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Cisco Meraki MX vs OPNsense comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

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

ROI

Sentiment score
5.2
Cisco Meraki MX provides significant ROI through intuitive management, reduced costs, and streamlined operations despite higher initial costs.
Sentiment score
3.0
Numerous users reported substantial financial savings and improved network security with OPNsense compared to alternatives like FortiGate or Sophos.
I have seen a return on investment with Cisco Meraki MX because of the time saved through cloud management.
Presales System Engineer at Logicom Sales Inc
You can eliminate some positions because it manages itself.
Enterprise Networking Solutions Architect at a computer software company with 51-200 employees
It greatly helps out when I am moving away from the expensive MPLS circuits or MPLS hardware.
Senior Manager Networking at David Yurman
The network attacks reduced by approximately 60% after using that, even without customizing the custom configuration yet.
Senior IT Infrastructure Engineer at a real estate/law firm with 11-50 employees
For a very little investment, I was able to increase the security of my network.
Administrator at a retailer with 10,001+ employees
 

Customer Service

Sentiment score
8.3
Cisco Meraki MX support is responsive and knowledgeable, highly rated for reliability, though some advanced users face visibility challenges.
Sentiment score
5.3
OPNsense users mostly find community forums and documentation sufficient, though some express dissatisfaction with official support availability and cost.
When we raise a ticket with Meraki MX, they instantly become available to support us for configurations or troubleshooting.
Managing Director at a manufacturing company with 10,001+ employees
Cisco's TAC support for Cisco Meraki MX is excellent because no other OEM provides support at this level.
Technical Presales at Vcom Technologies
Cisco is one of the best vendors in the market.
Presales System Engineer at Logicom Sales Inc
Compared to some open-source projects with weak support, OPNsense stands out for having both a strong community and commercial backing options.
ISO 27001 Lead Implementer at a consultancy with 11-50 employees
I mainly rely on community support since the solution is open source.
Senior Client Solutions Architect at a tech services company with 1,001-5,000 employees
If you say you do not have one, it is finished. This is where the monopoly starts.
Senior Solutions Engineer at a educational organization with 201-500 employees
 

Scalability Issues

Sentiment score
6.7
Cisco Meraki MX is scalable, adapting from small to large deployments, with minimal management and straightforward setup.
Sentiment score
6.8
OPNsense offers scalable and flexible network solutions, effectively supporting mid-sized to enterprise needs with appropriate hardware or virtualization.
When you have hundreds of thousands of people it is very difficult to scale in Meraki.
Managing Director at a manufacturing company with 10,001+ employees
The scalability of Cisco Meraki MX is rated 10 out of 10; you can scale up and scale down with no effort.
Presales System Engineer at Logicom Sales Inc
Cisco Meraki MX scales with my growing needs for my organization very well because they are easy to deploy.
Network Engineer at a non-profit with 1,001-5,000 employees
I use Zenarmor, pinning it to one core for packet inspection, and the CPU performance seems very good.
Senior Client Solutions Architect at a tech services company with 1,001-5,000 employees
OPNsense's scalability is excellent; I just need to resize my hardware and upgrade the server, and voilà, I am good to go.
Senior IT Infrastructure Engineer at a real estate/law firm with 11-50 employees
In theory, OPNsense can handle small home networks and even large enterprise environments if deployed on sufficiently powerful hardware or virtualized on a clustered system.
ISO 27001 Lead Implementer at a consultancy with 11-50 employees
 

Stability Issues

Sentiment score
8.6
Cisco Meraki MX offers high reliability and compatibility, with praised stability despite occasional content filtering and hardware issues.
Sentiment score
7.3
OPNsense is stable with occasional issues; praised for security and UI, performance varies with hardware and resource availability.
There have been no outages, no stability issues, and we have not found any vulnerabilities during security audits.
Technical Presales at Vcom Technologies
I have had zero downtime at all with Cisco Meraki MX.
Enterprise Networking Solutions Architect at a computer software company with 51-200 employees
I assess the stability and the reliability of Cisco Meraki MX as good, and I have experienced no downtime, crashes, or performance issues.
Network Engineer at a non-profit with 1,001-5,000 employees
For home and small network use, OPNsense is also reliable, providing enterprise-grade security at no cost.
ISO 27001 Lead Implementer at a consultancy with 11-50 employees
The only challenge faced was its inadequacy to manage large voice traffic effectively, even with dedicated hardware.
Senior Network Engineer at a comms service provider with 11-50 employees
At the latest code level, I haven't experienced any crashes.
Senior Client Solutions Architect at a tech services company with 1,001-5,000 employees
 

