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Date: Sun, 30 Jan 2005 02:05:28 +0100
From: albi <albi@scii.nl>
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Subject: Re: ipfw not working any more after upgrade to 5.3
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Roberto Nunnari wrote:

> I just upgraded my FreeBSD box to 5.3-RELEASE-p5
> from 5.2.1-RELEASE-p9 and now I can no longer use
> ipfw to fwd from one port to another:
> 
> # ipfw add fwd 192.168.1.5,8180 tcp from any to 192.168.1.5 80
> ipfw: getsockopt(IP_FW_ADD): Invalid argument

do you have the line : options IPFIREWALL_FORWARD
in your kernelconfigline ?