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Cisco IOS Security vs Fortinet FortiOS comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 16, 2024

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
7.3
Fortinet FortiGate users experience cost reduction, improved security, and efficiency, with quick returns despite initial challenges, ensuring satisfaction.
Sentiment score
8.1
Cisco IOS Security offers high ROI through improved efficiency, reduced risks, cost savings, and a beneficial subscription model.
Sentiment score
8.0
Fortinet FortiOS offers scalability, ease of use, and competitive pricing, enhancing ROI despite borderline scenarios in some cases.
Clients are now comfortable and not wasting productive hours on IT support.
We have experienced a positive return on investment by utilizing Fortinet's products.
There's definitely an ROI. Having a centralized way of managing and applying policies across the entire organization always helps.
Once it is deployed, I do not have to revisit or replace the hardware.
The pricing of FortiOS is competitive and reasonable compared to other leading products such as Palo Alto and Check Point.
Fortinet is strong in terms of cost and compatibility with other vendors.
 

Customer Service

Sentiment score
7.0
Fortinet FortiGate's customer service varies globally, with North America and Europe receiving quicker support compared to South Asia.
Sentiment score
7.0
Cisco IOS Security offers expert support but faces criticism for slow responses and communication challenges, remaining a strong choice.
Sentiment score
7.7
Fortinet FortiOS support is praised for responsiveness but criticized for slow responses and underqualified teams on complex issues.
He explained that it required a command line configuration, as it couldn't be done through the graphical user interface.
I would rate their support for FortiGate a nine out of ten.
They offer very accurate solutions.
I would rate them nine or ten out of ten.
Fortinet technical support is very responsive and helpful.
Support engineers sometimes lack eagerness to assist with issues such as the memory problem.
 

Scalability Issues

Sentiment score
7.3
Fortinet FortiGate is scalable, adaptable, and supports dynamic routing, but may face issues with non-Fortinet devices and licensing.
Sentiment score
7.5
Cisco IOS Security is praised for scalability and efficiency but may require additional hardware and specific Cisco equipment.
Sentiment score
8.8
Fortinet FortiOS excels in scalability, supporting diverse environments and expansion, despite some hardware limitations requiring forward planning.
They scale up really well from smaller models like the FortiGate 40 and 50 to bigger sites with the FortiGate 100 for more throughput - up to enterprise datacenters.
The processor, the microprocessor and the security processors are very intelligent so they can scale significantly and manage that well.
There are many options available, and we can choose the size of the box based on our requirements.
When customers' networks grow and needs expand, we can easily switch between models to trade up devices.
It allows for the expansion of users and devices without additional licensing costs.
Fortinet FortiOS is scalable, allowing the addition of users and firewalls as required.
 

Stability Issues

Sentiment score
7.9
Fortinet FortiGate is praised for stability, with updates enhancing reliability, though rare configuration issues may arise under heavy traffic.
Sentiment score
7.7
Cisco IOS Security is praised for stability and reliability, with few integration issues reported when not using Cisco equipment.
Sentiment score
7.1
Fortinet FortiOS is praised for high stability, with rare issues quickly resolved, outperforming competitors like Cisco and SonicWall.
There are no bugs or glitches, and it doesn't crash or freeze.
Improper handling of these can lead to a memory surge, a well-known bug that can cause the entire system to freeze.
It is less stable than Palo Alto Networks and Check Point firewalls because there are lots of bugs in the latest firmware.
I find Cisco IOS Security to be a very stable product.
While the product is largely stable, it sometimes faces memory issues in specific versions like 11 OE, which can be disruptive.
Stability is a seven out of ten because during version migrations, and sometimes with new versions, Fortinet is not as good.
I would rate the stability of FortiOS as an eight out of ten.
 

