I am trying to add a IPFW rule to forward traffic but I keep getting the message "ipfw: getsockopt(IP_FW_ADD): Invalid argument". The rule I am trying to add looks like this: ipfw add 600 fwd 192.169.2.3, 6000 tcp from 192.169.2.3 to any 80 I do have IP Forwarding enabled. Any ideas what I am doing wrong?