CRITICAL: No DHCPOFFERs were received

[benningtonr]

command in the config is as follows:
check_dhcp!

Any clues as to why it is not working. DHCP has been setup and working fine for many years.
Looking to switch from Solarwinds to Nagios, but the configuration is cumbersome.

Thank for the help

[scottwilkerson]

iptables is probably blocking it.

You can test by temporarily stopping iptables and running the check

Code: Select all

service iptables stop

run check

Code: Select all

service iptables start

You can add then to iptable by running the following

Code: Select all

iptables -I INPUT -i eth0 -p udp --dport 67:68 --sport 67:68 -j ACCEPT

[benningtonr]

[root@helpdesk84 libexec]# service iptables stop
iptables: Flushing firewall rules: [ OK ]
iptables: Setting chains to policy ACCEPT: filter [ OK ]
iptables: Unloading modules: [ OK ]
[root@helpdesk84 libexec]# service iptables start
iptables: Applying firewall rules: [ OK ]

Do I need to apply?
This is using a static IP address, but DHCP is running on the network.

[benningtonr]

got it, sorry had to re-read

[scottwilkerson]

Glad you got it!