A freeware, full-featured SNMP Manager application built using PowerSNMP for.NET, PowerTCP Sockets for.NET, and PowerTCP Mail for.NET.Query and monitor the value of SNMP Agent variables, monitor traps, ping network hosts, and configure alerts with optional email notifications. Reports are also included in the free SNMP server monitoring software. Among other things, they feature clear and comprehensible charts. One of the times these reports can come in handy is when your hardware is under heavy strain and you need to convince your higher-ups to provide you with the funds for an upgrade. We've Reviewed the Top SNMP Monitoring Tools & Software for Network/Device Management and Monitoring Devices that are SNMP Enabled - This includes Servers, Routers, Layer 3 Switches, Firewalls and other Devices within your Network Free Downloads!! Fortunately, tools like SNMP monitoring ease this pressure and help to increase productivity. SNMP is an acronym for Simple Network Monitoring Protocol, and as the name suggests, it is an Internet standard for monitoring the hardware and software of all SNMP-enabled devices.
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If you're a system or network administrator, you need monitoring tools. You have to know, at all times, the status of your systems so you can optimize performance and head off potential problems. Thankfully, plenty of tools are available to help you stay in the know about your systems. Some of these products are costly and do quite a lot. But others are free and do just as much — and in some cases, more. That's right. More.
I want to introduce you to five system and/or network monitors that do more than you'd think they could do. From this list of products you will certainly find one or more tools that will serve your needs.
Note: This list is also available as a photo gallery.
1: Observium
Observium (Figure A) is 'an autodiscovering PHP/MySQL/SNMP-based network monitoring [tool].' It focuses on Linux, UNIX, Cisco, Juniper, Brocade, Foundry, HP, and more. With Observium, you'll find detailed graphs and an incredibly easy-to-use interface. It can monitor a huge number of processes and systems. The only downside is a lack of auto alerts. But to make up for that, you can set Observium up alongside a tool like Nagios for up/down alerts.Figure A
Observium
2: Ganglia
Ganglia (Figure B) is a 'scalable distributed monitoring system' focused on clusters and grids. It gives you a quick and easy-to-read overview of your entire clustered system. This monitor has been ported to many platforms and is used on thousands of clusters around the world. Anyone who employs server clusters should have Ganglia monitoring that system. Ganglia can scale to handle clusters with up to 2,000 nodes.Figure B
Ganglia
3: Spiceworks
Spiceworks (Figure C) is becoming one of the industry standard free network/system monitoring tools. Although you have to put up with some ads, the features and Web-based interface can't be beat. Spiceworks monitors (and autodiscovers) your systems, alerts you if something is down, and offers outstanding topographical tools. It also allows you to get social with fellow IT pros via the Spiceworks community, which is built right in.Figure C
Spiceworks
4: Nagios
Nagios (Figure D) is considered by many to be the king of open source network monitoring systems. Although not the easiest tool to set up and configure (you have to manually edit configuration files), Nagios is incredibly powerful. And even though the idea of manual configuration might turn some off, that setup actually makes Nagios one of the most flexible network monitors around. In the end, the vast number of features Nagios offers is simply unmatched. You can even set up email, SMS, and printed paper alerts!Figure D
Nagios
5: Zabbix
Zabbix (Figure E) is as powerful as any other network monitoring tool, and it also offers user-defined views, zooming, and mapping on its Web-based console. Zabbix offers agent-less monitoring, collects nearly ANY kind of data you want to monitor, does availability and SLA reporting, and can monitor up to 10,000 devices. You can even get commercial support for this outstanding open source product. One unique Zabbix feature is the option to set audible alerts. Should something go down, have Zabbix play a sound file (say, a Star Trek red alert klaxon?).Figure E
Zabbix
Your choice
There are many tools available for the monitoring of systems and networks. The tool you choose could determine your ability to handle your job efficiently. Make sure you take a look at one or more of the applications above. With some unique features on offer, these tools stand out above the rest.
Do you use any of these monitoring tools? What other top contenders would you add to the list?
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SNMP stands for Simple Network Management Protocol and consists of three key components: managed devices, agents, and network-management systems (NMSs). The protocol is a set of standards for communication with devices in a TCP/IP network. SNMP monitoring is useful for anyone who is responsible for servers and network devices such as hosts, routers, hubs and switches. It lets you keep an eye on network and bandwidth usage, and track important issues such as uptime and traffic levels.
