What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general.

Learn more

PRTG Network Monitor

Intuitive to Use. Easy to manage.
More than 500,000 users rely on Paessler PRTG every day. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free Download

Top Tags

View all Tags

Monitor HP server via ILO?



Hi all,

I have an access to a secured network with several HP server ILO's. My goal is to monitor the system information available in the ILO in PRTG. I added the ILO's as IP addresses, but not many sensors were added:


Which port(s) should be allowed on the target machine in order to communicate with PRTG? Which sensor is best for my case (ILO)?


hewlett-packard ilo port

Created on Aug 6, 2015 3:20:42 PM

8 Replies

Accepted Answer




first you need to enable SNMP on the iLO and then use SNMP sensors.

Please take look at the sensors we have out of the box for HP ProLiant servers


but please takes look at the requirements as well, especially

This sensor type supports monitoring HP Integrated Lights-Out (iLO) as of iLO version 3. We recommend that you use iLO 4 because this version applies its own dedicated SNMP counters while iLO 3 only forwards SNMP counters from the particular operating system.

Created on Aug 7, 2015 5:56:10 AM by  Aurelio Lombardi [Paessler Support]

Last change on Jan 5, 2016 7:36:15 PM by  Erhard Mikulik [Paessler Support]



I had the same problem. I wanted to monitor HP Servers through ILO3. But as Aurelio said. You have to configure SNMP on the running OS itself to get SNMP sensors through ILO3. ILO4 comes with HP Gen 8 servers.

Created on Aug 7, 2015 9:13:20 AM



Hi, thanks for replies.

How about the ports related to the communication between PRTG and ILO that need to be allowed? Any more other than the default SNMP ports (161/162)?


Created on Aug 10, 2015 7:33:09 AM



Hi Lupo

161 should be enough. The only thing you have to configure in ILO4 is the read community.

ILO4 SNMP Config

cheers Thomas

Created on Aug 10, 2015 10:00:09 AM

Last change on Aug 10, 2015 10:31:46 AM by  Stephan Linke [Paessler Support]



Thanks, Thomas & Stephan!

Some of my servers are running ILO2 Standard. You have any experience with it? Would PRTG display any system health info at all?

Created on Aug 11, 2015 7:45:14 AM



I didn't do anything, just modified the image link :) It should work with the ILO, you'll need to try it :)

Created on Aug 11, 2015 11:01:26 AM by  Stephan Linke [Paessler Support]

Last change on Aug 11, 2015 11:01:50 AM by  Stephan Linke [Paessler Support]



Update: I have enabled SNMP on ILO2 and allowed port 161, which gave me the following result:


I have used the auto-discovery (detailed) to get these sensors, but they are not exactly what I need. I'd like to monitor the system health (ethernet interfaces, PSU's, disk drives etc.) Can you recommend some specific sensor that need to be added for ILO2? Or maybe MIB?


Created on Aug 14, 2015 7:06:54 AM



please try to manually add the sensors.

please take a look at the requirements


Created on Aug 14, 2015 9:32:31 AM by  Aurelio Lombardi [Paessler Support]

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.