I am using PRTG 9 in my office.. I'm just wondering if there is any sensor that monitors DHCP pool's capacity? Or is there any way to monitor it?
DHCP pool monitor..
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Accepted Answer
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Here is a way to monitor DHCP statistics per scope:
Summary
Monitor DHCP statistics, using DHCP MIB and PRTG SNMP-Custom sensors.
Steps
1. Install the snmp service in your DHCP server if not installed, using add/remove windows components. Then go to Network and management tools and install the service.
2. Once the snmp service is installed, click on it, then click on the security tab. Specify the community name and hosts allowed to get snmp info.
3. Check the available OID's in the DHCP-MIB You will find all the relevant MIB values related to the DHCP scope statistics:
| dhcpScope | 1.3.6.1.4.1.311.1.3.2 |
| scopeTable | 1.3.6.1.4.1.311.1.3.2.1 |
| scopeTableEntry | 1.3.6.1.4.1.311.1.3.2.1.1 |
| subnetAdd | 1.3.6.1.4.1.311.1.3.2.1.1.1 |
| noAddInUse (Used IPs) | 1.3.6.1.4.1.311.1.3.2.1.1.2 |
| noAddFree ((Available IPs)) | 1.3.6.1.4.1.311.1.3.2.1.1.3 |
| noPendingOffers | 1.3.6.1.4.1.311.1.3.2.1.1.4 |
4. Add a PRTG SNMP Custom or SNMP Custom Advanced Sensor with the MIB value required, and make sure you modify the SNMP credentials.
5. Then You can add notifications and thresholds per sensor. Ex.: Set a notification to send an email/sms if the number of available IPs are below 10.
Edited by Mod:
Thanks for the contribution.
Note: This may only be partially supported on Windows Server 2012 as further described here. In that case you'll need to switch to a Custom Powershell script based Sensor to correctly monitor DHCP.
Last change on Nov 10, 2015 7:22:16 AM by
7 Replies
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Hi,
I'm afraid there is no dedicated sensor for this purpose and I'm also not aware of any way to monitor the same. But you may have a look at the Custom Sensors PRTG provides as it might be possible to gather the data with a custom script or WQL query.
Best regards
Created on Jul 12, 2012 7:52:02 AM by
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Hi,
am I getting you right here? You are using three different event log sensors? Or just two?
Created on Jul 13, 2012 12:27:40 PM by
Accepted Answer
Votes:
0
Here is a way to monitor DHCP statistics per scope:
Summary
Monitor DHCP statistics, using DHCP MIB and PRTG SNMP-Custom sensors.
Steps
1. Install the snmp service in your DHCP server if not installed, using add/remove windows components. Then go to Network and management tools and install the service.
2. Once the snmp service is installed, click on it, then click on the security tab. Specify the community name and hosts allowed to get snmp info.
3. Check the available OID's in the DHCP-MIB You will find all the relevant MIB values related to the DHCP scope statistics:
| dhcpScope | 1.3.6.1.4.1.311.1.3.2 |
| scopeTable | 1.3.6.1.4.1.311.1.3.2.1 |
| scopeTableEntry | 1.3.6.1.4.1.311.1.3.2.1.1 |
| subnetAdd | 1.3.6.1.4.1.311.1.3.2.1.1.1 |
| noAddInUse (Used IPs) | 1.3.6.1.4.1.311.1.3.2.1.1.2 |
| noAddFree ((Available IPs)) | 1.3.6.1.4.1.311.1.3.2.1.1.3 |
| noPendingOffers | 1.3.6.1.4.1.311.1.3.2.1.1.4 |
4. Add a PRTG SNMP Custom or SNMP Custom Advanced Sensor with the MIB value required, and make sure you modify the SNMP credentials.
5. Then You can add notifications and thresholds per sensor. Ex.: Set a notification to send an email/sms if the number of available IPs are below 10.
Edited by Mod:
Thanks for the contribution.
Note: This may only be partially supported on Windows Server 2012 as further described here. In that case you'll need to switch to a Custom Powershell script based Sensor to correctly monitor DHCP.
Last change on Nov 10, 2015 7:22:16 AM by
Votes:
0
Hello Roberto,
Thank you for your message.
Regarding the issue, if you get the same error in SNMP Tester then the problem probably comes from the request or the server.
Have you tried to restart the SNMP service on the server and checked if SNMP Tester still get the error afterwards? If not, then I invite you to do so.
Can you tell us what SNMP requests you execute with SNMP Tester as well?
Regards.
Created on Mar 25, 2021 1:02:57 PM by
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