Watch how
PRTG uses SNMP
Watch this short PRTG introduction and learn all about the basics of SNMP. What is it used for and what are the advantages?
iWhat is a sensor?
In PRTG, “Sensors” are the basic monitoring elements. One sensor usually monitors one measured value in your network, e.g. the traffic of a switch port, the CPU load of a server, the free space of a disk drive. On average you need about 5-10 sensors per device or one sensor per switch port.
SNMP sensors
PRTG comes with several preconfigured SNMP sensors. Among these is a series of sensors developed especially for device manufacturers such as Cisco, HP, Dell, and Synology. The SNMP Custom Sensor also lets you monitor a number of other devices from a variety of different manufacturers via SNMP.
Below you will find a selection of our 'best-of' sensors. Whether servers, routers, or switches: with PRTG, you get a professional SNMP network monitoring software and a comprehensive view of your network.
Built-in alarm features
Our SNMP server monitoring software is equipped with a built-in alarm feature. You're free to set the threshold values and alert method (email, SMS, or a free push notification to your smartphone) any way you please. PRTG includes a customizable notification system which you can define according to your own personal needs.
Auto Discovery
The PRTG Auto Discovery facilitates your search. With this feature, all of the available devices in your network which are switched on for SNMP monitoring are checked, and suitable sensors are created, automatically. Your initial monitoring will thus be set up in the blink of an eye! You can then get down to its fine-tuning.
Reports
Reports are also included in the free SNMP server monitoring software. Among other things, they feature clear and comprehensible charts. One of the times these reports can come in handy is when your hardware is under heavy strain and you need to convince your higher-ups to provide you with the funds for an upgrade.
SNMP versions (SNMP V1, V2c, or V3) can vary from device to device. Should you encounter issues while setting up your SNMP tools for Windows, the Paessler Support Team will be happy to offer you their expert advice and assistance. In general, our support team answers inquiries within 24 hours. With SNMP tools like the SNMP Tester, you can detect and debug problems. Simply send your log files to our support team for analysis.
All in one, no extra cost: that is our philosophy. With PRTG, the full range of features is included. There are no hidden fees or additional upgrades to pay for. This is also true if you wish to use your monitoring for SNMP traps. Using PRTG as a trap receiver is simple! For we've created an appropriate sensor - which is also available in the free version - to help you get started.
SNMP traps: With SNMP monitoring, monitoring software usually sends small data packets to target devices in order to request various information from them. This in turn triggers response packets from the monitored devices for SNMP manager. The upside of SNMP traps is that devices automatically send messages to the SNMP server monitoring software in the event of crucial incidents, without first being requested to do so.
Your SNMP monitor at a glance
– even on the go
PRTG can be started within minutes and it's compatible with many mobile devices.
PRTG lets you monitor your network via SNMP. NetFlow and Packet Sniffing are used for the in-depth monitoring of data traffic, while SNMP provides for a comprehensive overview of the performance of your network. SNMP boasts the following five advantages.
Super reliability
In general, network monitoring with SNMP is extremely reliable. PRTG offers many sensors adapted to the various versions (SNMP V1, SNMP V2c, and SNMP V3) and different manufacturers.
Minimal bandwidth usage
SNMP monitoring requires a minimum amount of bandwidth. As an administrator, you therefore get the overview you need and the control that goes with it, without putting too much strain on your network.
Low CPU load
Like the bandwidth, the processor is barely affected. The CPU load of SNMP V1 and V2c is nearly imperceptible, even with broader monitoring including several thousand sensors.
Compatibility
Almost all of the major device manufacturers (including Cisco, Dell, and HP) offer the Simple Network Management Protocol. For many devices, it is the only protocol used to read values.
Platform-independence
SNMP is a platform-independent standard. Activate the SNMP service in your Windows computer or configure the SNMP daemon in Linux. SNMP is also available for macOS. You can therefore incorporate all your computers into the holistic SNMP management software PRTG.
“We can all work with greater peace of mind knowing that our systems are constantly being monitored.”
Markus Puke, Network Administrator, Schüchtermann Klinik, Germany
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We work hard on making our software as powerful and easy-to-use
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Our recommendations:
The Top-5 PRTG sensors for your SNMP monitoring
Use the following five SNMP sensors to monitor the most important features on each of your devices.
