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NETSCOUT vSTREAM vs Nmap comparison

 

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
85th
Average Rating
8.0
Number of Reviews
3
Ranking in other categories
No ranking in other categories
Nmap
Ranking in Network Monitoring Software
30th
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 May 2026, in the Network Monitoring Software category, the mindshare of NETSCOUT vSTREAM is 0.4%, up from 0.3% compared to the previous year. The mindshare of Nmap is 0.9%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nmap0.9%
NETSCOUT vSTREAM0.4%
Other98.7%
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

"One of the valuable features is the packet decoding."
"vSTREAM gives us better visibility and reporting about our network infrastructure, allowing for cost-optimization."
"Sometimes it took a month to troubleshoot something that we can now do within days."
"The generation of KPI-like information that feeds to the nGeniusONE (management) server is the most valuable feature."
"vSTREAM gives us better visibility and reporting about our network infrastructure, allowing for cost-optimization."
"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."
"It is a very user-friendly product."
"It is most efficient network scanner right now."
"The best feature of Nmap is that it lets me see useful information about each endpoint in my entire network environment. For example, I can see every single connection of the network as well as each and every port."
"From a functionality standpoint, it's robust and straightforward to comprehend."
"The solution really is not comparable to other products because of its many features."
"It’s an excellent tool and allows its users a multitude of solutions to scan a network."
"It helps us secure the network infrastructure."
 

Cons

"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."
"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 like for it to have a smaller footprint of the virtual appliance and better performance."
"I would say that this is not a scalable solution."
"Room for improvement exists in filtering in the packet decode."
"Nmap will be a little difficult for beginners because of the learning curve and the CLI-based system, but once you get the hang of it, it becomes very powerful."
"The solution should increase the number of features under a free license."
"The solution's initial setup could be better."
"Since I started using Nmap, it has been completely based on the command prompt and I think it would help other users if they implemented a decent GUI as well."
"It takes a bit of time to get familiar with the solution and its options."
"There are concerns with the stability of the product, making it an area where improvements are required."
"The tool's license limits the number of scans it can perform. Improving the license model could benefit customers by allowing more scans for compliance and other purposes."
"Customization is not very user-friendly in Nmap."
 

Pricing and Cost Advice

"Licensing is quite expensive."
"It's an open-source product, and I haven't seen any premiums. Options are available for those who purchase, but for my use case, everything I need is available in the community and forums."
"Nmap is open source software, which suits us well because we are a manufacturing company and not an IT company, for example. If we were an IT company, we would probably need to pay for extra support or instead go for another software solution. But as it is, we don't have any need for high-end troubleshooting tools."
"The solution is open source so it is free."
"I am using the free version of Nmap."
"The solution is free of cost."
"The solution is free of cost, but there are specific services that we have to buy."
"Nmap is an open-source and free product."
"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%
Energy/Utilities Company
14%
Financial Services Firm
12%
Retailer
6%
Construction Company
10%
Manufacturing Company
10%
Government
9%
University
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...
 

Comparisons

 

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: April 2026.
894,738 professionals have used our research since 2012.