Nagios Support Forum

Figured it out, and of course I caused it. Here's what happened: We have two servers setup for dhcp, but of course it's only running on one of them (the dhcpd.conf file gets copied from primary to standby every couple of minutes). Yes we have to manually flip it over, but just forget about that for ...

(command omitted, but I ran it with my desktop computer's mac address and my fixed ip address, which are in the same vlan as the dhcp and nagios servers, as they are listed in the dhcpd.conf file) DHCP socket: 3 DHCPDISCOVER to 255.255.255.255 port 67 DHCPDISCOVER XID: 617080213 (0x24C7E595) DHCDISC...

running as root thx # iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination # The only way this "should" come up is if no valid dhcp offe...

UDP port 67 is used on the server site; UDP port 68 is used on the client site. Make sure these two ports are open. Hope this helps. It didn't, but thank you for your quick reply :-) As I said, servers are on the same network, firewalls are off so ports are open, DHCP Offer packet is getting delive...

Hello, I know this has been discussed in several threads already, but having tried the suggestions in each of those already to no avail I am posting this. Running the latest Nagios Core 3.5.0 and Plugins 1.4.16 on linux monitoring a [very functional!] linux-based ISC dhcp server in the same vlan. Mo...