Network Port Scanner

Network port scanner has become an essential part of network admins go-to tools to secure networks with port scanning and network port investigation. Ports act as communication terminals that allow communication between different network components by running various services. A network port scanner enables port scanning your entire network to determine which ports on your network are open and what services are running on them. Since ports act as a bridge between your server/desktop and the network, open ports that are left unmonitored might act as a passageway allowing malicious access into your systems. In order to avert these intrusions, port scanning the entire network using a port scanning software, has become a day-to-day network activity for many network admins.

Network Port Scanner - ManageEngine OpUtils

Key features of OpUtils’ port scanning

OpUtils’ port scanner is a code-free, intuitive port scanning tool that allows you to quickly find open ports in your network, the services running on them, and their response time using port scanning tools. Generate a list of closed, open, or listening ports by scanning a range of available IP addresses and their TCP and UDP ports with network port scanning. OpUtils' port scanning software provides insights into each system’s footprint by enabling you to access and view all the services that are running on the system’s network endpoints/ports.

  1. Scan the ports associated with an IP or a range of IPs in seconds.
  2. Schedule custom port scanning schedules, and view threshold-based, port-specific alerts.
  3. View stacked port details as well as the MAC-specific details of all connected devices.
  4. Audit network ports using port-specific reports, such as port list by operation status, and disabled port reports.
  5. Track end-to-end switch port and device connectivity.
  6. Scan ports using both IPv4 and IPv6 addresses.
  7. View port utilization metrics at a glance using the intuitive switch port widgets in the dashboard.
  8. Define multiple DNS servers of your choice.

Port Scanning - ManageEngine OpUtils

Secure your network by blocking malicious ports

Ports enable services to communicate with the applications running on your devices by exchanging data. When a port is left open, it can be easily infiltrated by malicious agents, causing unusual network traffic that indicates an infected system.

OpUtils network port scanning tool conducts continual and periodic port scanning routines and displays the details of the scanned ports, including their status. Using this list pulled by the network port scanner, you can identify and close all open ports and block ports exhibiting malicious traffic, thereby securing your network resources from unauthorized access.

How to scan ports using OpUtils

OpUtils provides you the option of directly scanning your network ports with the port scanner tool available under network tools, or you can continuously monitor your network ports using the product’s Switch Port Mapping feature.

Scanning your ports using the Port Scanner tool

Port Scanning Tools- ManageEngine OpUtils

If you wish to scan ports belonging to a range of IP addresses using the network port scanner tool, you can do so by specifying the starting IP address and ending IP address along with the range of ports you wish to scan. This shows you the ports, their response time, their status, and the services running on them.

OpUtils' Port Scanner also supports scanning ports associated with a single IP address. Specify the IP address and port range to view the details of the ports associated with that specific IP.

Managing your ports using the Switch Port Mapper

Port Scanning Software - ManageEngine OpUtils

OpUtils’ Switch Port Mapper automatically maps your switches and ports when you add your switches and displays their status. Learn more about managing ports using switches.

Switch port scanner provides you visibility into the ports connected to a particular switch, and the devices connecting to the ports. It also tells you if there is a hub connection using the network port scanner.

How does a network port scanner work?

OpUtils' port scanner probes the target ports in your network by sending an IP packet to each port. Based on the response from the ports, OpUtils' network port scanner marks ports as open and listening or closed. This provides visibility into the available ports in your network, the services running on them, and the list of open ports. The advanced port scanner can also fetch information that can be used to identify the presence of security devices such as firewalls between the source and the target—a technique known as network fingerprinting.

Network ports and services

Network ports are usually numbered from 0 to 65535, with different ports running different services, each having a service name. These services run over the port scanner network transport protocols such as TCP, UDP, DCCP, and SCTP. Ports numbered from 0 to 1023 (system ports) are known as “well-known ports” or “standard ports” and have been assigned the commonly used internet services. OpUtils’ network port scanner software allows you to scan these well-known ports along with the other network ports by specifying the port range to be scanned.

Some of the common port services scanned by OpUtils’ port scanning software are:

Port Number
Port Services
File Transfer Protocol
Domain Name System
Remote Desktop Protocol

More on network port scanner

What is port scanning?

Port scanning is the process of scanning all the ports in your network using network port scanner with a number of network scanner protocols such as SNMP scans. Port scanning is carried out by attempting to connect to the ports in your network, and their status is decided based on the response received by the network port scanning software, from them. This enables you to gain complete visibility of the status of ports in your network. You can pull out comprehensive summary of network port utilization by performing network port scanning.  

Why port scanning is important?

Port scanning your network with an effective network port scanner is crucial to secure your network from unauthorized access and monitor services running on ports. Port scanning enables you to,

  • Map ports and services running on them to network switches
  • Block unauthorized access and services running on your network ports
  • Trigger threshold based alerts based on port availability and utilization
  • Track devices currently connected to specific network ports
  • Automate logging historical operational status of ports


Getting started with OpUtils’ port scanning tool

If you are new to OpUtils' advanced IP port scanner, schedule a live demo with a product expert who will uncover all the advanced port scanning and switch port management features OpUtils has to offer.

Want to try out OpUtils' port scanner tools firsthand and see how it could work for your network? Download a 30-day free trial or visit and get started with OpUtils in less than an hour! OpUtils seamlessly integrates into your network infrastructure.