Need help: fwd on ipfw

Hello Mr Anderson,

So, the story is that the newer versions of 5.x comes with
forwarding
disabled, hence the inability to to ipfw add fwd?

Ok, will definately give it a try. Thanks for being a better
Googler than
me!

----- Original Message ----- 
From: "K Anderson" <freebsdusercomcast.net>
To: "Foo Ji-Haw" <jhfoonexlabs.com>;
<freebsd-questionsfreebsd.org>
Sent: Tuesday, October 04, 2005 12:59 PM
Subject: Re: Need help: fwd on ipfw


>
> ----- Original Message ----- 
> From: "Foo Ji-Haw" <jhfoonexlabs.com>
> To: <freebsd-questionsfreebsd.org>
> Sent: Monday, October 03, 2005 9:20 PM
> Subject: Need help: fwd on ipfw
>
>
> Hi all, I really need your help on this if you can...
>
> I am trying to put set up port forwarding on my
machine. So far the usual
> 'add allow' and 'add deny' rules work perfectly. The
most important rule
> which bugs me is the 'add fwd' rule, which the snippet
below shows:
> ipfw add fwd 192.168.0.4,80 tcp from 10.10.10.0 to any
80
>
> When I try to enter this on the command line, I get the
following error:
>  ipfw: getsockopt(IP_FW_ADD): Invalid Argument
>
> I tried researching the web. Some mention the error
only upon recompiling
> kernels. But I am using the standard 5.4 product
release as-is. My
firewall
> rules in rc.conf are as follows:
> firewall_enable="YES"
> firewall_logging="YES"
>
> I also have this line in dmesg:
>  ipfw2 initialized, divert disabled, rule-based
forwarding disabled,
default
> to deny, logging disabled
>
> I see that 'rule-based forwarding' is disabled. Is this
what caused the
> error? How can I enable it? I can't find the details on
the Handbook.
> -----------------
>
> I did a google search on your message and found
something. Here's a snip
of
> it.
>
> options IPFIREWALL
>  options IPFIREWALL_DEFAULT_TO_ACCEPT
>  options IPFIREWALL_VERBOSE
>  options IPFIREWALL_FORWARD
>
>  if you don't add them to your kernel, forwarding in
ipfw will  be
disabled.
>
> Here's the URL.
> http://archives.neohapsis.com/archives/freebsd/2
005-01/0089.html
>
> Hope that helps.
>
> ~Mr. Anderson
>
>
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