pfctl permission denied

Hi all,
it may be stupid question for all of you...i get some error on running
nocathauth-gateway, im using freebsd 6 and installing Nocat from Ports...
-------------------------------------------
pfctl: Permission denied
print: not found
[[: not found
[[: not found
------------------------------------------
i run the software as Root but it seems like i don't have enough privelleges
to run that "pfctl"..

help me..

thanks.,

chole