Cisco Secure Firewall vs Zyxel Unified Security Gateway comparison

Cisco Secure Firewall vs. Zyxel Unified Security Gateway

December 2025

Download the complete report

Helped 881,082 peers since 2012

Review summaries and opinions

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

Categories and Ranking

Fortinet FortiGate

Featured Reviews

Vasu Gala

Manager, Information Technology Operation/Presales at TechMonarch

A stable solution with an intuitive interface and quick customer service

I have been working with Fortinet FortiGate, WatchGuard, Sophos, and SonicWall. I'm not as comfortable with SonicWall because of their UI and limitations. I prefer Fortinet above all other options. When it comes to configuration, I am confident in my ability to handle various tasks, including creating policies such as firewall rules, web policies, and application policies. Additionally, I can configure VPNs and implement load balancing, among other tasks. Overall, I feel much more comfortable working with Fortinet. Fortinet has made significant improvements by integrating AI with firewalls for threat analysis and prevention. In the past 2-3 years, they have launched FortiSASE and SIEM, and they also provide SOC services. Both Palo Alto and Fortinet FortiGate are excellent. While Fortinet FortiGate comes at higher prices, the functionality and support justify the cost. They promptly resolve firmware issues and inform all support providers about configuration changes.

Unified policies streamline network management but complex licensing requires attention

Phil Shiflett

Senior Manager, Network Engineering at TTi Power Equipment

Cisco Secure Firewall has some growth opportunities in terms of visibility and control capabilities regarding managing encrypted traffic. It has the ability to analyze encrypted traffic, and there is potential for more integration with APIs and AI to enhance these capabilities. Cisco Secure Firewall needs improvement in deployment time and the capability to access the CLI during support calls. I often encounter issues when technical support uses a CLI that is not familiar to me while troubleshooting through the GUI. My ongoing complaint for the last six years has been the lack of CLI functionality, which hinders my ability to work on the firewall, alongside concerns regarding deployment time. For the next release, they should look at the features offered by competitors such as Fortinet, including the ability to perform packet capture directly from the interface. If they enhanced their troubleshooting efficiency related to packet capture for each specific rule, it would simplify the process significantly.

User has benefited from stable performance and effective completion of security tasks

reviewer2399337

Sales and technical consultant at a manufacturing company with 10,001+ employees

I use it mostly for VPN and for some firewall solutions When considering my main use case with VPN, I can say that I got the Zyxel Unified Security Gateway, and it works fine. However, we are thinking about using a different solution based on open source because Zyxel Unified Security Gateway…

More Fortinet FortiGate pros

Quotes from Members

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

Pros

"Fortinet FortiGate SWG's content is its most valuable feature."

"The pipe filter application is an outstanding feature."

"Provides good VPN capabilities."

"The detection is great."

"I love the interface."

"The response from the technical support team has always been excellent."

"We use the FortiGate Sandbox to detect zero-day vulnerabilities, such as anomalies or malware, that are unknown and have not yet been discovered."

"Their proxy-based inspection is responsive and secure."

"They wanted to leverage something which is equivalent that can give them the next gen features like application awareness and intrusion protection. So that is a major reason they were looking forward to this. The original ASA firewall did not have these features. This was the major reason the customer moved on to Cisco Firepower Threat Defense (FTD). Now they can go ahead and leverage those functionalities."

"We moved from a legacy firewall to the ASA with FirePOWER, increasing our Internet Edge defense dramatically."

"One thing I like about the product is the logging features, the way it logs, the way it forwards the logs in Syslog."

"The traffic inspection and the Firepower engine are the most valuable features. It gives you full details, application details, traffic monitoring, and the threats. It gives you all the containers the user is using, especially at the application level. The solution also provides application visibility and control."

"This solution has good security, and it's a good product. You can trust Cisco, and there's support as well, which is really good."

"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."

"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."

"What I appreciate the most about Cisco Secure Firewall is that it can be very elastic, as it can be configured with all the flexibility of my network needs and complexity."

More Cisco Secure Firewall pros

"The solution can scale well."

"The most valuable features of the solution stem from web filtering, malware protection, and antivirus."

"This is a capable appliance and the standard features work well for us."

"The Zyxel Unified Security Gateway solution is stable and does its job effectively."

