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Nmap vs vRealize Network Insight 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

Nmap
Ranking in Network Monitoring Software
9th
Average Rating
8.6
Reviews Sentiment
7.7
Number of Reviews
22
Ranking in other categories
No ranking in other categories
vRealize Network Insight
Ranking in Network Monitoring Software
34th
Average Rating
8.6
Reviews Sentiment
7.6
Number of Reviews
46
Ranking in other categories
IT Infrastructure Monitoring (39th)
 

Mindshare comparison

As of June 2025, in the Network Monitoring Software category, the mindshare of Nmap is 0.5%, down from 0.6% compared to the previous year. The mindshare of vRealize Network Insight is 0.6%, down from 1.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software
 

Featured Reviews

AntoSebastin - PeerSpot reviewer
Scans the network and identifies vulnerabilities on each machine
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 vulnerability scanning. It allows us to scan a specific range of IP addresses and discover devices within that range. This makes it easy to identify devices and view their details. Port scanning is crucial for network management tasks. It helps us identify vulnerabilities by finding open ports that may be unused or misconfigured. This tool makes it easy to detect such issues. The OS detection feature is great. Unlike other tools, Nmap provides accurate information about asset vulnerabilities, helping us easily detect and address them. Using Nmap provides value to the company, especially during compliance audits. It helps generate reports on assets, updates on workstations, and insights into network activities and potential attacks. Additionally, Nmap detects vulnerabilities and provides port details, allowing us to close unused ports on the client machines.
NiteshKumar1 - PeerSpot reviewer
The tool's configuration is easy and artifacts are easily accessible through professional services and the web
The product is highly regarded, and many customers have been using it along with other VMware products like vSphere and VMware vCloud Usage Insight. However, recently, there's been a trend among customers, especially those using VMware for a considerable period, to explore the potential of migrating to the public cloud. The common concern among these customers is how the VMware products will perform in the public cloud environment. Migrating instances from VMware to different platforms is not easy, especially when dealing with many instances across multiple customers. Customers are keen to maintain the functionality of their existing VMware products but prefer to run them on the public cloud instead of on-premise servers. Our clients for vRealize Network Insight are enterprise businesses. I rate it a nine out of ten.

Quotes from Members

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

Pros

"Nmap has a powerful command line tool and a set of diagnostic features."
"It is a very user-friendly product."
"The most important function, according to me, is the capability to use some arguments in the scanning. The solution's capability to go figure and do a deep dive, discovering information on specific aspects."
"It helps us secure the network infrastructure."
"From a functionality standpoint, it's robust and straightforward to comprehend."
"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."
"Nmap's performance is great, and I've never noticed any issues in this respect. It really doesn't put a heavy load on the machine when using it."
"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."
"The gradual way the Network Insight shows you all the relevant information about your networks. It's pretty good. You can really dig deep deep inside and see where the problem is, where it comes from, what you have inside, how did you configure it. Also, it has alerts so you can have pretty much quite a big overview about your network. This is really something good."
"It helps a lot because, until now, we didn't have the tools to figure out the micro level, VM-to-VM kind of traffic; that was not in the current environment. We could not figure out VM-to-VM communication from the other tools. This is the tool which gives us end-to-end transparency."
"It allows us to see how the network devices function as well as to see network glitches or fluctuations or dropping of packets."
"The most valuable feature for us is that insight into what our network is really doing - it's a fairly complex network. Not having to go through thousands of lines of network configuration to find firewall ports that were open or closed, for various ports, was very valuable. It went out and found everything we need very quickly."
"The most valuable feature is the visualization. It's really handy to be able to classify network objects as with applications and see the interaction between them."
"The initial was straightforward. You can have it up and running in one hour."
"The most valuable features are the monitoring and tracking. It's also intuitive and user-friendly. The screen looks exactly the same as the other appliances for VMware, so it's easy to navigate."
"The most valuable feture is NetFlow to help us understand how VMs communicate with each other over ports that are known and ports that are also unknown to us. Our company is a security company, so it's very important for us to know exactly which VMs are doing what at all times."
 