Room For Improvement

Enhancements are needed in interface stability, SNMPv3 support, integration, user intuitiveness, analytics, cost-effectiveness, and customer support responsiveness.
Cisco IOS Security needs more intuitive management, better performance, advanced features, and improved integration, usability, and support.
Fortinet FortiOS needs enhanced VPN, hardware compatibility, reduced update size, improved GUI functionality, and better pricing and reporting tools.
If I have put 10 GBPS of throughput on a firewall and I enable all of these features available, such as IPS or UTM functionalities, the throughput comes down to 1 GBPS.
By providing an integrated solution, users would have access to all features and functionalities within a single window, eliminating the need to navigate through multiple windows.
Investing in a solution that can accommodate such growth would be more cost-effective than repeatedly purchasing new hardware.
Fortinet FortiOS faces memory issues, which can lead to unexpected downtimes.
There should be more documentation on how to use the CLI or how to perform CLI versions of tasks that can be done through the GUI.
Compared to other market leaders like Palo Alto and Check Point, FortiOS has many bugs in its initial releases.
 

Setup Cost

Fortinet FortiGate offers cost-effective pricing, often cheaper than competitors, with variations based on hardware and licensing options.
Cisco IOS Security is pricey, subscription-based, aimed at medium-to-large enterprises, with recent SMB options, often seen as expensive.
Fortinet FortiOS is cost-effective initially but pricier for renewals, suitable for mid-sized to large enterprises.
Secure SD-WAN is free of charge.
The most expensive part is the renewal of the license subscription.
FortiGate is priced lower than Palo Alto.
It is an affordable solution for us.
Fortinet products are somewhat pricey, similar to Cisco equivalents, however, they have justified their price point.
I am satisfied with the pricing, licensing, and setup costs of FortiOS, rating it nine out of ten compared to other familiar leading firewalls.
 

Valuable Features

Fortinet FortiGate excels with robust security features, intuitive interface, affordable pricing, supporting VPN, firewall, UTM, and SD-WAN.
Cisco IOS Security enhances network security with robust features, user-friendly interface, and strong performance, preferred over competitors.
Fortinet FortiOS is praised for user-friendly features, robust threat detection, and seamless integration, making it a top security choice.
Fortigate blocks unusual traffic and therefore secures our network.
It's easy to monitor the end-to-end network through the firewall.
The firewall, IPS, and VPN functions are the most valuable features.
This solution, called Network Access Controller, handles authentication, authorization, and accounting for devices accessing the network.
It is user-friendly when it comes to turning on features, and it has been reliable and effective.
The threat intelligence in FortiOS is very high, and the system is scalable without additional licensing costs.
The solution offers good threat intelligence, which is crucial for our customers' security purposes.
 

Categories and Ranking

Fortinet FortiGate
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Ranking in Firewalls
2nd
Average Rating
8.4
Reviews Sentiment
7.2
Number of Reviews
318
Ranking in other categories
Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st)
Cisco IOS Security
Ranking in Firewalls
22nd
Average Rating
8.0
Reviews Sentiment
6.9
Number of Reviews
48
Ranking in other categories
Intrusion Detection and Prevention Software (IDPS) (8th)
Fortinet FortiOS
Ranking in Firewalls
19th
Average Rating
8.4
Reviews Sentiment
7.9
Number of Reviews
80
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of March 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 20.8%, up from 17.8% compared to the previous year. The mindshare of Cisco IOS Security is 0.2%, up from 0.2% compared to the previous year. The mindshare of Fortinet FortiOS is 1.0%, up from 1.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls
 

