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Cisco Secure Firewall vs Palo Alto Networks K2-Series comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 30, 2025

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
Sponsored
Ranking in Firewalls
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
574
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Intrusion Detection and Prevention Software (IDPS) (1st), Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st), ZTNA (2nd), Unified Threat Management (UTM) (1st)
Cisco Secure Firewall
Ranking in Firewalls
7th
Average Rating
8.2
Reviews Sentiment
7.4
Number of Reviews
429
Ranking in other categories
Cisco Security Portfolio (3rd)
Palo Alto Networks K2-Series
Ranking in Firewalls
36th
Average Rating
8.4
Reviews Sentiment
7.7
Number of Reviews
34
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 20.4%, up from 19.1% compared to the previous year. The mindshare of Cisco Secure Firewall is 6.2%, up from 5.3% compared to the previous year. The mindshare of Palo Alto Networks K2-Series is 0.1%, up from 0.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Market Share Distribution
ProductMarket Share (%)
Fortinet FortiGate20.4%
Cisco Secure Firewall6.2%
Palo Alto Networks K2-Series0.1%
Other73.3%
Firewalls
 

Featured Reviews

Vasu Gala - PeerSpot reviewer
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.
Phil Shiflett - PeerSpot reviewer
Unified policies streamline network management but complex licensing requires attention
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.
Krishnakumar M - PeerSpot reviewer
One of the best tools for the prevention of evasive threats
There is a feature called granular application controls, which I liked. Instead of relying on ports and IP addresses, they use AMP ID. This kind of solution is very good. Another valuable feature is the prevention of evasive threats, which is one of the best tools I've encountered. SSL decryption and app ID-based SSL decryption are also impressive, along with the integration with user ID. Identity-based policies ensuring only authorized users can access specific resources are excellent features. Normally, there is something called SIM or SCIM in IDA IDM, but this feature is provided on the box, which is exemplary.

Quotes from Members

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

Pros

"On a scale of one to ten, I rate this solution 10 out of 10."
"The solution is stable."
"Fortinet FortiGate has SD-WAN, FortiView, antivirus, sandbox, and IPS, which are generally well-known features."
"This is an easy solution to deploy."
"It's a firewall that secures our internal network. I have been using it since 2013, and I find that most of the features are advanced, and very user friendly."
"We use the filtering feature the most. It has filtering and inbuilt securities. We can create customized rules to define which users can access a particular type of site. We can create policies inside the firewall."
"Fortinet FortiGate is one of the most solid and secure firewalls as long as you keep it up to date. The price is right; it's not very expensive."
"I have found most of the features to be good with excellent functionality."
"Cisco products are on the pricier side; that said, they're worth it."
"Basic firewalling is obviously the most valuable. In addition to that, secure access and remote access are also very useful for us."
"Its efficiency and security are the most important. We are more efficient and more secure."
"The clusters in data centers are great."
"With Cisco, there are a lot of features such as the network map. Cisco builds the whole network map of the machines you have behind your firewall and gives you insight into the vulnerabilities and attributes that the host has. Checkpoint and Fortinet don't have that functionality directly on the firewall."
"The monitoring dashboard is valuable to us for troubleshooting."
"They provide DDoS protection and multi-factor authentication. That is a good option as it enables work-from-home functionality."
"One of the nice things about Firepower is that you can set it to discover the environment. If that is happening, then Firepower is learning about every device, software operating system, and application running inside or across your environment. Then, you can leverage the discovery intelligence to get Firepower to select the most appropriate intrusion prevention rules to use for your environment rather than picking one of the base policies that might have 50,000 IPS rules in it, which can put a lot of overhead on your firewall. If you choose the recommendations, as long as you update them regularly, you might be able to get your rule set down to only 1,000 or 1,500, which is a significant reduction in a base rule set. This means that the firewall will give you better performance because there are less rules being checked unnecessarily. That is really useful."
"One of the most valuable features is Palo Alto's firewall management. We find it easier to manage the firewall centrally."
"Everything I could possibly want has already been implanted in the new version."
"K2-Series' best features include its scalability, which is the best on the market."
"I have found the threat profile feature valuable."
"As long as the solution is kept updated, it's pretty stable."
"Palo Alto has an approach that makes the configuration easier not only for the customers but also for the IT help for the customers."
"The most valuable feature is availability."
"The solution offers effective security features such as HIDS (Host-based Intrusion Detection System) in global products."
 

