Community
- Command Central
- MVP Program
- Monthly Mission
- Blogs
- Groups
- Events
- Media Vault
Products
- Observability
- Network Management
- Application Management
- IT Security
- IT Service Management
- System Management
- Database Management
Content Exchange
- SolarWinds Platform
- Server & Application Monitor
- Database Performance Analyzer
- Server Configuration Monitor
- Network Performance Monitor
- Network Configuration Manager
- SQL Sentry
- Web Help Desk
Free Tools & Trials

Monitoring DHCP Server

Miron

Hi,

Is there a way to monitor a dhcp server to confirm that it is serving addresses.

Regards

Miron

Find more posts tagged with

Accepted answers

Yann

Um, how does one monitor UDP ports? The best I can guess is to create a windows script monitor that does a netstat looking for those ports. Any other suggestions?

APM has a default template named: DHCP/Bootp Server

It contains two udp port components. it might be misleading as the component type is called "DNS Monitor - UDP" although you can specify whatever UDP port to be monitored.

HTH,

Yann

All comments

Yann

Under which platform is running your DHCP server? Is it a Windows 2003 DHCP server? A Linux/Unix ISC DHCP server?

The first thing to monitor regardless of the platform would be the UDP ports 67,68 , but that does not tell if IP addresses have been served.

Miron

Hey Yann,

The DHCP Servers are generic Linux based servers at the moment.

Miron

Yann

A add-on MIB for Net-SNMP can be installed to monitor information from a ISC DHCP server:

DESCRIPTION

dhcpd-snmp is an extension for the Net-SNMP agent and the ISC DHCP server. It allows you to monitor and track the address usage of your dynamic IP address pools through SNMP.

Sources:

www.net-track.ch/.../README.php

www.oidview.com/.../DHCP-MIB.html

Once you know which OIDs you wish to poll, you can use the Universal Device Poller Utility to poll those values.

In order to have the APM information and the UnDP information for that server, you might want to create a dedicated Node Details view for the DHCP servers where you see the status of the ports, the results of the UnDP and the common statistics.

Hope that helps.

Yann

I kept browsing the big internet and found a perl script on the cacti forum which returns the number of ip addresses belonging to a specific pool by analyzing the dhcpd.leases file.

You will have to modify it to fit it in a Linux/Unix Script monitor component in APM but that should help you to start writing a script if you choose this solution.

Thread: forums.cacti.net/about14345.html

Perl Script: forums.cacti.net/download.php

Yann

aLTeReGo

The first thing to monitor regardless of the platform would be the UDP ports 67,68

Um, how does one monitor UDP ports? The best I can guess is to create a windows script monitor that does a netstat looking for those ports. Any other suggestions?

Yann

Um, how does one monitor UDP ports? The best I can guess is to create a windows script monitor that does a netstat looking for those ports. Any other suggestions?

APM has a default template named: DHCP/Bootp Server

It contains two udp port components. it might be misleading as the component type is called "DNS Monitor - UDP" although you can specify whatever UDP port to be monitored.

HTH,

Yann

FormerMember

I hope the next installment of the APM will have more "user experience" monitors. (DHCP)

michal.hrncirik

for those who would like to see support for additional DHCP server monitoring/management please vote here: http://thwack.solarwinds.com/polls/1026