More sensors can be found in our PRTG sensor list. There are dozens of SNMP sensors, and over 200 in all!
- SNMP CPU Load Sensor: This sensor shows you the extent to which your processors are being utilized. The load is displayed as a percentage in a typical PRTG tachometer, in PRTG called 'gauges'.
- SNMP Disk Free Sensor: This sensor shows you how much hard disk space is available. This value is displayed as a percentage and in bytes.
- SNMP Memory Sensor: This sensor shows you how much memory is left. This sensor allows you to make plans to upgrade your hardware, if necessary.
- SNMP Traffic Sensor: With this sensor, you get a constant overview of the amount of data traffic flowing through a device's ports. Should the load begin to increase at a critical rate, you'll be notified quickly.
- SNMP Hardware Status Sensor: This sensor allows you to keep a constant eye on your hardware, whether devices from Cisco, Dell or IBM. You will see if your devices are running and be notified in the event of a crash.
3 steps to SNMP monitoring –
This is how easy you configure PRTG!
Check to make sure your devices support SNMP. This should be the case at your company, for SNMP has been a standard for several years for manufacturers such as Cisco, Juniper, HP, and Dell. In this step, PRTG also verifies which SNMP version is supported and discovers automatically all available devices in your network.
Turn on SNMP in the device. There is often a management program or configuration page for this purpose. For many devices, the default SNMP setting is “off.” If there is a firewall between the devices and the PRTG probe, then configure the firewall accordingly. Activate SNMP port 161 and open all outgoing ports greater than 1023 for SNMP on the PRTG side of the firewall.
Create appropriate sensors for the devices in PRTG. The sensor settings must be compatible with the device’s version of SNMP so the data can be read.
Need more info?
See our PRTG Manual for detailed configuration instructions.
- SNMP V1: The first SNMP version was defined in 1988. It is still in widespread use today, mainly because it is much easier to use than the other versions. However, this version does not come with encryption. It is therefore recommended that SNMP V1 only be used in private LANs which are not connected to the Internet.
- SNMP V2c: When people speak of version 2, they usually mean SNMP V2c. This version, however, also lacks encryption. One feature of SNMP V2c is that it supports 64-bit counters, whereas SNMP V1 uses only 32-bit.
- SNMP V3: The third and most current version of SNMP also supports encryption and significantly increases the security of SNMP monitoring. Nevertheless, setting up SNMP V3 is complex and elaborate in comparison to its predecessors. To date, it is still not very widespread.
Due to the large number of devices (routers, switches, servers, etc.), several manufacturers were forced to define a common standard for monitoring the functionality of devices and networks.
Support: Problems with SNMP Monitoring?
Put the PRTG Tester to work!
Having an issue with your SNMP monitoring? A sensor reports an error - but you can't see why? Use our SNMP Tester to get to the root of the problem. With this tool, you can make SNMP inquiries and obtain detailed log files. If you cannot find the bug, simply send the log files to our support team. In this way, we can help to solve your problem.
PRTG simplifies your day!
Our SNMP server monitoring software really helps you doing your job and promptly notifies you if something is wrong.
PRTG lets you concentrate on your day-to-day tasks with total peace of mind.
PRTG saves time
PRTG is an easy and intuitive SNMP server monitor. You get one central monitoring tool with which to monitor your network via SNMP and SNMP traps. The dashboard provides a quick overview at all times - whether on your desktop or as an app.
Snmp Monitoring Software Free Software
PRTG saves worry
Snmp Monitoring Software Free Trial
Setting up PRTG is quick and easy. Dozens of SNMP sensors are available as well as user-defined sensors compatible with the various SNMP versions and adapted to specific manufacturers.
PRTG saves money
80 % of our customers report substantial savings in the area of network management. And license costs pay for themselves in an average of only 3 1/2 months.
200,000 system administrators worldwide
trust our software. Every day.
We have compiled some reviews for you.
Unlimited version of PRTG for 30 days. After 30 days, PRTG reverts to a free version.
Or, you can upgrade to a paid license anytime.
Over 95% of our customers recommend PRTG
Paessler AG worldwide trialled PRTG in over 600 IT departments.
The aim was to tune the network monitoring software closer to the needs of the administrators.
The result of the survey: over 95% of the participants would recommend PRTG - or already had.
'Hey Luciano, what would you tell administrators looking to set up SNMP monitoring with PRTG?'
