Monitoring DHCP scope on WLC 5508

[Gunter]

Hi,

I have DHCP configured on the anchor controller but I don't know when DHCP scope is full on it. Do you have any idea or experience how to monitoring exhausted DHCP scope on WLC 5508?

Regarding

[George Stefanick]

This questions comes up from time to time. The WLC wasnt really built to handle DHCP by this I mean it doesn't do reservations, deletes leases after reboots etc .. So no ... sorry

But you have 2 options -- Make the scope bigger or move it to a real DHCP server ..

[Gunter]

Ok but WLC can send syslog messages and base on this we can create an alarm. When DHCP scope is full on the WLC then controller inform us about this:

DHCP Server: Nov 13 11:34:56.321: %DHCP-3-SEND_OFFER_FAIL: dhcpd.c:278 Unable to send DHCP offer. Could not allocate appropriate ip address from the scope
*DHCP Server: Nov 13 11:34:56.321: %DHCP-4-ADDR_NOT_ALLOCATED: serverpacket.c:205 No IP addresses to give -- OFFER abandoned -- packet dropped
*DHCP Server: Nov 13 11:34:52.416: %DHCP-3-SEND_OFFER_FAIL: dhcpd.c:278 Unable to send DHCP offer. Could not allocate appropriate ip address from the scope
*DHCP Server: Nov 13 11:34:52.416: %DHCP-4-ADDR_NOT_ALLOCATED: serverpacket.c:205 No IP addresses to give -- OFFER abandoned -- packet dropped

so If only I could detect this sentence from the syslog messages than I could create an alarm.