Cons

"There are concerns with the stability of the product, making it an area where improvements are required."
"Customization is not very user-friendly in Nmap."
"One of the drawbacks of the standard Nmap utility is that it does not come with a graphical user interface, unlike a number of other open-source alternatives such as Zenmap."
"The solution is not that easy for a beginner to learn."
"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."
"Nmap major operates through the CLI; there's no GUI component, and that's where the challenge is."
"The price is high and could be cheaper."
"If it were more application-aware, more descriptive; if it were able to determine the application that is actually doing the communication, that would be easier. More application information: which user or account it's accessing, is it accessing this application, doing these calls, if it is accessing a script, what script is it accessing. Things like that would provide deeper analytics so I can track what's going on. It would not just be, "These people shouldn't be talking," but who is actually doing these calls."
"The only real improvement they can make is to add more third-party vendors into the environment, mostly switch manufacturers, because it's really limited to Cisco equipment and there are a lot of companies out there other than Cisco."
"The IT infrastructure industry is expected to evolve towards a hybrid cloud model in the next five to ten years. In this model, most of the customer's resources reside on-premise within a private cloud setup, such as VMware. Another segment operates within public cloud environments like Azure and AWS, and a portion remains in traditional data centers. There should be seamless interoperability between public and private clouds. AWS and VMware need to work together to make it possible. Whether users interact with on-premise infrastructure or configure resources in the public cloud, the user experience must be seamless."
"The virtual appliance has rebooted."
"The product is slightly complex use, while still being user-friendly. It could use more training modules, as it is not a straightforward product."
"After you use it for a little while you become accustomed to it but the layout doesn't feel very intuitive. You have to dig around and find the exact place where you can find the information, where you can actually see your east-west traffic, etc. I would like them to bring that information more to the forefront, instead of having to find it."
"It just needs to be more reliable and more accurate. At some point, there are some things where it does not match properly."
"While it's not exactly a feature, what normally happens when we are trying to look at the VM flow portion is - although Network Insight does have options to integrate a few physical switches into it - we can't really get an end-to-end flow of the network. We might be using a few switches that are not supported by Network Insight. That is where they can improve, in the support for more physical switches and network devices."
 

Pricing and Cost Advice

"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."
"It's an open-source solution. Commerically, only the support service is available."
"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 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 free of cost."
"Nmap is an open-source product. You don't need a license to install it."
"I am using the free version of Nmap."
"I am using the standard free version of Nmap."
"It's an expensive product because we have a lot of nodes."
"It reduces costs. It takes something that may be challenging and makes it more usable and visual by being able to bring in tools, seeing what their impact is, such as microsegmentation and application rationalization, and seeing it quickly."
"The solution has reduced the time that we spend on other products. For example, with NSX, we were able to quickly find things that we would normally spend days trying to figure out."
"They should include the product in NSX because it's important to have it for deployment."
"We have spent less time investigating network flows, so it is absolutely cost-effective."
"The solution has helped us to reduce time, increase performance, reduce costs, and even easily manage networks. We are probably seeing 10 to 20 percent labor savings because we are able to be very specific and focused on what we want to do. It ends up saving the customer money and makes us be more efficient on our cost deliveries."
"It has brought more money into our company."
"Cost always has room for improvement, you could always make it cheaper. But I think it's a good value for what you pay for it."
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Top Industries

By visitors reading reviews
Retailer
13%
Computer Software Company
11%
Manufacturing Company
9%
Educational Organization
8%
Computer Software Company
15%
Financial Services Firm
15%
Manufacturing Company
9%
Healthcare Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Nmap?
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 sca...
What is your primary use case for Nmap?
Nmap is used for network scanning to map the network, identify devices, and assess their status. It helps determine open ports and services running on a particular endpoint or server within an ente...
What do you like most about vRealize Network Insight?
The tool's ease of configuration and use and the availability of information and artifacts through professional services and the web are key factors that customers find valuable.
What is your experience regarding pricing and costs for vRealize Network Insight?
Broadcom is known for increasing product prices, making them expensive compared to what people used to pay. I liken the subscription model to not truly owning what you pay for.
What needs improvement with vRealize Network Insight?
Right now, I do not see a specific area for improvement. My main concern is understanding the intentions of Broadcom, which has acquired VMware. Broadcom should improve by going back to what was wo...
 

Also Known As

No data available
Arkin
 

Overview

 

Sample Customers

Lockheed Martin, Eastern Bank Boston, Perspecta, Harris Corporation, Discovery Communication
NTTi3, VCIX-NV, VMware Networking and Security Business Unit, Illumio, CompuNet
Find out what your peers are saying about Nmap vs. vRealize Network Insight and other solutions. Updated: June 2025.
856,873 professionals have used our research since 2012.