On Mon, 27 Mar 2000, Dan Browning wrote:
> For the last 8 hours I've checked every Linux resource I know:
> read the latest IPMasq-howto (linuxdoc.org), FAQ's, readme's, etc.
> read hours worth of masq-admin mailing list archives
> etc. etc.
> And still cannot figure out my simple question:
>
> How do I port foward in 2.2.x?
>
> The insmod ip_masq_portfw part works fine of course, but as far as the rest
> I cannot figure out:
>
> do I...
> portfw -a -P udp -L $extip 5800 -R $intip 5800
> or is it..
> ipmasqadm portfw -a -P etc...
> or is it...
> ipportfw -a -P
> or is it...
> ipfwadm etc. etc.
> or is it...
> ipfwadm-wrapper etc.?
>
> I don't have ipmasqadm on my rh6.1 box (kernel 2.2.12-20), though my current
> ipchains masqing setup works awesome. Is there an RPM that I haven't
> installed or something? Because I don't have portfw either. So how do you
> do it, and why doesn't it seem like this simple functionality is clearly
> documented in the howto? If it is clearly documented, then I'm retarded and
> deserve to be flamed.
ipautofw, redir and updred were the first port forwarding tools
available. Later they were replaced by ipportfw for 2.0 kernels, and
ipmasqadm with ipportfw support for 2.2 kernels. So, in your case the
syntax is:
ipmasqadm portfw -a -P udp -L $extip 5800 -R $intip 5800
ipchains -I forward -j MASQ -p udp -s $intip 5800
ipmasqadm tool can be found at http://juanjox.kernelnotes.org (there are
sources and glibc2 binaries available in tar.gz and rpm format).
As for the documentation, maybe you've been reading the wrong howto :)
Take a look at
http://metalab.unc.edu/pub/Linux/docs/HOWTO/IP-Masquerade-HOWTO
It's all in there.
cheers
alex
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