Nagios Support Forum

We have a customer with a complete mac/linux environment and the dhcp server is running on both Routers (different pools) onsite.
Is there a check we can use to check the dhcp (status (running...), scope, leases etc.?)

Thanks

Martin

There are several on the Nagios Exchange. I'm sure one of these will meet your needs. There is also a wizard in Nagios XI for monitoring a dhcp server.

https://exchange.nagios.org/index.php?o ... hword=dhcp

Thanks Brian, I checked the command in the cli and it gives me a critical error back:

CRITICAL: No DHCPOFFERs were received.

I checked against one of the routers (edgerouter v1.9.7+hotfix.4 from ubiquity) doing the dhcp on the network

check_dhcp --serverip=ipaddress

Maybe that does not work with those devices?

Thanks a lot

Best

Martin

Try this:
Let me know if this works. Thank you!

The trick here is that depending on the configuration of your dhcp server, dhcpd is expecting requests to be "broadcast" or "unicast". The default for the check_dhcp plugin is broadcast so if your dhcp server is expecting a unicast request, you need to include the -u flag.