Featured Reviews

EhabAli - PeerSpot reviewer
Efficient, user-friendly, and affordable
In the past, NSS Labs was utilized to test files and verify the numbers and datasheets. It would be beneficial to have an organization or testing lab that can verify the numbers in our datasheets since changes are frequently made, which can be inconvenient for review. For instance, when comparing different competitors such as Forcepoint, Palo Alto, and Check Point, the throughput or numbers in the datasheet may be lower than the actual numbers. Conversely, Fortinet typically reports very high numbers, but they cannot be replicated in the real world. Therefore, it would be advantageous for them to partner with a neutral testing organization such as NSS Labs to validate these numbers, thus providing more credibility and comfort to everyone regarding the accuracy of the datasheets. For the migration, everyone has a firewall in use and I am selling Fortinet. Typically, I am replacing another firewall. Previously, there was a tool available to convert configurations from one firewall, such as Palo Alto, to Fortinet, but this tool is no longer free. If it could be made free again, it would be very beneficial. This tool shows a lot of promise and is very good. Making it free would help many companies deliver their products in a more efficient and integrated way. It would also be more valuable to include the tool with the firewall package or license instead of having to pay extra for it. Paying extra puts more pressure on small companies to deliver the firewall and complete the configuration, especially if they have hundreds or thousands of policies. It's very painful to move through these policies line by line. The stability has room for improvement. When it comes to Secure SD-WAN, everything is fine. They are going the right way. SD-WAN is very promising. They can provide the SD-WAN solution separately, but they will not take this approach because even the smallest firewall can support the features, so there is no need to have a separate service or appliance. They are following the right steps, and there is nothing to be improved. Feature-wise, I'm really satisfied with the new release, and the features they have added. For now, it's fine.
Karthik Venkataraman - PeerSpot reviewer
User-friendly and excels in documentation, making it easier to resolve issues
Cisco IOS Security is a mature product with extensive capabilities, serving as the base for the defense layer. It offers good network visibility, which helps in rapid response through the Rapid Threat Containment feature. Its deployment and configuration are straightforward. From a networking perspective, for instance, Cisco IOS incorporates time-tested security features. The zone-based firewall feature has significantly influenced our network security management. For instance, when managing multiple geolocations, it's essential to apply geographically appropriate policies. If a customer operates within the UK zone, I need to implement UK-specific policies. This approach is also applicable to customers in the Asia Pacific and UK regions. It enables me to tailor security policies based on the geographical location of my customers, such as adjusting policies for customers in China or Japan. This flexibility helps in creating a comprehensive zone list. Additionally, this feature allows for seamless service agreements between all zones from headquarters, providing access to all zones within the firewall we create. Essentially, it facilitates the creation of zones within the firewall.
Harshama Silva - PeerSpot reviewer
We have improved network security with user-friendly controls and high threat intelligence
FortiOS is very user-friendly and easy to configure for L1, L2, and L3 personnel. Its web filtering, application control, and IPS features are very user-friendly, easy to manage, and deploy. The threat intelligence in FortiOS is very high, and the system is scalable without additional licensing costs. FortiOS allows us to expand the number of users and devices as our network needs grow.
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Top Industries

By visitors reading reviews
Educational Organization
22%
Computer Software Company
14%
Comms Service Provider
7%
Manufacturing Company
6%
Computer Software Company
29%
Financial Services Firm
13%
Government
9%
Manufacturing Company
7%
Computer Software Company
17%
Financial Services Firm
9%
Manufacturing Company
9%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?
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 ...
What do you like most about Cisco IOS Security?
Cisco IOS Security is a mature product with extensive capabilities, serving as the base for the defense layer. It off...
What is your experience regarding pricing and costs for Cisco IOS Security?
Pricing can be reduced. I rate the current price for the product a four out of ten.
What needs improvement with Cisco IOS Security?
While I do not have specific recommendations for improvement, pricing can be reduced.
Features comparison between Palo Alto and Fortinet firewalls
In the best tradition of these questions, Feature-wise both are quite similar, but each has things it's better at, it...
What do you like most about Fortinet FortiOS?
The SSL VPN is fee for use is most attractive.
What is your experience regarding pricing and costs for Fortinet FortiOS?
I rate the pricing for FortiOS as eight or nine out of ten. It is an affordable solution for us.
 

Also Known As

FortiGate 60b, FortiGate 60c, FortiGate 80c, FortiGate 50b, FortiGate 200b, FortiGate 110c, FortiGate, Fortinet Firewall
IOS Security
No data available
 

Overview

 

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
Arup Group, Brunel University London, City of Biel, Gobierno de Castilla-La Mancha, K&L Gates , New South Wales Rural Fire Service, Offshore Northern Seas, Transplace
Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
Find out what your peers are saying about Cisco IOS Security vs. Fortinet FortiOS and other solutions. Updated: March 2025.
842,388 professionals have used our research since 2012.