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Cisco IOS Security vs Fortinet FortiGate comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 29, 2026

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
7.4
Cisco IOS Security delivered significant ROI through improved routing, security, stability, and cost-efficiency, despite competitive vendor pressures.
Sentiment score
5.9
Fortinet FortiGate offers a high ROI through enhanced productivity, efficiency, security, cost savings, and simplified management.
The return on investment is satisfactory with Cisco products as they have long lifespans, and our customers are satisfied with them.
Head of Cyber Defense Department and Network Technologies Department at Verso Altima
Clients are now comfortable and not wasting productive hours on IT support.
Managing Director at a manufacturing company with 10,001+ employees
The automation part is giving us a cost benefit and speed; we can react faster.
BDM Fortinet & BDM Teamlead at Exclusive Networks
It's a very useful tool to mitigate and protect your enterprise.
Staff Infrastructure & Security Engineer at Mozn Systems
 

Customer Service

Sentiment score
6.7
Cisco IOS Security support is generally praised for speed and skill, though some report delays and complexity in access.
Sentiment score
6.5
Fortinet FortiGate's 24/7 support is generally well-rated but needs improvement in response speed for urgent issues.
My impression is that the support quality has deteriorated over time.
Head of Cyber Defense Department and Network Technologies Department at Verso Altima
The quick resolution of issues with Fortinet FortiGate is due to the support of the company and the fact that the equipment is easy to work with.
IT Manager at a consultancy with 10,001+ employees
I would rate the technical support for Fortinet FortiGate a ten out of ten.
NAC Support at Rah Infotech Pvt Ltd
As a solution provider, when I encounter problems, I connect directly with Fortinet support, and they provide solutions within a very short time.
Manager, Information Technology Operation/Presales at TechMonarch
 

Scalability Issues

Sentiment score
7.4
Cisco IOS Security offers scalable, enterprise-level solutions but may increase costs and limit universality due to required hardware.
Sentiment score
7.1
Fortinet FortiGate is praised for scalability and adaptability across enterprises, though some users face cloud scaling and upgrade challenges.
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.
IT Manager at Daltons Limited
The variation comes in terms of the interfaces and throughputs, but from a security perspective, you get the same benefit, irrespective of whether you have an entry-level unit or an enterprise.
Cewa Solutions Architect at a tech services company with 11-50 employees
We determine sizing based on multiple factors: number of users, available links, traffic types, server count, services in use, and whether services will be published.
General Surgery Specialist at Helwan University Cairo
 

Stability Issues

Sentiment score
7.6
Cisco IOS Security is generally reliable with occasional issues, frequently updated for stability, scoring 7-10 in satisfaction.
Sentiment score
7.7
Fortinet FortiGate offers reliable and consistent performance, with quick resolution for occasional bugs, ensuring minimal downtime and high availability.
We find Cisco products stable and thoroughly tested before new software or firmware versions are released.
Head of Cyber Defense Department and Network Technologies Department at Verso Altima
I find Cisco IOS Security to be a very stable product.
Partner/Owner and Director of Human Resources at Up arrow Systems
We're experiencing 99.999% availability consistently.
Manager, Information Technology at a consumer goods company with 11-50 employees
I would rate the stability of Fortinet FortiGate a ten out of ten.
NAC Support at Rah Infotech Pvt Ltd
Currently, we are experiencing a general outage of one of the main internet service providers of the Dominican Republic, and we have not been impacted in our operations because with SD-WAN, we have another internet service provider and we are working with the second WAN connection without any disruption.
CISO at a financial services firm with 1,001-5,000 employees
 

Room For Improvement

Cisco IOS Security struggles with integration, usability, cost, lacking features, complex licensing, performance, and requires enhancement and support.
Fortinet FortiGate users face high costs, integration and stability issues, sluggish support, and need improvements in usability and security features.
Cisco changes their licensing policy quite frequently, which is becoming confusing and complicated.
Head of Cyber Defense Department and Network Technologies Department at Verso Altima
These sessions should be around five to ten minutes long, allowing users and partners to quickly grasp the information without disrupting their daily tasks.
Managing Director at a manufacturing company with 10,001+ employees
It would be better for customers to get immediate replacements even with a standard subscription.
Director at a tech services company with 11-50 employees
It is how quickly each of these companies adapts to that and brings in more value to the customer.
Principal Consultant at Epitome Infotech Solutions (P) Ltd
 

Setup Cost

Cisco IOS Security is costly, favoring medium to large enterprises with longer-term savings over SMB challenges.
Fortinet FortiGate is cost-effective with a good feature set, ideal for mid to large enterprises, though complex licensing.
The cost of Cisco IOS Security for customers is on the higher end of pricing compared to the competition, depending on the targeted customers.
Head of Cyber Defense Department and Network Technologies Department at Verso Altima
It offers cost savings as it is generally cheaper than the competition.
IT Infrastructure Architect at Apotek 1
It is about 20% cheaper.
Network Security Engineer at TD SYNNEX
The advantages of Fortinet FortiGate over its competitors include good pricing and meeting our requirements at a lower cost.
Information Technology Infrastructure Section Head at a consumer goods company with 11-50 employees
 

