CRITICAL: No DHCPOFFERs were received.

[tmcdonald]

Lo siento, pero debemos hablar en inglés. Yo he enviado un PM.
I am sorry, but we must speak in English. I have sent a PM.

I am seeing this same behavior. When I run

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./check_dhcp -v

I do not receive any results. I will speak with the plugin developers about this.

[eloyd]

Pero, quien a pensar de los niños?

[tmcdonald]

I'll worry about the users, someone else can take care of the kids.

[sblain]

Hi, ok i'll speak in english, but it's not well

Any suggest for my problem?? nagios doesn't check the dhcp server on localhost ....i've done all and don't get any result sucessfully...

sorry my english...

[Box293]

You'll need to tell us the output from these suggestions.

Are you sure that localhost is your dhcp server? Try testing it with dhcping:

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dhcping -s <server ip> -c <client ip>

When I test our dhcp server, I get:

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[root@localhost ~]# dhcping -s 192.168.x.x -c 192.168.x.x
Got answer from: 192.168.x.x

but when I test it against localhost (it's not a dhcp server), I get "no answer"):

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[root@localhost ~]# dhcping -s 127.0.0.1 -c 192.168.x.x
no answer

If you don't have dhcping installed, you can install it by running:

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yum install dhcping -y

You can try some other tools for debugging, such as dhcpdump.

Also, are you certain that DHCP is even running?

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service dhcpd status