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From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Tom Marchand <m0rchand@comcast.net>
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Cc: freebsd-questions@freebsd.org
Subject: Re: IPFW Rule
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> 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?

rule looks OK, but your message clearly suggest you DO NOT have IP 
forwarding enabled