Valuable Features

Cisco IOS Security offers scalable, stable solutions with VPN, AAA, firewall integration, and user-friendly management for high-demand environments.
Fortinet FortiGate offers robust security, ease of use, and integration, with cost-effectiveness and reliable support, enhancing network efficiency.
This solution, called Network Access Controller, handles authentication, authorization, and accounting for devices accessing the network.
Partner/Owner and Director of Human Resources at Up arrow Systems
The best features of Cisco IOS Security are its integration with software management tools such as Cisco DNA Center and Cisco ICE, which provide centralized policy and network access control.
Head of Cyber Defense Department and Network Technologies Department at Verso Altima
They put in a thing called the FortiCookbook, which is very easy to read with real-life scenarios that make networking tasks like joining networks very straightforward.
IT Manager at Daltons Limited
The firewall and VPN features are the most valuable in protecting our customers' networks.
Sales & Support at a tech services company with 1-10 employees
The most valuable feature is the deep inspection for traffic, which is capable of identifying zero-day attacks.
Consultant at SKYE AS
 

Categories and Ranking

Cisco IOS Security
Ranking in Firewalls
39th
Ranking in Intrusion Detection and Prevention Software (IDPS)
17th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
49
Ranking in other categories
No ranking in other categories
Fortinet FortiGate
Ranking in Firewalls
1st
Ranking in Intrusion Detection and Prevention Software (IDPS)
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
592
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st), ZTNA (1st), Unified Threat Management (UTM) (1st)
 

Mindshare comparison

As of June 2026, in the Firewalls category, the mindshare of Cisco IOS Security is 0.6%, up from 0.3% compared to the previous year. The mindshare of Fortinet FortiGate is 15.1%, down from 21.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Mindshare Distribution
ProductMindshare (%)
Fortinet FortiGate15.1%
Cisco IOS Security0.6%
Other84.3%
Firewalls
 

Featured Reviews

Danijel Cerovecki - PeerSpot reviewer
Head of Cyber Defense Department and Network Technologies Department at Verso Altima
Have faced challenges in keeping licensing clear and consistent while ensuring reliable network protection
We are a Gold Partner with Cisco. Our customers come from various industries, including service providers, and we target service providers and enterprise customers.We do not extensively use Zone-Based Firewalls in Cisco IOS Security, instead typically deploying standalone firewalls such as Cisco FTDs or Cisco ASA devices. For threat analytics and vulnerability scanning, we utilize third-party vendors with dedicated devices and software. We use products such as Tenable from Nessus for this type of analysis. We have implemented Secure Access Control Server in Cisco IOS Security, which combines multiple security mechanisms including AAA, 802.1X for network access control with Cisco ICE, TrustSec for identity-based segmentation, and Cisco DNA Center. Cisco IOS Security's VPN support is comprehensive and increasingly important in daily communication, from basic site-to-site tunnels to remote access VPNs and SD-WAN secure VPNs. Protecting and encrypting communication is essential in modern networks. The challenges with Cisco IOS Security are more operational than product-related. There is an understaffing issue, making automation and orchestration capabilities particularly valuable. For the products themselves, we only encounter routine operational matters such as addressing new vulnerabilities and patching. For those considering Cisco IOS Security, it is important to understand that Cisco offers a complete ecosystem. When embracing the Cisco ecosystem fully, customers receive excellent products and comprehensive solutions. On a scale of 1-10, I rate Cisco IOS Security a 9.
Mageshwaran S - PeerSpot reviewer
Solution Architect at airtel
Enables customers to manage security effortlessly with intuitive features and easy integration
In terms of improvements for Fortinet FortiGate, they could offer evaluation licenses, as compared to Meraki, which provides a 90-day evaluation. In Fortinet FortiGate, they do not provide standard evaluation licenses; instead, we need to request them from the OEM through the account manager for POCs. If we want to conduct a demo, we need to work with real hardware. In comparison to Cisco, we have DCloud, which helps with providing demos to customers, but in Meraki, I need to reach out to them, book a lab, and they need to provide all the hardware. I need remote access and L3 engineers to program it; only then can I offer a real-time demo to the customer.
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Comparison Review

it_user216600 - PeerSpot reviewer
Senior Technical Consultant with 51-200 employees
Jan 3, 2016
Sophos UTM vs. Fortinet FortiGate
I have used both Sophos and Fortinet products in production and I have found the Sophos UTM appliances (hardware and virtual) to be a better fit most of the time -- with a few caveats which I will touch on below. In both instances, the transition from TMG will be mostly straightforward. The main…
 

Top Industries

By visitors reading reviews
Construction Company
17%
Computer Software Company
10%
Financial Services Firm
10%
Manufacturing Company
8%
Comms Service Provider
10%
Computer Software Company
10%
Manufacturing Company
9%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise14
Large Enterprise18
By reviewers
Company SizeCount
Small Business370
Midsize Enterprise138
Large Enterprise195
 

Questions from the Community

What is your experience regarding pricing and costs for Cisco IOS Security?
The cost of Cisco IOS Security for customers is on the higher end of pricing compared to the competition, depending on the targeted customers.This can be a major issue as enterprise customers are o...
What needs improvement with Cisco IOS Security?
Regarding improvements in Cisco IOS Security, what consistently confuses me is the inability of Cisco to maintain a clear licensing policy.This is an issue that I have observed for years now. Cisco...
What is your primary use case for Cisco IOS Security?
The main use cases for Cisco IOS Security include elementary device hardening, access control, control-plane policing, AAA (Authentication, Authorization, and Accounting), network security, Layer 2...
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 at large. In my opinion, Fortinet would be the best option and l use Fortinet too...
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 the firewalls change every 5 to 7 years as stated but you really do need to upg...
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 good. The most valuable features for me are their web and email filtering. I wou...
 

Also Known As

IOS Security
Fortinet FortiGate Next-Generation Firewall
 

Overview

 

Sample Customers

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
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
Find out what your peers are saying about Cisco IOS Security vs. Fortinet FortiGate and other solutions. Updated: June 2026.
900,747 professionals have used our research since 2012.