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The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

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Re: [vox-tech] firewall (ipchains)
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Re: [vox-tech] firewall (ipchains)




My forwarding works fine. I'm using the stock kernel for now, and I
believe it has ip_forwarding and whatnot enabled by default.

I bet i'm doing something silly with the rules.
I wish this was more intuitive :)

-Gabe

On Wed, 25 Apr 2001, Jan Wynholds wrote:

> Hey Gabe:
>
> I know for iptables you have to echo 1 to the special file
>
> /proc/sys/net/ipv4/ip_forward
>
> With all my ipchains/iptables scripts, at the very top I have:
>
> IPC = /usr/local/sbin/ipchains
>
> echo "1" > /proc/sys/net/ipv4/ip_forward
>
> $IPC -f ACCEPT
> $IPC -f FORWARD
>
> <SNIP>
>
> I am talking about redhatland here, but the same might apply to debian.  Dunno
> tho.  I know that in redhatland, you _must_ echo that 1 to that file, otherwise
> it doesn't matter what kind of rules you set up, because forwarding is not
> 'going on'.
>
> HTHO
>
> jan
>


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