Cons

"There should be more testing before releasing software since it can be a little buggy sometimes when new features come out after updates."

"The issue lies with features available in GUI versus CLI during configuration. When using GUI, I want to accomplish everything there, but sometimes it requires using CLI to ensure proper configuration."

"It would be ideal if they had some sort of GUI interface for troubleshooting and diagnostics."

"Improvements for Fortinet FortiGate could be made by making it easier to implement on networks and simpler to add users and accounts that utilize this solution. That's basically the only challenge that I see."

"Scalability is one of the disadvantages. When it comes to scalability, you have to actually change the box. If you want to upgrade it, you need to actually change the existing box and probably you take the system off to other sites."

"The solution’s pricing is high."

"There are too many updates coming for VPN, and the VPN keeps disconnecting frequently, which I find problematic."

"I believe one area that could be improved in Fortinet FortiGate is posturing, specifically for remote VPN users, as there are OS-based limitations I encountered with only Windows; adding domain restrictions for VPN access would make it more competitive and useful."

More Fortinet FortiGate cons

"Initial setup can be complex. It is complex. We have to set up ASA, SFR module, and FMC separately, which sometimes requires extensive troubleshooting, even for smaller issues."

"I see room for improvement when it comes to integrating all the devices into a central management system. Cisco doesn't provide this, but there are some good products in the market that can provide it."

"The inclusion of an autofill feature would improve the ease of commands."

"Third-party integrations could be improved."

"There are always vulnerabilities that come up and there was one in early 2018 but this was patched with software updates."

"Cisco Firewall is not user-friendly. They complicate simple configurations, requiring multiple steps."

"The product's user interface is an area with certain shortcomings where improvements are required."

"I don't have to see all the object groups that have been created on that firewall. That's just something that I would really appreciate on the CLA, even though it already exists on the GUI."

More Cisco Secure Firewall cons

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

"The product has some scalability and data management issues where improvements are required."

"Although manageable, the user interface is a little bit slow and could be improved."

Pricing and Cost Advice

"There is a need to pay for a license for the product."

"The price of the license and warranty can be better because it is very expensive."

"Compared to Palo Alto, which we have used in the past, pricing and licensing are okay."

"I rate the price of Fortinet FortiGate SWG a seven and a half out of ten since it is not a cheap solution, though I feel it is a good product for the money one pays."

"Its price is affordable and lesser than Cisco. Cisco is expensive. In terms of licensing, there is only one issue. If a customer's license has expired a month ago and they do the renewal after one month, Fortinet renews the license from the start of the previous month. The activation of the product is done from the previous month, not from the date of renewal. The customers usually shout and complain that because they are paying today, the renewal should start from today. The support contract renewals or licensing should be renewed from the date of renewal, but Fortinet starts from the day it had expired. It is a loss for customers. They might have had some problems because of which they did not take the license one month before. Fortinet should work on this. Cisco doesn't do this. Cisco always starts from the day they apply for the license."

"The price is fair compared to the other competitors."

"The price of Fortinet FortiGate is reasonable."

"The solution's pricing is competitive."

More Fortinet FortiGate pricing and cost advice

"Cisco Firepower is a great solution, but it is expensive compared to others that can provide similar benefits for much less."

"It requires additional licensing to enable 10G ports."

"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."

"It would be nice if pricing could do more to reflect the economy of the country where the product is being implemented."

"The enterprise agreement that we have has helped with the pricing because it allows us to consume licensing in more of a consumption model versus a per-user type model. That has helped us a lot."

"Based on the services that you will get, especially the AMP license, the price is very reasonable."

"We normally license on a yearly basis. The hardware procurement cost should be considered. If you're virtual maybe that cost is eradicated and just the licensing cost is applied. If you have hardware the cost must be covered by you. All the shipping charges will be paid by you also. I don't thing there are any other hidden charges though."

"We pay a lot of money for it."

More Cisco Secure Firewall pricing and cost advice

"This gateway is pretty cheap."

"The price of Zyxel Unified Security Gateway is good compared to other similar products in the market."

See which vendors are best for you

Use our free recommendation engine to learn which Firewalls solutions are best for your needs.

See recommendations

881,082 professionals have used our research since 2012.

