log file monitoring not working on freebsd/pfsense

[robertchen]

I tried these:
only this works:
log[/tmp/openvpn.log,Error]

all the below are not supported:
logrt["/tmp/openvpn.log","Error",,20,skip]
logrt[/tmp/openvpn*.log,Error,,20,skip]
log["/tmp/openvpn.log","Error",,20,skip]
log[/tmp/openvpn.log,Error|error,,,skip]

it is freebsd/pfsense: 8.3-RELEASE-p16 FreeBSD 8.3-RELEASE-p16

please help. I want to skip old data but it does not work.

[tchjts1]

have you tried exactly like this?
log[/tmp/openvpn.log,error,,20,skip]

[robertchen]

have you tried exactly like this?
log[/tmp/openvpn.log,error,,20,skip]

seems it is because I am using zabbix 1.8.2 agent package on the pfsense.