Network mapping is the process of analyzing a network from top to bottom. It’s important in a network administration environment, but you often don’t think about it until problems are happening. In this article, I want to go over some of the concept of network mapping software, as well as introduce you to a few free network map applications for your personal use.
Network mapping software is used by different kinds of companies. Some use it to create a map of their internal network while others use it to map the internet and the giant networks like the google, yahoo or facebook. Network mapping is an important tool that helps companies understand if they can even operate in certain countries or under certain laws. It also helps them to create a better market and brand strategy by comparing the local competitors.
Network Performance Monitor – Free Trial
My top pick is SolarWinds Network Performance Monitor (NPM). NPM is extremely useful for both mapping networks and determining how your network is performing. It includes a feature called NetPath, which maps your network and then provides you with information on network performance, traffic, and configuration along the entire service delivery path. You can also see performance metrics with hop-by-hop data between your central servers and your satellite offices.
NPM also features a number of network visualization graphs and charts. Insights from NPM network mapping features can easily be viewed alongside your other performance tools to provide troubleshooting assistance of your entire network. Try out a free trial of NPM for 30 days.
Network Topology Mapper – Free Trial
SolarWinds Network Topology Mapper (NTM) is focused on network mapping. Unlike NPM, the tool doesn’t include network performance measurement capabilities. However, NTM shines in its ability to automatically plot your network to build multiple different kinds of network maps from a single scan.
The automatic scanning function is useful if you have an already established network needing to be properly mapped. It automatically detects any changes in your network topology and updates the maps accordingly. You can choose whether you want it to determine your network using SNMP, ICMP, WMI, CDP, or another method of discovery. You can also try NTM free for up to 14 days.
Paessler PRTG Network Monitor
Paessler PRTG Network Monitor is a well-known software with monitoring and performance tools as well as reporting features and dashboards. It lets you create maps to show you devices and connections, as well as live status information for your network, so you can detect problems in one glance and troubleshoot effectively using maps as a primary source of information. You can customize your map using HTML, and you can share the map with whoever you want (company-only or external). While the maps are extremely useful, you must create them manually using the drag-and-drop map editor, which can be time-consuming.
Nmap
Nmap (Network Mapper) is a free and open source network mapping software for network discovery. Apart from network mapping, it also provides a host of other network management services. Nmap uses raw IP packets to determine the hosts available on a network. Nmap collects data regarding the services offered by the host devices. The IP packets sent by Nmap can also determine the type of OS versions being used by the host devices. Nmap can run on all operating systems. It provides official binary packages for Linux, Windows, and Mac OS X.
Features:
- Supports advanced techniques for mapping out networks filled with IP filters, firewalls, routers, and other obstacles.
- Port scanning mechanisms, version detection, and OS detection
- Scan capacity for huge networks with thousands of systems
- Supports most of the operating systems, including Linux, Windows, OpenBSD, FreeBSD, Solaris, Mac OS X, IRIX, Sun OS, HP-UX, NetBSD, Amiga, etc
- Easy to use graphical (GUI)
- Comprehensive and up-to-date guidelines to use the software in multiple languages
- Support through a vibrant community of developers and users
Cacti
Cacti is a free and open source network mapping software that provides graphical representations of the network. With easy to use interface, Cacti is suitable for both smaller networks such as LAN based installations and large network with thousands of computers. It is free software with a GPL license. It provides support through its community forum. The project started in 2001, and currently, it runs on version 1.2.0.
Features:
- Unlimited number of Graphs can be drawn
- Support for all of RRDTool’s graph item
- Common network maps and graphs can be grouped together
- Built-in SNMP (Simple Network Management Protocol)support
- User-based administration control which allows admins to control access to the software
- Preview display of the graph
- In-built templates for network graphs
- Automatic network discovery
- Cross-platform operating system support
Nagios XI
Nagios XI is an open source network mapping software application. It is a high efficiency and comprehensive tool for IT infrastructure and networking monitoring. It provides a central view of everything happening in your networks. With a smart GUI, it provides options to customize the application’s layout, design, and user preferences. With Nagios XI users can view network incidents and resolve them before they escalate further.
Features:
- Nagios Core 4 monitoring engine to provide scalable monitoring to users
- The dashboard provides a customizable overview of services, hosts, and network devices.
- Administrators can view network issues and troubleshoot them proactively
- Bulk Host Import,
- Auto-discovery of networks
- Multiuser capacity and extendable architecture with integrations
- Save your most recent configurations
- Easily set up and manage user accounts
- Nagios is a secure software
- Can work with CentOS or Redhat Enterprise Linux (RHEL), Ubuntu or Debian
OpenNMS
OpenNMS is an open source network mapping software application. OpenNMS is a highly integrated, open source software designed for building network monitoring solutions. OpenNMS comes in two different distributions: Meridian, which is more suitable for enterprises and Horizon for monitoring new technologies and IT ecosystems. Both are completely open source and are licensed under AGPLv3. While Horizon is free to download, Meridian is available under a subscription model.
Features:
- Device and network Auto Discovery
- Location-Based Mapping
- Supports Layer 2 and Layer 3 Network Topologies
- Matrix type display on the dashboard
- Sends alerts and notifications in case of any network glitch
- Uses SNMP protocol for monitoring networks
- Detects interface outages, the response time of servers, etc
- Allows IT admins to do Root cause and impact analysis
- Users can monitor the performance of the devices using OpenNMS
- Data collection through various network protocols
Lantopolog
Lantopolog is a free and open source network mapping software tool that lets you monitor the network, topology discovery, and visualization. The current version of LanTopoLog is 2.44. It runs on Windows Vista/2008/7/8/2012/10/2016/2019. It is licensed under Shareware.
Features:
- Automatic network discovery based on SNMP
- Provides detailed and searchable physical network topology map
- Maps the physical port connections
- Detecting new devices in the network and notifying of this event
- Add custom data to the map
- Sends notifications when the Spanning Tree Topology is changed
- Ping monitoring tool
- Generating alarms when there are failures in the network
- Email alerts notifying
- Web browser-based access from anywhere in the network
- Network traffic monitoring
- Monitoring invalid and dropped packets
- Notify the administrator when traffic thresholds are exceeded
- Easy-to-use interface
- Safe to use and does not write anything to OS
Conclusion:
There’s a lot of network mapping software out there, but not all of them are good. While your best option might be to hire an intern, getting a list of the best free network mapping software will give you some direction. And if you’re a student and don’t have money for interns, free network mapping software could be even better for you.