Comparison Review

it_user206346

Security Consultant at Webernetz.net - Network Security Consulting

Mar 11, 2015

Cisco ASA vs. Palo Alto Networks

Cisco ASA vs. Palo Alto: Management Goodies You often have comparisons of both firewalls concerning security components. Of course, a firewall must block attacks, scan for viruses, build VPNs, etc. However, in this post I am discussing the advantages and disadvantages from both vendors concerning…

Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?

Top Industries

By visitors reading reviews

Computer Software Company

12%

Comms Service Provider

Manufacturing Company

Financial Services Firm

Computer Software Company

15%

Manufacturing Company

Comms Service Provider

University

Comms Service Provider

23%

Computer Software Company

11%

Outsourcing Company

Wholesaler/Distributor

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	357
Midsize Enterprise	133
Large Enterprise	188

By reviewers
Company Size	Count
Small Business	180
Midsize Enterprise	126
Large Enterprise	212

No data available

Questions from the Community

When you compare these firewalls you can identify them with different features, advantages, practices and usage a...

What is the biggest difference between Sophos XG and FortiGate?

From my experience regarding both the Sophos and FortiGate firewalls, I personally would rather use FortiGate. I know...

What are the biggest technical differences between Sophos UTM and Fortinet FortiGate?

As a solution, Sophos UTM offers a lot of functionality, it scales well, and the stability and performance are quite ...

Which is better - Fortinet FortiGate or Cisco ASA Firewall?

One of our favorite things about Fortinet Fortigate is that you can deploy on the cloud or on premises. Fortinet Fort...

How does Cisco's ASA firewall compare with the Firepower NGFW?

It is easy to integrate Cisco ASA with other Cisco products and also other NAC solutions. When you understand the Cis...

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 netw...

What do you like most about Zyxel Unified Security Gateway?

The most valuable features of the solution stem from web filtering, malware protection, and antivirus.

What is your experience regarding pricing and costs for Zyxel Unified Security Gateway?

I cannot definitively comment on whether Zyxel Unified Security Gateway is an affordable product as I haven't done co...

What needs improvement with Zyxel Unified Security Gateway?

The integration capability is quite challenging. The system is very complicated, and many features are hidden. I'm lo...

Sophos Firewall vs Fortinet FortiGate

Comparisons

Compared 20% of the time

Netgate pfSense vs Fortinet FortiGate

Compared 6% of the time

OPNsense vs Fortinet FortiGate

Compared 3% of the time

Palo Alto Networks NG Firewalls vs Fortinet FortiGate

Compared 3% of the time

SonicWall TZ vs Fortinet FortiGate

Compared 3% of the time

More Fortinet FortiGate Competitors

Palo Alto Networks NG Firewalls vs Cisco Secure Firewall

Compared 11% of the time

Palo Alto Networks WildFire vs Cisco Secure Firewall

Compared 10% of the time

Check Point Quantum Force (NGFW) vs Cisco Secure Firewall

Compared 4% of the time

OPNsense vs Cisco Secure Firewall

Compared 3% of the time

Netgate pfSense vs Cisco Secure Firewall

Compared 3% of the time

More Cisco Secure Firewall Competitors

Netgate pfSense vs Zyxel Unified Security Gateway

Compared 14% of the time

Sophos Firewall vs Zyxel Unified Security Gateway

Compared 12% of the time

OPNsense vs Zyxel Unified Security Gateway

Compared 11% of the time

WatchGuard Firebox vs Zyxel Unified Security Gateway

Compared 5% of the time

KerioControl vs Zyxel Unified Security Gateway

Compared 3% of the time

More Zyxel Unified Security Gateway Competitors

Product Reports

Download Fortinet FortiGate product report

Fortinet FortiGate

January 2026

Download Cisco Secure Firewall product report

Cisco Secure Firewall

January 2026

Unified Threat Management (UTM)

January 2026

Download Zyxel Unified Security Gateway product report

Also Known As

Fortinet FortiGate Next-Generation Firewall

Cisco Adaptive Security Appliance (ASA) Firewall, Cisco ASA NGFW, Adaptive Security Appliance, Cisco Sourcefire Firewalls, Cisco ASAv, Cisco Firepower NGFW Firewall, Cisco Secure Firewall ASA Virtual - BYOL

No data available

Overview

Fortinet FortiGate is a versatile network security tool offering features like VPN, firewall, web filtering, intrusion prevention, and scalability. It is known for its performance and integration with other Fortinet products, making it a preferred choice for robust cybersecurity.