Room For Improvement

Cisco Meraki MX faces challenges with port control, VPN connectivity, interface usability, pricing, and integration, prompting user concerns.
OPNsense users face VPN setup issues, inadequate documentation, performance shortfalls, high pricing, and request better usability and features.
It should automatically remediate and find out the issue and then resolve it on its own without interrupting the work of the employees.
Managing Director at a manufacturing company with 10,001+ employees
Data is the only path, so optimization is essential.
Chief Commercial Officer at InnovAge Home Care
An improvement would be to use Cisco Meraki MX as a software solution as well, which might reduce the cost.
Technical Presales at Vcom Technologies
Enhancing its performance for significant amounts of data traffic would make it closer to a perfect solution.
Senior Network Engineer at a comms service provider with 11-50 employees
It would be beneficial if they could create some videos on how to set it up themselves.
Administrator at a retailer with 10,001+ employees
The documentation should be clearer because I faced some difficulties navigating many options.
ISO 27001 Lead Implementer at a consultancy with 11-50 employees
 

Setup Cost

Cisco Meraki MX offers flexible licensing and high value but can involve significant initial costs and annual fees.
OPNsense is a cost-effective, open-source solution for enterprises, reducing expenses compared to FortiGate and Palo Alto alternatives.
I get it for $25,000, a device that can connect up to 75-100 users, whereas in Meraki MX, it goes to 75,000-80,000 per access point.
Managing Director at a manufacturing company with 10,001+ employees
The price could be reduced by around 30% to make it more comfortable.
Technical Presales at Vcom Technologies
If Cisco can make the pricing less, customers can purchase more licenses.
Presales System Engineer at Logicom Sales Inc
I consider the pricing of OPNsense to be high when compared with other market products.
Senior Network Engineer at a comms service provider with 11-50 employees
OPNsense is free, the licensing and setup was easy.
Administrator at a retailer with 10,001+ employees
 

Valuable Features

Cisco Meraki MX provides cloud management, SD-WAN, advanced security, and ease of use, making it ideal for scalable networks.
OPNsense provides user-friendly configuration, robust security features, and adaptability, making it ideal for enterprise and IT network management.
Meraki MX is among those top solutions in their exceptional approach towards VPN-less, Zero Trust client access to office private networks.
Managing Director at a manufacturing company with 10,001+ employees
Advanced security is the second tier of Cisco Meraki MX. It brings you the main next-generation firewalling features such as URL filtering, advanced malware protection, and threat protection.
Presales System Engineer at Logicom Sales Inc
Cisco Meraki MX API makes it really easy for me to automate a lot of changes over several thousand devices.
Technology Engineer at a computer software company with 201-500 employees
The most valuable features include the basic firewall functionality and the GeoIP location services.
Senior Network Engineer at a comms service provider with 11-50 employees
I can have a Wi-Fi VLAN and feel secure that the server network or the VM network that I have on a different VLAN are isolated, and they cannot talk to one another, which adds a great level of security.
Administrator at a retailer with 10,001+ employees
It offers enterprise-grade features such as intrusion detection and prevention system, VPN support, traffic shaping, and web filtering, all without license cost.
ISO 27001 Lead Implementer at a consultancy with 11-50 employees
 

Categories and Ranking

Cisco Meraki MX
Ranking in Firewalls
10th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
75
Ranking in other categories
Unified Threat Management (UTM) (6th)
OPNsense
Ranking in Firewalls
7th
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
47
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Firewalls category, the mindshare of Cisco Meraki MX is 3.5%, up from 3.4% compared to the previous year. The mindshare of OPNsense is 7.9%, down from 11.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Mindshare Distribution
ProductMindshare (%)
OPNsense7.9%
Cisco Meraki MX3.5%
Other88.6%
Firewalls
 