'With PRTG, you not only get the many standard sensors which exist for SNMP monitoring, but also the ability to monitor devices even without having a native sensor for them. You can thus monitor practically any SNMP-compatible device! First of all, obtain the relevant MIB file containing a definition of all available OIDs from the manufacturer of your hardware. Then use the MIB importer to make the MIBs available to PRTG, and create an SNMP library sensor. Finally, select the properties of the target device you’d like to monitor, and within no time at all you’ll have the data you need!'
Luciano Lingnau works in PAESSLER AG's technical support department. Find out more on this topic by consulting his answer in our knowledge base.
iNetFlow is a protocol for collecting, aggregating and recording traffic flow data in a network. NetFlow data provide a more granular view of how bandwidth and network traffic are being used than other monitoring solutions, such as SNMP. NetFlow was developed by Cisco and is embedded in Cisco’s IOS software on the company’s routers and switches and has been supported on almost all Cisco devices since the 11.1 train of Cisco IOS Software. Read more ...
WMI
Windows Management Instrumentation (WMI) is a standard developed by Microsoft. Depending on the size of your network, WMI can lead to load problems. Here too, PRTG comes to the rescue with its specific sensors. Find out more on the page on WMI Monitoring.
NetFlow
Netflow and IPFIX are protocols which are used mainly in Cisco devices. But other protocols, such as sFlow and jFlow, are also suitable for bandwidth monitoring. Find out more on our Netflow Monitoring topic page.
Packet Sniffing
Cisco Snmp Monitoring Software Free
Monitoring via packet sniffing provides you with detailed insight into your data packets. This is convenient, namely, when you'd like to take a closer look at why data traffic problems sometimes occur in your network. Find out more on the page on Packet Sniffing Monitoring.
Snmp Monitoring Tools
You want to know more about other
network-related monitoring topics?
PRTG as network traffic analyzer
PRTG the network activity monitor
PRTG as
NTP monitor
DHCP monitoring with PRTG
Expand your know-how: our SNMP email course
You're interested in learning more about SNMP – but little by little instead of having to digest an entire white paper at once? Then sign up here for our free, four-part email course. This course is a great way to develop your expertise on network monitoring via SNMP.
PAESSLER AG –
German quality
engineering
- Unlimited version of PRTG for 30 days
- After 30 days, PRTG reverts to a free version
- Or, you can upgrade to a paid license anytime
Snmp Monitoring software, free download
Made in Germany: The PRTG Network Monitoring Tool is the fruit of an engaged team. The company was founded by Dirk Paessler. The Paessler AG headquarters are located in the city of Nuremberg, in the heart of Germany. We combine typical German virtues such as high quality standards, industriousness, and commitment with international, cosmopolitan flair. Read more about our firm here. By the way: We are regularly looking for new recruits.
Best Snmp Monitoring Software Free
Case Studies: Airports, utility companies, banks, colleges, hospitals: PRTG is present in every industry. For each of our customers, business and organizational processes depend on the proper functioning of the network infrastructure. The PRTG customer satisfaction is close to 100%. Read in our case studies how our customers use PRTG.
Product tests: It goes without saying that we are convinced by the quality of PRTG. But what about the others? PRTG has always performed extremely well in tests. PRTG user “LanLine” sums it up best: “PRTG was already good several years ago, and has gotten better from version to version ever since.” Such has been our steadfast and sincere goal. Read more about monitoring software product tests and comparisons here.
Support: Our support team works hard every day to help customers solve their monitoring problems. Our goal is to resolve all inquiries within 24 hours (on business days). We've drafted a comprehensive manual and built up an extensive knowledge base featuring videos, webinars, and FAQs. All support, of course, is also included!
Getting started is easy: The trial version is free, which means you can try our monitoring tool risk-free. To switch to another version of PRTG, simply search for an appropriate license. You can upgrade any time you like.
PRTG | Network Monitoring Software - Version 19.3.52.3502 (October 1st, 2019) |
Hosting | Download for Windows and hosted version available |
Languages | English, German, Spanish, French, Portuguese, Dutch, Russian, Japanese, and Simplified Chinese |
Pricing | Up to 100 sensors for free (Price List) |
Unified Monitoring | Network devices, bandwidth, servers, applications, virtual environments, remote systems, IoT, and more |
Supported Vendors & Applications |