Fortinet FortiGate stands out as a comprehensive cybersecurity solution with strong performance and ease of configuration. It delivers unified threat management, integrating features such as dynamic routing, SD-WAN support, and centralized management. Despite its strengths, improvements in the web interface's stability, pricing structures, and reporting capabilities are needed. Users seek better integration with third-party tools and automation advancements to enhance the experience further. These enhancements, alongside improvements in bandwidth management and the reduction of licensing costs, are points of interest for users looking to capitalize on FortiGate's extensive capabilities.

What are Fortinet FortiGate's key features?

VPN: Ensures secure remote connections.
Firewall: Protects against unauthorized access.
Web Filtering: Blocks malicious sites and content.
Application Control: Manages and controls applications.
Intrusion Prevention: Detects and prevents vulnerabilities.
SSL Inspection: Enhances security by inspecting encrypted traffic.

What benefits should be considered when evaluating Fortinet FortiGate?

Affordability: Offers cost-effective security solutions.
Reliability: Known for consistent and stable performance.
Integration: Seamlessly integrates with other Fortinet products.
Comprehensive Protection: Provides broad threat protection capabilities.

Fortinet FortiGate is widely implemented across industries as a primary firewall system for securing internet gateways and safeguarding data centers. It supports businesses in achieving SD-WAN integration and enhances cybersecurity by providing essential features like antivirus, web filtering, and application control. Enterprises utilize FortiGate for securing remote connections and ensuring compliance with security standards, making it adaptable for different network sizes and industries.

Fortinet

Cisco Secure Firewall provides comprehensive network security with advanced features such as application visibility, URL filtering, and malware protection. It combines a user-friendly interface with robust VPN capabilities, making it a reliable choice for varying network environments and industry applications.

Cisco Secure Firewall offers exceptional protection with its integration into Cisco's broader ecosystem, ensuring enhanced threat detection and policy unification. Despite its complexity in command-line interfaces and management, Cisco Secure Firewall remains a potent tool for safeguarding data. It is widely adopted for edge security, VPN services, perimeter defense, and traffic segmentation, especially in hybrid settings. Essential sectors like banking and telecom benefit from its stable connectivity and centralized security management. Though there are challenges with costs and support for third-party APIs, the firewall's scalability and high availability provide comprehensive support for protecting network assets.

What are the key features of Cisco Secure Firewall?

Application Visibility: Offers in-depth visibility of application traffic to monitor and protect against threats.
Advanced Malware Protection: Protects against known and emerging malware threats with powerful detection capabilities.
URL Filtering: Manages and restricts access to websites, enhancing organizational data security.
VPN Capabilities: Ensures secure remote access and encrypted communication through strong VPN features.
Integration with Cisco Ecosystem: Enhances security measures with seamless integration with Cisco's suite of security tools.

What benefits and ROI should be expected from Cisco Secure Firewall?

Comprehensive Protection: Offers multi-layered security for diverse network environments, increasing overall data protection.
Performance Efficiency: High availability and scalability lead to improved network performance and resource management.
Management Simplification: Centralized security management streamlines policy deployment across networks.
Enhanced Threat Detection: Integration capabilities improve threat detection and mitigation for better security posture.

Cisco Secure Firewall is widely implemented across sectors like banking, education, ISPs, and telecoms. It fortifies data centers and network edge security, delivering strong protection for client access, hybrid environments, and intrusion prevention. In these industries, firewall solutions ensure secure connectivity and manage RTU traffic effectively, leveraging centralized management and integration with Cisco's security tools.

Cisco

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.

Zyxel

Sample Customers

Amazon Web Services, Microsoft, IBM, Cisco, Dell, HP, Oracle, Verizon, AT&T, T-Mobile, Sprint, Vodafone, Orange, BT Group, Telstra, Deutsche Telekom, Comcast, Time Warner Cable, CenturyLink, NTT Communications, Tata Communications, SoftBank, China Mobile, Singtel, Telus, Rogers Communications, Bell Canada, Telkom Indonesia, Telkom South Africa, Telmex, Telia Company, Telkom Kenya

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.

Information Not Available