Cons

"We sometimes have issues with FortiGate's routing table in the latest firmware update. We had to downgrade the device because our customers complained about bugs."
"This product could be improved with Active directory integration and better handling in IPsec and GRE Tunnels."
"They could simplify their deployment process, especially when customers have existing devices."
"In the balance between links feature normally you can just choose one option to balance. It would be better for the solution to have more than one option, preferably three."
"It could use more templates for third-party site-to-site VPN setups other than FortiGate and Cisco."
"Fortinet FortiGate needs to improve to be on par with its competitors, such as Palo Alto and Sophos. They are the market leaders. Fortinet FortiGate needs to improve its capabilities. However, we are happy with Fortinet FortiGate."
"It's my understanding that more of the current generation features could be brought in. There could be more integration with EDRs, for example."
"The pricing of the solution should be more affordable"
"The service could use a little more web filtering. If I compare it to Cyberoam, Cyberoam has more the web filtering, so if you want to block a website, it's easier in other solutions than in Cisco."
"Most of the features don't work well, and some features are missing as well."
"I was just trying to learn how this product actually operates and one thing that I see from internal processing is it does fire-walling and then sends it to the IPS model and any other model that needs to be performed. For example, content checking or filtering will be done in a field processing manner. That is something that causes delays in the network, from a security perspective. That is something that can be improved upon. Palo Alto already has implemented this as a pilot passed processing. So they put the same stream of data across multiple modules at the same time and see if it is giving a positive result by using an XR function. So, something similar can be done in the Cisco Firepower. Instead of single processing or in a sequential manner, they can do something similar to pile processing. Internal function that is something that they can improve upon."
"It is confusing to have two management interfaces, e.g., ASDM and Firepower Management Center."
"The management usability and security of Cisco Firewall are based on Firepower Management Center, which is quite out of date compared to other vendors."
"Firepower's user experience should be a little bit better."
"It is expensive."
"The pricing is a bit high."
"Threat prevention could use improvement. Not just in malware exploits and C2 traffic; enhancing web traffic protection would be a great upgrade."
"It is recommended that the Palo Alto Networks K2-Series be implemented step by step for the Panorama. Sometimes we can't overwrite the configurations because it fails."
"The solution needs a series of OS changes."
"Palo Alto doesn't have extended visibility to the end point in their firewalls."
"The technical support, and how they provide it to the client, needs to be improved."
"The ease of management and configuration should be improved."
"Sometimes there are interactions with support or the provider that are not ideal."
"Threat prevention could use improvement."
 

Pricing and Cost Advice

"The solution's pricing is competitive."
"The pricing of Fortinet FortiGate is average, not cheap or overly expensive compared to other firewall solutions in the market. It's effective and affordable for customers."
"Fortinet is the least expensive solution."
"The pricing is reasonable."
"It's very competitive."
"Pricing is good. They offer a lot of things, the most important is the support. Every time you upgrade your license, you also get insurance for the equipment. If you have any problem with equipment, they send in new equipment."
"​We saved a bundle by not needing all the past appliances from an NGFW.​"
"Work through partners for the best pricing."
"Cisco devices are for sure costly and budget could be an important constrain on selecting them as our security solution."
"The solution was chosen because of its price compared to other similar solutions."
"I'd say it's probably well-priced."
"All our requirements which we need performed by the firewall (e.g. VPN, URL white-listing, or IP based white-listing, etc.) have separate licenses and costs."
"We are partners with Cisco. They are always one call away, which is good. They know how to keep their customers happy."
"For me, personally, as an individual, Cisco Firepower NGFW Firewall is expensive."
"Licensing, recently, has been getting more complicated. In particular, the Smart Licensing that came out is quite complicated. I don't know what's going on.... They call it Smart, but it's complicated. I prefer the traditional license where you buy it once."
"The licensing is not good, it's confusing. I'm an engineer so I don't care about the actual price that much but the licensing part is confusing."
"The price of this solution is too high."
"It would be nice if they lowered their prices for small businesses."
"This solution is expensive compared to other, similar products."
"Products by the leader in the field are justifiably a bit more expensive compared to other vendors."
"Palo Alto firewalls are very expensive."
"If you compare K2-Series' quality with its price, I think it is reasonable."
"The overall price of Palo Alto Networks K2-Series could be reduced."
"This is an expensive solution, although you will get value for the price."
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Comparison Review

it_user206346 - PeerSpot reviewer
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…
 

Top Industries

By visitors reading reviews
Computer Software Company
15%
Comms Service Provider
9%
Manufacturing Company
8%
Financial Services Firm
6%
Computer Software Company
20%
University
8%
Manufacturing Company
8%
Educational Organization
6%
Performing Arts
23%
Computer Software Company
16%
Manufacturing Company
9%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business350
Midsize Enterprise130
Large Enterprise187
By reviewers
Company SizeCount
Small Business180
Midsize Enterprise126
Large Enterprise212
By reviewers
Company SizeCount
Small Business13
Midsize Enterprise8
Large Enterprise13
 

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 ...
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...
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 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?
The graphical user interface is a little complex and difficult to manage. L1 engineers cannot work on the Palo Alto N...
 

Also Known As

No data available
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

 

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.
State of North Dakota, SEGA, Alameda County Office of Education, Temple University, VERGE, CAME
Find out what your peers are saying about Cisco Secure Firewall vs. Palo Alto Networks K2-Series and other solutions. Updated: September 2025.
868,759 professionals have used our research since 2012.