Featured Reviews

SG
Technical Presales at Vcom Technologies
Cloud-based solution simplifies network management with excellent support
There have been no issues with stability after deployment. There have been no complaints. For stability, I would suggest that Cisco Meraki MX is the most stable device from the security processor. Regarding content filtering features, we are using content filtering and malware access, along with all security features in Cisco Meraki MX9500. We have received good feedback from customers because since installing Cisco Meraki MX9500, we have not received any complaints. There have been no outages, no stability issues, and we have not found any vulnerabilities during security audits. It is compatible with all different OEMs, and for VPN, site-to-site VPN has been configured with other firewalls as well. We are getting very good responses from customers as there have been no complaints where we have deployed Cisco Meraki MX9500.
Moutaz Sheikh Alard - PeerSpot reviewer
ISO 27001 Lead Implementer at a consultancy with 11-50 employees
Has helped simulate enterprise security setups and strengthens network segmentation practices
For my capstone, I use OPNsense for my project and its broader benefits for enterprise and cybersecurity context. OPNsense is an open source based firewall and routing platform. It offers enterprise-grade features such as intrusion detection and prevention system, VPN support, traffic shaping, and web filtering, all without license cost. This platform has a modular design, a clean web-based GUI, and frequent updates that prioritize security and usability. It competes with commercial firewalls such as Cisco ASA, FortiGate, and Palo Alto, but stands out because it's community-driven, cost-effective, and transparent. I find OPNsense's feature of acting as a central firewall and gateway most valuable, providing robust point segmentation between the internal network and DMZs in my capstone project, intrusion detection to monitor malicious traffic, VPN services for secure remote access, and logging and monitoring for compliance and auditing. This allows me to simulate a real-world enterprise environment on a smaller scale, demonstrating both security hardening and network efficiency. OPNsense impacts my projects and home network positively because its cost-effectiveness is perfect for lab and enterprise setup without expensive licensing. The flexibility, easy VLAN and DMZ configuration supports different zones such as web servers, mail servers, and log servers. The security-first design for IDS/IPS integration helps me showcase modern defense-in-depth strategies. The user-friendly management through the web GUI makes it possible to manage complex firewall rules clearly, which is critical when documenting and presenting a capstone. Scalability is also an advantage. Although my project is lab-based, OPNsense can scale into production deployments in SMBs and enterprise.
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Construction Company
9%
Manufacturing Company
8%
Financial Services Firm
7%
Comms Service Provider
17%
Computer Software Company
9%
Manufacturing Company
8%
Outsourcing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business43
Midsize Enterprise22
Large Enterprise19
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise6
Large Enterprise8
 

Questions from the Community

Fortigate 60d vs. Meraki MX67 for a small company without a dedicated IT Department
We have Meraki Mx devices now, we are looking to replace them. But that is because the Meraki MX platform lacks SSL Inspection, Granular Firewall rules (Block only, no allow setting), client vpn re...
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 network security and firewall options. We researched both Meraki and ASA. We liked t...
What is your experience regarding pricing and costs for Meraki MX?
I don't even look at the cost of Cisco Meraki MX; I let the accountants deal with that.
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 client, Open VPN and client, and PPTP client. Both also have intrusion detection a...
What is your experience regarding pricing and costs for OPNsense?
Setup cost is almost zero as one can simulate the whole environment using open source version. Pricing seems fair enough. Open source license allows a beginner to have a complete firewall solution ...
What needs improvement with OPNsense?
When I talk about VPN, I am not completely satisfied with the VPN functions of OPNsense. What I have received so far is that sometimes the VPN route caches for some time and sometimes I want to cha...
 

Also Known As

MX64, MX64W, MX84, MX100, MX400, MX600
No data available
 

Overview

 

Sample Customers

Hyatt, ONS
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 Meraki MX vs. OPNsense and other solutions. Updated: August 2026.
908,834 professionals have used our research since 2012.