No more typing reviews! Try our Samantha, our new voice AI agent.

Cisco IOS Security vs Palo Alto Networks K2-Series comparison

 

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
7.4
Cisco IOS Security delivered significant ROI through improved routing, security, stability, and cost-efficiency, despite competitive vendor pressures.
Sentiment score
6.2
Palo Alto Networks K2-Series improved cybersecurity, efficiency, and cost savings through enhanced visibility, automation, and reduced incident response times.
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
For CN-Series, there is no competitor which works the same way as Palo Alto does.
Principle Cloud Architect at a tech services company with 11-50 employees
 

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
8.0
Palo Alto Networks K2-Series support is praised for vendor responsiveness and expertise, though partner support is less reliable.
My impression is that the support quality has deteriorated over time.
Head of Cyber Defense Department and Network Technologies Department at Verso Altima
I would rate tech support from Palo Alto Networks at around eight out of ten points because we had dedicated people assigned to us.
Principle Cloud Architect at a tech services company with 11-50 employees
We get Gold support from them, and they are pretty good.
Design engineer at a construction company with 201-500 employees
I would rate the technical support for the Palo Alto Networks K2-Series from Palo Alto as nine out of ten points.
Director at MICROLOGIC NETWORKS PRIVATE LIMITED
 

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
7.8
Palo Alto Networks K2-Series offers scalable, flexible solutions for organizations, excelling in network expansion and handling diverse environments.
Vertical scaling allows you to purchase more powerful devices with additional RAM, compute, and larger model form factors.
Principle Cloud Architect at a tech services company with 11-50 employees
 

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
7.8
Palo Alto Networks K2-Series is praised for exceptional stability and dependability, with minor configuration and maintenance issues reported.
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
Palo Alto typically doesn't have many glitches.
Principle Cloud Architect at a tech services company with 11-50 employees
 

Room For Improvement

Cisco IOS Security struggles with integration, usability, cost, lacking features, complex licensing, performance, and requires enhancement and support.
Palo Alto Networks K2-Series needs better pricing, integration, usability, and AI to address user demands for support and scalability.
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
Enhancing web traffic protection would be a great upgrade.
enterprise architect at a tech services company with 1-10 employees
L1 engineers cannot work on the Palo Alto Networks K2-Series because it's too complex, which requires L2 and above level of engineers.
Director at MICROLOGIC NETWORKS PRIVATE LIMITED
With AI, if there is a Precision AI bundle that you're planning on exploring, then that definitely needs a significant uplift because currently it doesn't work for all the known models.
Principle Cloud Architect at a tech services company with 11-50 employees
 

Setup Cost

Cisco IOS Security is costly, favoring medium to large enterprises with longer-term savings over SMB challenges.
Palo Alto Networks K2-Series is expensive, suitable for large enterprises, with straightforward licensing but requires frequent price negotiations.
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's a little bit expensive.
enterprise architect at a tech services company with 1-10 employees
The pricing for the Palo Alto Networks K2-Series solution is affordable.
Director at MICROLOGIC NETWORKS PRIVATE LIMITED
 

Valuable Features

Cisco IOS Security offers scalable, stable solutions with VPN, AAA, firewall integration, and user-friendly management for high-demand environments.
Palo Alto Networks K2-Series provides advanced, scalable security with AI-driven features, strong threat prevention, and user-friendly management.
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
Overall, the K2-Series helps in much more protection, and dashboard compliances are being met.
Director at MICROLOGIC NETWORKS PRIVATE LIMITED
We had configured dynamic user groups and App-ID based policies, which makes it all Zero Trust.
Principle Cloud Architect at a tech services company with 11-50 employees
Mainly, it is very easy to understand, and the logs are very good.
Design engineer at a construction company with 201-500 employees
 

Categories and Ranking

Cisco IOS Security
Ranking in Firewalls
40th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
49
Ranking in other categories
Intrusion Detection and Prevention Software (IDPS) (16th)
Palo Alto Networks K2-Series
Ranking in Firewalls
35th
Average Rating
8.4
Reviews Sentiment
7.4
Number of Reviews
35
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 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 Palo Alto Networks K2-Series is 0.4%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Mindshare Distribution
ProductMindshare (%)
Palo Alto Networks K2-Series0.4%
Cisco IOS Security0.6%
Other99.0%
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.
TJ
Principle Cloud Architect at a tech services company with 11-50 employees
Has provided strong traffic visibility and efficient policy management for advanced network environments
Palo Alto Networks K2-Series could be improved, though I don't think of much. I'm unsure how widespread the adoption for K2-Series alone is. Looking at the base Palo Alto capabilities, they are going in the right direction. K2 specifically about its efficacy with all these 5G protocols, the GPRS tunneling protocol performed without many hiccups during testing. With AI, if there is a Precision AI bundle that you're planning on exploring, then that definitely needs a significant uplift because currently it doesn't work for all the known models. There are many false positives that need to be addressed. While it's still ahead of its competitors, on the AI security side, there is quite a room for improvement.
report
Use our free recommendation engine to learn which Firewalls solutions are best for your needs.
902,988 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Construction Company
19%
Financial Services Firm
10%
Computer Software Company
8%
Manufacturing Company
8%
Performing Arts
15%
Construction Company
14%
Financial Services Firm
12%
Marketing Services Firm
9%
 

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 Business15
Midsize Enterprise7
Large Enterprise13
 

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...
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 kind of depends what you value most. PA is good at app control, web filtering a...
What is your experience regarding pricing and costs for Palo Alto Networks K2-Series?
The pricing for the Palo Alto Networks K2-Series solution is affordable and there are no complaints about the licensing.
What needs improvement with Palo Alto Networks K2-Series?
Palo Alto Networks K2-Series could be improved, though I don't think of much. I'm unsure how widespread the adoption for K2-Series alone is. Looking at the base Palo Alto capabilities, they are goi...
 

Also Known As

IOS Security
No data available
 

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
State of North Dakota, SEGA, Alameda County Office of Education, Temple University, VERGE, CAME
Find out what your peers are saying about Cisco IOS Security vs. Palo Alto Networks K2-Series and other solutions. Updated: June 2026.
902,988 professionals have used our research since 2012.