSa, whereas Zyxel Unified Security Gateway is most compared with Fortinet FortiGate, pfSense, Meraki MX, Sophos XG and SonicWall TZ.

      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.