check_dhcp seems not working

[Holger Weiss]

JFTR:

* jmoseley at corp.xanadoo.com [2009-01-15 13:06]:
> If you're running Nagios on a different network than the DHCP server and
> there is a firewall in between, you'll probably have to do several things:
> 
> 1. Open up a hole in the firewall to allow the Nagios server to request a
> DHCP address from the DHCP server
> 2. Have a DHCP relay statement on the router's interface your Nagios server
> connects to so it knows to which server to relay the DHCP request to
> 3. Setup a small DHCP subnet on the DHCP server in the same IP range as the
> Nagios server so it can offer a valid IP address

For such a setup, step (2) isn't necessary, as check_dhcp will mimic a
DHCP relay if the "--unicast" option is specified.

Holger

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