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Azure Firewall vs Zyxel Unified Security Gateway comparison

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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:
 

Categories and Ranking

Azure Firewall
Average Rating
7.6
Reviews Sentiment
6.2
Number of Reviews
45
Ranking in other categories
Firewalls (13th), Microsoft Security Suite (11th)
Zyxel Unified Security Gateway
Average Rating
6.6
Reviews Sentiment
4.9
Number of Reviews
4
Ranking in other categories
Unified Threat Management (UTM) (11th)
 

Featured Reviews

AD
Technical Solution Architect at liwa
Has enabled us to manage internal access securely but lacks accessible documentation for deeper integration
We haven't required any support, but overall, Microsoft support is good. Whenever we raise any concern, they are supporting us on time. Currently it is good. We are not a public-facing company; it is a retail company only, so that's why I don't think it is required. We don't have an e-commerce solution on Azure. For that, we are using a different stack for the e-commerce portal, so that is not in Azure. We are only using it for business applications, and I think L3 filtering in network security suffices for our problem currently. Regarding scalability for Azure Firewall, we don't need it here because the request to the application is internal. All are internal users. So there is not much request to get into the application, so scalability is not required for us in the current scenario.
reviewer2399337 - PeerSpot reviewer
Sales and technical consultant at a manufacturing company with 10,001+ employees
User has benefited from stable performance and effective completion of security tasks
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…

Quotes from Members

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

Pros

"It is pretty straightforward for what I'm using it for."
"Azure Firewall simplifies everything, securing our APIs and systems so that suspicious IPs do not access our sophisticated systems."
"It provided ease of maintenance, if a new firewall was needed, we only had to run the pipelines for this, so the maintenance was very easy and it reduced work by 30% while saving maintenance and operational costs by 15%."
"The scalability is very good and you don't have to think about sizing, as in the case of a traditional firewall where you have to think about the throughput."
"The features of Azure Firewall that I find most valuable include DNS inspection, forward proxy, and security, particularly on the edge."
"The solution has many useful features. For example, the solution allows users to create virtual IP addresses."
"With Azure products, customer support is really good."
"I like its order management feature. It doesn't have the kind of threat intelligence that Palo Alto has, but the order management makes it much simpler to know the difference."
"This is a capable appliance and the standard features work well for us."
"The most valuable features of the solution stem from web filtering, malware protection, and antivirus."
"The solution can scale well."
"The cost is very low."
"The Zyxel Unified Security Gateway solution is stable and does its job effectively."
 

Cons

"For larger enterprises, they need to adjust the scalability."
"An Azure firewall is not a real firewall. It requires features such as IDS, IPS, anti-virus, et cetera."
"Right now, with Azure Firewall, we cannot have a normal inbound traffic flow. For inbound, Microsoft suggests using application gateways, so the options are very limited. I cannot use this firewall as an intermediate firewall because of the limitations, and I cannot point routing to another firewall. So if I want to use back-to-back firewall architecture in my environment, I cannot use Azure Firewall for that type of configuration either."
"There is a lot of room for improvement, so I would rate it a six out of ten overall."
"There is room for further integration of AI into the system."
"The solution lacks artificial intelligence and machine learning. It might be in the roadmap. However, currently, it's not available."
"This solution is not mature when it comes to handling perimeter traffic like internet browsing."
"Azure should be able to work better as a balancer also, instead of just being a firewall. It should have a wider mandate."
"I have never seen it in any company that I've worked with before, and I would advise other companies not to buy it."
"Although manageable, the user interface is a little bit slow and could be improved. The advanced UI allows me to do whatever I want, but this is where the issue of speed exists."
"The integration capability is quite challenging. The system is very complicated, and many features are hidden."
"The product has some scalability and data management issues where improvements are required."
"Sometimes it reboots when you least expect it, and that's the main issue."
 

Pricing and Cost Advice

"It is expensive, especially with the premium functions. For one of the clients, it was very expensive. You have to use it more at an enterprise level, and there, it was not at an enterprise level. So, it was very costly, but security-wise, it was a very wise decision to use it that way."
"Azure Firewalls operate on a pay-as-you-go model, similar to cloud services."
"It is pay-as-you-go. So, you pay based on the usage. If I remember it well, there is a basic fee, and there is a traffic fee. It is not per month. It is per hour or something like that. It is not so expensive."
"Before choosing this solution, we evaluated others, and we found this to be the most cost-effective."
"The pricing of Azure Firewall is pay-as-you-go. Fortinet also has a pay-as-you-go model, but Azure's pricing is higher and, with FortiGate, you also have the license."
"The solution is cheaper than other brands. My company has an enterprise contract and we finally got a good price with Azure."
"Azure Firewall is expensive."
"The total cost of ownership is much less than Palo Alto, Cisco, or any other brand."
"This gateway is pretty cheap."
"The price of Zyxel Unified Security Gateway is good compared to other similar products in the market."
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Top Industries

By visitors reading reviews
Financial Services Firm
10%
Manufacturing Company
10%
Computer Software Company
9%
Outsourcing Company
9%
Comms Service Provider
18%
Outsourcing Company
9%
Financial Services Firm
8%
Construction Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business13
Midsize Enterprise12
Large Enterprise22
No data available
 

Questions from the Community

What is a better choice, Azure Firewall or Palo Alto Networks NG Firewalls?
Azure Firewall Vs. Palo Alto Network NG Firewalls Both solutions provide stellar stability and security. Azure Firewall is easy to use and provides excellent support. Valuable features include int...
How does Azure Firewall compare with Palo Alto Networks VM Series?
Both products are very stable and easily scalable. The setup of Azure Firewall is easy and very user-friendly and the overall cost is reasonable. Azure Firewall offers a solid threat awareness, can...
Which would you recommend - FortiGate VM or Azure Firewall?
Both of these solutions are excellent options that provide flexible scalability and solid security. Fortinet Fortigate VM integrates well and has excellent centralized reporting. It is very easy to...
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 comparisons with other solutions. When our license expires, we plan to explore ope...
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 looking for something new that is slightly simpler. Regarding user experience, the...
What is your primary use case for Zyxel Unified Security Gateway?
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 thin...
 

Overview

Find out what your peers are saying about Azure Firewall vs. Zyxel Unified Security Gateway and other solutions. Updated: October 2026.
915,341 professionals have used our research since 2012.