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NETSCOUT vSTREAM vs Nmap comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Oct 10, 2024

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

NETSCOUT vSTREAM
Ranking in Network Monitoring Software
87th
Average Rating
8.0
Number of Reviews
3
Ranking in other categories
No ranking in other categories
Nmap
Ranking in Network Monitoring Software
20th
Average Rating
8.6
Reviews Sentiment
7.5
Number of Reviews
23
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2026, in the Network Monitoring Software category, the mindshare of NETSCOUT vSTREAM is 0.5%, up from 0.3% compared to the previous year. The mindshare of Nmap is 1.1%, up from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nmap1.1%
NETSCOUT vSTREAM0.5%
Other98.4%
Network Monitoring Software
 

Featured Reviews

KL
Network Engineer at Inniti Network Solution
A user-friendly solution that is easy to install and improves visibility
I would like to see improvements made to the user guide. From my personal experience, it is helpful to see a list of steps describing what to do next in different situations. An example is what to do and what to back up in the case of certain types of failure. There are also cases where a customer can't understand specific features. Enhancements to the user guide would be helpful for this. More features for network fragmentation would be helpful.
Sai Aditya Panda - PeerSpot reviewer
Student at a consultancy with 11-50 employees
Penetration testing has become efficient as I identify open ports and security risks with confidence
Nmap could potentially become a GUI and provide automatic reports with one-click downloads. For example, the report could show all the open ports for an IP address with a professionally formatted report. This is a far-fetched suggestion and not really required, but it could make the work a little better. On a scale of one to ten, I give Nmap a solid nine. I mean, how can you fix something that is not broken? Nmap is already the best, and I do not think there are any other features that can be added. Its job is reconnaissance, so I do not think there is more to add to it. However, if I get any ideas, I will let them know about this.

Quotes from Members

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

Pros

"Sometimes it took a month to troubleshoot something that we can now do within days."
"vSTREAM gives us better visibility and reporting about our network infrastructure, allowing for cost-optimization."
"The generation of KPI-like information that feeds to the nGeniusONE (management) server is the most valuable feature."
"One of the valuable features is the packet decoding."
"The solution detects the operating systems, which makes testing the software much easier before making the payload."
"It helps us secure the network infrastructure."
"The scanning procedure includes UDP ports which sets it apart from competitors."
"The real-time reporting feature of Nmap is particularly valuable. It generates detailed reports on the source and destination IP addresses, the protocols used, and the types of traffic."
"Nmap is mostly helpful during compliance checks. We run the scanner to see how many devices are on our network and find vulnerabilities in those that aren't compliant. We also use it monthly to scan our network and identify devices that aren't connected properly. This helps us detect any issues related to the operating systems of these devices."
"The tool's most valuable feature is its scripts. These scripts prove beneficial when security features may obscure or block connections. Nmap helps identify vulnerabilities across different systems, including web servers and various server types."
"This was my first project, and Nmap was the best tool that I have used to date, and I recommend it to everyone."
"The solution really is not comparable to other products because of its many features."
 

Cons

"I would like for it to have a smaller footprint of the virtual appliance and better performance."
"I would like to see improvements made to the user guide."
"I would say that this is not a scalable solution."
"The stability is okay, but sometimes we see that the memory on the server is not 100 percent correct and we need to stop and start the software to have it reallocated again."
"Room for improvement exists in filtering in the packet decode."
"The solution's initial setup could be better."
"The solution should increase the number of features under a free license."
"There is room for improvement in the design, the GUI. It looks a bit odd. Maybe Nmap should improve it or add more widgets to make it more attractive, but the basic functionality is good and provides what we need."
"The solution is not that easy for a beginner to learn."
"It takes a bit of time to get familiar with the solution and its options."
"Nmap needs to improve its scanning speed."
"There are concerns with the stability of the product, making it an area where improvements are required."
"The challenge often lies in finding suitable courses and professional resources."
 

Pricing and Cost Advice

"Licensing is quite expensive."
"The solution is open source so it is free."
"Nmap is an open-source and free product."
"The solution is free of cost, but there are specific services that we have to buy."
"The solution is free of cost."
"I am using the free version of Nmap."
"I am using the standard free version of Nmap."
"The product's pricing is fine. The licensing options for Nmap include perpetual licenses and volume-based licenses. For perpetual licenses, once you purchase it, there's no need to invest in renewals. And for volume-based licenses, enterprise companies can use it multiple times based on the number of users or devices they need to scan. It's a pay-as-you-go model, similar to how you pay for what you use."
"Nmap is an open-source product. You don't need a license to install it."
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Top Industries

By visitors reading reviews
Construction Company
18%
Financial Services Firm
10%
Comms Service Provider
9%
Energy/Utilities Company
7%
Outsourcing Company
11%
Construction Company
9%
Manufacturing Company
9%
Government
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise1
Large Enterprise14
 

Questions from the Community

Ask a question
Earn 20 points
What is your primary use case for Nmap?
My main use case for Nmap is reconnaissance, so identifying open ports or running services and ultimately finding the security risks or vulnerabilities in a system. OS detection is the most importa...
What advice do you have for others considering Nmap?
I think I should be learning more about the commands and how Nmap works so that it will be better for my career. I will do that. There is nothing else to add to it, except a huge thank you to the p...
What needs improvement with Nmap?
Nmap could potentially become a GUI and provide automatic reports with one-click downloads. For example, the report could show all the open ports for an IP address with a professionally formatted r...
 

Also Known As

vSTREAM
No data available
 

Overview

 

Sample Customers

Metropolitan Police Agency, Banpara, PropertyRoom.com
Lockheed Martin, Eastern Bank Boston, Perspecta, Harris Corporation, Discovery Communication
Find out what your peers are saying about NETSCOUT vSTREAM vs. Nmap and other solutions. Updated: September 2026.
913,806 professionals have used our research since 2012.