I am having problems with the checksnmp command, I am running some check_snmp commands against our DHCP server. In this specific instance I want a warning if the value is 17:23 and a critical if the value is 0:16, regardless of how i type it in, I get a critical message. Any ideas? ./check_snmp -C s8n1mp -H Corp208 -o .1.3.6.1.4.1.311.1.3.2.1.1.3.172.20.2.0 -w 17:23 -c 0:16 SNMP CRITICAL - *97* | iso.3.6.1.4.1.311.1.3.2.1.1.3.172.20.2.0=97c ./check_snmp -C s8n1mp -H Corp208 -o .1.3.6.1.4.1.311.1.3.2.1.1.3.172.20.2.0 -c 0:16 -w 16:23 SNMP CRITICAL - *97* | iso.3.6.1.4.1.311.1.3.2.1.1.3.172.20.2.0=97c If I put the vaules in backwards (i.e. -w 23:17 -c 16:0) I get an invalid date response. /check_snmp -C s8n1mp -H Corp208 -n -o .1.3.6.1.4.1.311.1.3.2.1.1.3.172.20.2.0 -c 16:0 -w 23:17 Range format incorrect